Atom Feed - Twisted Pear Audio Support - Forum:Trident RegulatorsTwisted Pear Audio Support - Atom Feedurn:twistedpearaudio-com:AtomFeed:TwistedPearAudioSupport:Forum:TridentRegulators:1Copyright 2024 Twisted Pear Audio Support2024-03-29T09:17:54Zhttp://www.twistedpearaudio.com/forum/Images/YAFLogo.pngForum Adminhttp://www.twistedpearaudio.comfeedback@twistedpearaudio.comaljordanhttp://www.twistedpearaudio.com/forum/profile/27274-aljordanaljordanhttp://www.twistedpearaudio.com/forum/profile/27274-aljordanBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-DoneganOhmegaMikehttp://www.twistedpearaudio.com/forum/profile/26888-OhmegaMikePossumhttp://www.twistedpearaudio.com/forum/profile/25416-Possumtdmckellarhttp://www.twistedpearaudio.com/forum/profile/26725-tdmckellarBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-Donegankesgreenhttp://www.twistedpearaudio.com/forum/profile/662-kesgreenavr300http://www.twistedpearaudio.com/forum/profile/396-avr300greggtthttp://www.twistedpearaudio.com/forum/profile/26373-greggttRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteDBX01http://www.twistedpearaudio.com/forum/profile/26462-DBX01LeonvBhttp://www.twistedpearaudio.com/forum/profile/2435-LeonvBRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-DoneganJordohttp://www.twistedpearaudio.com/forum/profile/17730-JordoBrian Doneganhttp://www.twistedpearaudio.com/forum/profile/8-Brian-DoneganRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-WhiteRuss Whitehttp://www.twistedpearaudio.com/forum/profile/9-Russ-Whitedsolodovhttp://www.twistedpearaudio.com/forum/profile/3395-dsolodovsolarstabihttp://www.twistedpearaudio.com/forum/profile/870-solarstabiYetAnotherForum.NETurn:twistedpearaudio-com:ftTopics:st1:tid4324:lmid26311:1R4 on Trident SR v2.0?<table class="content postContainer_Alt" width="100%"><tr><td>Hello,<br /><br />I bought a Buffalo IIISE Pro from another builder. I am getting static when trying to run sampling rates higher than 192 kHz. I searched forums and found that one needs to add through hole resistor R4 on the 1.2V trident in order to raise the current enough for the extended sampling rates. The integration guide speaks of Trident V1.0 and 3.0, but the version included with my DAC has V2.0 printed on the board, and no marking for R4. There appears to be a set of through holes surrounding R1, but no marking. I've attached an image of the regulator, and would be thankful for some feedback on how I raise the current for this particular version of the Trident.<br /><br />Thank you<br /><br /> [attach]2140[/attach]</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m26311-R4-on-Trident-SR-v2-0#post26311" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2023-12-21T17:24:42-07:002023-12-21T17:24:42-07:00aljordan<table class="content postContainer_Alt" width="100%"><tr><td>Hello,<br /><br />I bought a Buffalo IIISE Pro from another builder. I am getting static when trying to run sampling rates higher than 192 kHz. I searched forums and found that one needs to add through hole resistor R4 on the 1.2V trident in order to raise the current enough for the extended sampling rates. The integration guide speaks of Trident V1.0 and 3.0, but the version included with my DAC has V2.0 printed on the board, and no marking for R4. There appears to be a set of through holes surrounding R1, but no marking. I've attached an image of the regulator, and would be thankful for some feedback on how I raise the current for this particular version of the Trident.<br /><br />Thank you<br /><br /> [attach]2140[/attach]</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m26311-R4-on-Trident-SR-v2-0#post26311" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid4251:lmid26123:1Is AVCC_SR V1.0 still latest version?<table class="content postContainer_Alt" width="100%"><tr><td>I will get this cleared up on the web pages.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m26123-Is-AVCC-SR-V1-0-still-latest-version#post26123" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2021-03-17T17:27:32-07:002021-03-17T17:27:32-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td>I will get this cleared up on the web pages.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m26123-Is-AVCC-SR-V1-0-still-latest-version#post26123" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid4049:lmid25933:1New 9028PRO and Trident SRs - 1.2V Reg Failed<table class="content postContainer_Alt" width="100%"><tr><td>I've had trouble with my Buffalo-IIIsePro38 from the start. The 1.3v trident is still outputting 1.3v but runs hot enough to burn my finger! The circuit board is getting brown. Running the centaur 5v and HD placid for the 15's. The DAC will not play over DSD64, and won't play high bitrate PCM. Had the fading in and out white noise when playing DSD which I have seen others talk about...<br /><br />Now, my DAC has a new feature. While playing music, sounds slightly distorted, and it has crackles and pops, that sounds like a dirty vinyl record!<br /><br />I suspect it may be the 1.3 Trident. What can be used in place of this regulator? <br /><br />P.S. - The system also has the Mercury I/V, Cronus, and amanero. Running Roon with a linux based endpoint.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m25933-New-9028PRO-and-Trident-SRs---1-2V-Reg-Failed#post25933" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2020-08-03T16:53:32-07:002020-08-03T16:53:32-07:00OhmegaMike<table class="content postContainer_Alt" width="100%"><tr><td>I've had trouble with my Buffalo-IIIsePro38 from the start. The 1.3v trident is still outputting 1.3v but runs hot enough to burn my finger! The circuit board is getting brown. Running the centaur 5v and HD placid for the 15's. The DAC will not play over DSD64, and won't play high bitrate PCM. Had the fading in and out white noise when playing DSD which I have seen others talk about...<br /><br />Now, my DAC has a new feature. While playing music, sounds slightly distorted, and it has crackles and pops, that sounds like a dirty vinyl record!<br /><br />I suspect it may be the 1.3 Trident. What can be used in place of this regulator? <br /><br />P.S. - The system also has the Mercury I/V, Cronus, and amanero. Running Roon with a linux based endpoint.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m25933-New-9028PRO-and-Trident-SRs---1-2V-Reg-Failed#post25933" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid4077:lmid25323:1New Trident SR 3.3v failures on ES9038<table class="content postContainer_Alt" width="100%"><tr><td>I've just had a second failure of a 3.3v Series Trident. My latest 9038 build has been working for a couple of weeks. Left it on for a couple of days to finish burning it in and it suddenly stopped working.<br /><br />The 3.3v SR on the XO inexplicably died. I am using a diyinhk 5v series regulator in front of a placid HD. The voltage was exactly 5V.<br /><br />Precisely the same thing happened to my first 9038 build (except on the other 3.3v SR). It ran fine for a few days before a Trident died for no good reason.<br /><br />Both failures cause a dead short across GND and VIN. Luckily the placid shunt reg handles dead shorts reasonably gracefully by dropping the voltage.<br /><br />I see someone had a similar issue with the 1.2v SR Trident. That one does get quite hot on the 9038 compared to the 3.3v<br /><br />I have upgraded to SR Tridents on all my 9018 boards without issue. Am in the process of replacing the DAC chips in all those boards tho and this issue concerns me as I was looking to use only the 5v linear reg due t</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m25323-New-Trident-SR-3-3v-failures-on-ES9038#post25323" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2018-05-02T04:34:56-07:002018-05-02T04:34:56-07:00Possum<table class="content postContainer_Alt" width="100%"><tr><td>I've just had a second failure of a 3.3v Series Trident. My latest 9038 build has been working for a couple of weeks. Left it on for a couple of days to finish burning it in and it suddenly stopped working.<br /><br />The 3.3v SR on the XO inexplicably died. I am using a diyinhk 5v series regulator in front of a placid HD. The voltage was exactly 5V.<br /><br />Precisely the same thing happened to my first 9038 build (except on the other 3.3v SR). It ran fine for a few days before a Trident died for no good reason.<br /><br />Both failures cause a dead short across GND and VIN. Luckily the placid shunt reg handles dead shorts reasonably gracefully by dropping the voltage.<br /><br />I see someone had a similar issue with the 1.2v SR Trident. That one does get quite hot on the 9038 compared to the 3.3v<br /><br />I have upgraded to SR Tridents on all my 9018 boards without issue. Am in the process of replacing the DAC chips in all those boards tho and this issue concerns me as I was looking to use only the 5v linear reg due t</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m25323-New-Trident-SR-3-3v-failures-on-ES9038#post25323" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid4018:lmid25073:1Trident AVCC or AVCC-SR<table class="content postContainer_Alt" width="100%"><tr><td>The AVCC module on my B3 supplying power to the left channel has died, not sure of the cause.<br />(see post here: <a target="_blank" rel="nofollow" href="http://www.twistedpearaudio.com/forum/posts/t4017-Music-playing-then-Left-Channel-went" title="http://www.twistedpearaudio.com/forum/posts/t4017-Music-playing-then-Left-Channel-went">http://www.twistedpearau...g-then-Left-Channel-went</a>)<br /><br />Should it be replaced with the Trident AVCC Dual 3.6V or the AVCC-SR Dual 3.6V?<br /><br />If I was to go for the AVCC-SR, do I also have to change the other Tridents to the SR series?<br /><br />Thank you</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m25073-Trident-AVCC-or-AVCC-SR#post25073" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2017-10-23T17:18:01-07:002017-10-23T17:18:01-07:00tdmckellar<table class="content postContainer_Alt" width="100%"><tr><td>The AVCC module on my B3 supplying power to the left channel has died, not sure of the cause.<br />(see post here: <a target="_blank" rel="nofollow" href="http://www.twistedpearaudio.com/forum/posts/t4017-Music-playing-then-Left-Channel-went" title="http://www.twistedpearaudio.com/forum/posts/t4017-Music-playing-then-Left-Channel-went">http://www.twistedpearau...g-then-Left-Channel-went</a>)<br /><br />Should it be replaced with the Trident AVCC Dual 3.6V or the AVCC-SR Dual 3.6V?<br /><br />If I was to go for the AVCC-SR, do I also have to change the other Tridents to the SR series?<br /><br />Thank you</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m25073-Trident-AVCC-or-AVCC-SR#post25073" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3996:lmid24984:1AVCC module configuration<table class="content postContainer_Alt" width="100%"><tr><td><ul><li>VD is connected directly to the VD power input terminal, and supplies power to the onboard Vreg and all Trident/AVCC pads.<br /><li>GND is connected to the power input terminal and is common across the board.<br /><li>AVCC is connected to the AVCC Left and Right pins of the ES9018. The outputs of the AVCC module feed these pins. <br /><li>DVCC is connected to the output of the Dvcc regulator, and is generally not used, but is available for special applications.<br /><br /></ul></td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m24984-AVCC-module-configuration#post24984" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2017-08-10T18:41:36-07:002017-08-10T18:41:36-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td><ul><li>VD is connected directly to the VD power input terminal, and supplies power to the onboard Vreg and all Trident/AVCC pads.<br /><li>GND is connected to the power input terminal and is common across the board.<br /><li>AVCC is connected to the AVCC Left and Right pins of the ES9018. The outputs of the AVCC module feed these pins. <br /><li>DVCC is connected to the output of the Dvcc regulator, and is generally not used, but is available for special applications.<br /><br /></ul></td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m24984-AVCC-module-configuration#post24984" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3886:lmid24423:1Dead AVCCS?<table class="content postContainer_Alt" width="100%"><tr><td>New AVCC modules arrived nice and fast. My Buffalos live again!<br /><br />Now I just need to try to get Hermes/Cronus/Botic and my Volumite to work...</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m24423-Dead-AVCCS#post24423" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2016-07-19T16:21:46-07:002016-07-19T16:21:46-07:00kesgreen<table class="content postContainer_Alt" width="100%"><tr><td>New AVCC modules arrived nice and fast. My Buffalos live again!<br /><br />Now I just need to try to get Hermes/Cronus/Botic and my Volumite to work...</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m24423-Dead-AVCCS#post24423" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3640:lmid24147:1Question about AVCC Dual Shunt Regulator Module<table class="content postContainer_Alt" width="100%"><tr><td>Correct</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m24147-Question-about-AVCC-Dual-Shunt-Regulator-Module#post24147" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2016-04-03T16:02:15-07:002016-04-03T16:02:15-07:00avr300<table class="content postContainer_Alt" width="100%"><tr><td>Correct</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m24147-Question-about-AVCC-Dual-Shunt-Regulator-Module#post24147" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3665:lmid23681:1Trident V1.1 / Buffalo III<table class="content postContainer_Alt" width="100%"><tr><td>Please revive this thread!<br /><br />I've followed this with interest as I too experienced a noise coming from my current-release Buffalo-III, similar to what 'igy137' described. Based solely on information posted by 'igy137' and 'peteo' (thank you!), I completely eliminated the noise by placing a 4.7uF (tantalum) cap on the output of the VDD_XO Trident reg only. What I lose sleep over, and what both Igy and Peter have alluded to, is this a good fix or merely covering up an underlying problem that should be diagnosed?<br /> <br />My current configuration is:<br />TPA Toslink module -> coax wire -> miniSHARC -> I2S [1.5"] ribbon cable ->B-III/Tridents [purchased 3/15] 6-channel mode, volume control pot -> (6) shielded twisted pair cable ->(3) IVY-3 -> balanced amps. A single 5.0v linear reg feeds the TOSLINK board, miniSHARC and B-III/Tridents. I believe my layout conforms to general recommendations, and wiring/soldering to be of the highest quality. The noise was sufficiently loud to be heard 1-2' from a</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23681-Trident-V1-1----Buffalo-III#post23681" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2016-01-11T02:47:58-07:002016-01-11T02:47:58-07:00greggtt<table class="content postContainer_Alt" width="100%"><tr><td>Please revive this thread!<br /><br />I've followed this with interest as I too experienced a noise coming from my current-release Buffalo-III, similar to what 'igy137' described. Based solely on information posted by 'igy137' and 'peteo' (thank you!), I completely eliminated the noise by placing a 4.7uF (tantalum) cap on the output of the VDD_XO Trident reg only. What I lose sleep over, and what both Igy and Peter have alluded to, is this a good fix or merely covering up an underlying problem that should be diagnosed?<br /> <br />My current configuration is:<br />TPA Toslink module -> coax wire -> miniSHARC -> I2S [1.5"] ribbon cable ->B-III/Tridents [purchased 3/15] 6-channel mode, volume control pot -> (6) shielded twisted pair cable ->(3) IVY-3 -> balanced amps. A single 5.0v linear reg feeds the TOSLINK board, miniSHARC and B-III/Tridents. I believe my layout conforms to general recommendations, and wiring/soldering to be of the highest quality. The noise was sufficiently loud to be heard 1-2' from a</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23681-Trident-V1-1----Buffalo-III#post23681" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3753:lmid23569:1Transistor missing OMG + question<table class="content postContainer_Alt" width="100%"><tr><td>As for the question on the common mode voltage - this is one of the reasons we went with this particular op amp. It actually works quite well with 1.2V at V- (actually testing and measuring) because of the total correction mode. For most circuits I would never try it. We simply haven't found anything better to use yet. :)<br /><br />Cheers!<br />Russ</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23569-Transistor-missing-OMG--question#post23569" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-11-27T23:44:17-07:002015-11-27T23:44:17-07:00Russ White<table class="content postContainer_Alt" width="100%"><tr><td>As for the question on the common mode voltage - this is one of the reasons we went with this particular op amp. It actually works quite well with 1.2V at V- (actually testing and measuring) because of the total correction mode. For most circuits I would never try it. We simply haven't found anything better to use yet. :)<br /><br />Cheers!<br />Russ</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23569-Transistor-missing-OMG--question#post23569" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3748:lmid23480:1Need documentation on the Trident Voltage Regulators<table class="content postContainer_Alt" width="100%"><tr><td>The pre-regulators I have will not output a DC Voltage below 5 volts. Are there any pre-regulators that are recommended to be used with the Tridents?<br /><br />I have two 3.3V, one 1.2V, and one dual 3.5V shunt regulator.<br /><br />Thanks.<br /><br />Mike</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23480-Need-documentation-on-the-Trident-Voltage-Regulators#post23480" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-11-13T20:27:10-07:002015-11-13T20:27:10-07:00DBX01<table class="content postContainer_Alt" width="100%"><tr><td>The pre-regulators I have will not output a DC Voltage below 5 volts. Are there any pre-regulators that are recommended to be used with the Tridents?<br /><br />I have two 3.3V, one 1.2V, and one dual 3.5V shunt regulator.<br /><br />Thanks.<br /><br />Mike</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23480-Need-documentation-on-the-Trident-Voltage-Regulators#post23480" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3709:lmid23171:1Trident footprint<table class="content postContainer_Alt" width="100%"><tr><td>3 pins, 0.1" pitch.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23171-Trident-footprint#post23171" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-10-01T17:10:13-07:002015-10-01T17:10:13-07:00LeonvB<table class="content postContainer_Alt" width="100%"><tr><td>3 pins, 0.1" pitch.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23171-Trident-footprint#post23171" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3657:lmid23032:112.5MHz ripple on trident 3.0 supplying XO<table class="content postContainer_Alt" width="100%"><tr><td>Yu also have to watch for loops between the scope and the device under test. AC - transformer coupling can help there.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23032-12-5MHz-ripple-on-trident-3-0-supplying-XO#post23032" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-08-26T21:03:23-07:002015-08-26T21:03:23-07:00Russ White<table class="content postContainer_Alt" width="100%"><tr><td>Yu also have to watch for loops between the scope and the device under test. AC - transformer coupling can help there.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m23032-12-5MHz-ripple-on-trident-3-0-supplying-XO#post23032" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3654:lmid22842:1Trident Regulators for the Oppo Blu-Ray Disc Player<table class="content postContainer_Alt" width="100%"><tr><td>They should work fine. <br /><br />I cannot advise you in how to implement them, however, as I do not have an OPPO player to reference.<br /><br />Just find a power source within the player that is around 5-8VDC to source them.<br /><br /></td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22842-Trident-Regulators-for-the-Oppo-Blu-Ray-Disc-Player#post22842" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-07-21T12:14:12-07:002015-07-21T12:14:12-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td>They should work fine. <br /><br />I cannot advise you in how to implement them, however, as I do not have an OPPO player to reference.<br /><br />Just find a power source within the player that is around 5-8VDC to source them.<br /><br /></td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22842-Trident-Regulators-for-the-Oppo-Blu-Ray-Disc-Player#post22842" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3649:lmid22816:1Trident Upgrade<table class="content postContainer_Alt" width="100%"><tr><td>Hi all,<br /><br />Today I built in my Trident/AVCC Combo for the BIII.<br />As alway's I think the new electronics need to play for some hours before taking an detailed listening but I must say that already quite some difference could be experienced!<br /><br />The sound has eased some more making all the details very subtile and controlled.<br />The music has become more 3D imaged and layerd and even more transparant.<br /><br />It wasn't a cheap upgrade bu I must say I'm immpressed of what these little PCB's can do!<br /><br />Only have two Placid HD's left to upgrade <img src="/forum/Images/Emoticons/eusa_think.gif" alt="Think" /> <br /><br />Cheers,<br /><br />Jordo</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22816-Trident-Upgrade#post22816" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-07-07T19:49:24-07:002015-07-07T19:49:24-07:00Jordo<table class="content postContainer_Alt" width="100%"><tr><td>Hi all,<br /><br />Today I built in my Trident/AVCC Combo for the BIII.<br />As alway's I think the new electronics need to play for some hours before taking an detailed listening but I must say that already quite some difference could be experienced!<br /><br />The sound has eased some more making all the details very subtile and controlled.<br />The music has become more 3D imaged and layerd and even more transparant.<br /><br />It wasn't a cheap upgrade bu I must say I'm immpressed of what these little PCB's can do!<br /><br />Only have two Placid HD's left to upgrade <img src="/forum/Images/Emoticons/eusa_think.gif" alt="Think" /> <br /><br />Cheers,<br /><br />Jordo</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22816-Trident-Upgrade#post22816" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3148:lmid22767:1Trident Availability<table class="content postContainer_Alt" width="100%"><tr><td>Waiting on more boards to arrive. It should be within the next two weeks.<br /><br />I then have to build them, but just bought a pick and place machine, so it should go fast.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22767-Trident-Availability#post22767" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-06-12T20:08:50-07:002015-06-12T20:08:50-07:00Brian Donegan<table class="content postContainer_Alt" width="100%"><tr><td>Waiting on more boards to arrive. It should be within the next two weeks.<br /><br />I then have to build them, but just bought a pick and place machine, so it should go fast.</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22767-Trident-Availability#post22767" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3562:lmid22291:1Trident V1.0 ripple<table class="content postContainer_Alt" width="100%"><tr><td>Yes that looks like a very clear ground loop. :)</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22291-Trident-V1-0-ripple#post22291" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-02-08T15:02:33-07:002015-02-08T15:02:33-07:00Russ White<table class="content postContainer_Alt" width="100%"><tr><td>Yes that looks like a very clear ground loop. :)</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22291-Trident-V1-0-ripple#post22291" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3565:lmid22253:1AVCC 2.1 regulator problem<table class="content postContainer_Alt" width="100%"><tr><td>Almost always this is a dead op amp. I replied to your direct email. Usually it is far more cost effective to replace the module - and in this case the AVCC 3.0 is a very large improvement over 2.1.<br /><br />Cheers!<br />Russ</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22253-AVCC-2-1-regulator-problem#post22253" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-02-01T22:05:43-07:002015-02-01T22:05:43-07:00Russ White<table class="content postContainer_Alt" width="100%"><tr><td>Almost always this is a dead op amp. I replied to your direct email. Usually it is far more cost effective to replace the module - and in this case the AVCC 3.0 is a very large improvement over 2.1.<br /><br />Cheers!<br />Russ</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22253-AVCC-2-1-regulator-problem#post22253" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3500:lmid22148:1AVCC/Trident regulators, self generated noise<table class="content postContainer_Alt" width="100%"><tr><td>What options should I implement considering OPA(2)209 is already soldered in? I do not have an instrumental noise amplifier to make measurements myself...<br /><br />Options:<br />1. Do nothing<br />2. Replace R1 with 100R and R2 with 130R<br />3. Increased compensation capacitors from 100pF to 870pF. (Which Cx?!?)<br />4. Increases CSS. (Which parts & values?)</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22148-AVCC-Trident-regulators--self-generated-noise#post22148" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-01-09T19:08:08-07:002015-01-09T19:08:08-07:00dsolodov<table class="content postContainer_Alt" width="100%"><tr><td>What options should I implement considering OPA(2)209 is already soldered in? I do not have an instrumental noise amplifier to make measurements myself...<br /><br />Options:<br />1. Do nothing<br />2. Replace R1 with 100R and R2 with 130R<br />3. Increased compensation capacitors from 100pF to 870pF. (Which Cx?!?)<br />4. Increases CSS. (Which parts & values?)</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22148-AVCC-Trident-regulators--self-generated-noise#post22148" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>urn:twistedpearaudio-com:ftTopics:st1:tid3543:lmid22110:1Max temperature tolerance of latest AVCC?<table class="content postContainer_Alt" width="100%"><tr><td>Thanks Russ.<br />For now I'll concentrate on keeping everything cool.<br />Will consider new Placids when I add WaveIo (on order)</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22110-Max-temperature-tolerance-of-latest-AVCC#post22110" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>2015-01-03T01:14:23-07:002015-01-03T01:14:23-07:00solarstabi<table class="content postContainer_Alt" width="100%"><tr><td>Thanks Russ.<br />For now I'll concentrate on keeping everything cool.<br />Will consider new Placids when I add WaveIo (on order)</td></tr></table><table><tr><td><a href="http://www.twistedpearaudio.com/forum/posts/m22110-Max-temperature-tolerance-of-latest-AVCC#post22110" ><img src="http://www.twistedpearaudio.com/forum/Themes/BlackGrey/icon_newest_reply.png" alt ="Go to last post" title ="Go to last post" /></a></td></tr><table>