knowledge base for the classic Dynaco ST70
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- section line speaker for st-70 ?
by mati1979 » Wed Feb 10, 2010 8:09 am
- 13 Replies
- 5713 Views
- Last post by EWBrown
Fri Feb 12, 2010 10:33 am
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- Making an ST-70 Driver Board
by antiquekid3 » Thu Feb 04, 2010 9:45 pm
- 42 Replies
- 15765 Views
- Last post by antiquekid3
Thu Feb 11, 2010 5:00 pm
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- Bias Pot Idea
by antiquekid3 » Sat Feb 06, 2010 10:32 pm
- 3 Replies
- 2489 Views
- Last post by antiquekid3
Mon Feb 08, 2010 11:18 pm
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- Power Supply (capacitor) Questions
by antiquekid3 » Fri Feb 05, 2010 9:38 pm
- 11 Replies
- 4728 Views
- Last post by antiquekid3
Sun Feb 07, 2010 1:20 pm
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- loud buzz after bypassing selenium rectifier with diode
by jerkbag » Sun Jan 31, 2010 8:08 pm
- 4 Replies
- 3099 Views
- Last post by TomMcNally
Fri Feb 05, 2010 5:35 pm
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- Triode Kit...dead channel
by kingmatt » Sun Jan 31, 2010 3:51 pm
- 1 Replies
- 2003 Views
- Last post by kingmatt
Tue Feb 02, 2010 3:22 pm
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- WTB New or re-wound A-470
by xlr8 » Sat Jan 30, 2010 9:31 am
- 3 Replies
- 2417 Views
- Last post by xlr8
Sun Jan 31, 2010 1:28 pm
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- Parts arrived today, more questions...
by xlr8 » Sat Jan 16, 2010 2:54 pm
- 12 Replies
- 5257 Views
- Last post by nyazzip
Sat Jan 30, 2010 9:54 pm
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- To mod or not to mod......
by tenthumbs » Fri Jan 22, 2010 7:31 pm
- 6 Replies
- 3307 Views
- Last post by dcriner
Sat Jan 23, 2010 5:18 pm
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- Four A25 speakers
by tenthumbs » Thu Jan 21, 2010 9:09 pm
- 2 Replies
- 2230 Views
- Last post by kheper
Thu Jan 21, 2010 10:09 pm
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- Triode electronics 6AU6/12au7 driver board for the stereo 70
by burnedfingers » Sun Jan 10, 2010 9:11 am
- 3 Replies
- 2964 Views
- Last post by burnedfingers
Sat Jan 16, 2010 4:03 pm
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- Volume on an ST-70
by Clik2media » Wed Jan 06, 2010 7:08 pm
- 5 Replies
- 3011 Views
- Last post by mesherm
Thu Jan 07, 2010 12:27 am
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- Polarity based caps
by Clik2media » Mon Jan 04, 2010 11:52 pm
- 4 Replies
- 2658 Views
- Last post by Clik2media
Tue Jan 05, 2010 4:47 pm
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- input voltages
by jcm2555 » Sun Jan 03, 2010 2:31 am
- 4 Replies
- 2707 Views
- Last post by Sal Brisindi
Mon Jan 04, 2010 6:49 am
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- Can cap question; What can it take with it when it goes?
by xlr8 » Mon Dec 28, 2009 7:09 am
- 25 Replies
- 9690 Views
- Last post by xlr8
Sat Jan 02, 2010 3:32 pm
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- Dumb of me.
by justinsweber » Wed Dec 09, 2009 6:00 pm
- 3 Replies
- 2503 Views
- Last post by soundmasterg
Sat Dec 12, 2009 5:25 pm
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- ST-70 DynaMutt
by Geek » Mon Aug 10, 2009 5:09 am
- 15 Replies
- 8719 Views
- Last post by Geek
Tue Nov 24, 2009 9:50 pm
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- Weird Distortion on Redid ST70
by tomlang » Fri Nov 13, 2009 3:38 pm
- 11 Replies
- 4440 Views
- Last post by tomlang
Tue Nov 17, 2009 6:55 am
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- GSI board I need a parts list and any diagram's
by Tanner » Tue Nov 10, 2009 7:20 pm
- 3 Replies
- 2518 Views
- Last post by burnedfingers
Tue Nov 17, 2009 6:00 am
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- improving a ST70 Triode
by mati1979 » Wed Nov 11, 2009 6:48 pm
- 9 Replies
- 4173 Views
- Last post by mati1979
Thu Nov 12, 2009 2:24 pm
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- Spreadsheet For Tube Rolling Information
by skidave » Fri Nov 06, 2009 2:08 pm
- 0 Replies
- 1894 Views
- Last post by skidave
Fri Nov 06, 2009 2:08 pm
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- Triode ST-70 Clone bias
by coop402 » Wed Nov 04, 2009 11:16 am
- 6 Replies
- 3964 Views
- Last post by coop402
Thu Nov 05, 2009 8:42 am
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- When should bias reading be taken?
by kevco » Sat Sep 26, 2009 11:30 am
- 4 Replies
- 2963 Views
- Last post by Bob01605
Wed Oct 28, 2009 1:07 pm
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- ST70 rebuild, original schematics and hardwired
by Rovano » Sat Oct 17, 2009 4:13 pm
- 7 Replies
- 3964 Views
- Last post by Quad
Wed Oct 21, 2009 9:57 pm
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- St-70 running Magnapan speakers, Will this hurt the amp??
by Tanner » Mon Oct 19, 2009 7:20 pm
- 5 Replies
- 3101 Views
- Last post by skidave
Tue Oct 20, 2009 1:46 pm
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- On ebay: SOUNDVALVES VTA70i Complete Circuit Board
by tomlang » Tue Oct 13, 2009 7:20 pm
- 7 Replies
- 7688 Views
- Last post by EWBrown
Thu Oct 15, 2009 8:08 am
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- ST-70 Dropping Resistor Question
by skidave » Mon Oct 12, 2009 11:32 am
- 5 Replies
- 2743 Views
- Last post by Geek
Mon Oct 12, 2009 4:23 pm
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- 5963 tube swap in for 12AU7?
by justinsweber » Fri Oct 09, 2009 5:50 pm
- 6 Replies
- 11302 Views
- Last post by kheper
Sat Oct 10, 2009 1:51 pm
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- Dialing in the top end?
by Normster » Sat Sep 12, 2009 11:54 am
- 6 Replies
- 3667 Views
- Last post by Normster
Wed Oct 07, 2009 8:55 am
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- Earth lift resistors on PC-3 and VTA driver boards
by mugsy » Sun Oct 04, 2009 5:58 pm
- 2 Replies
- 2291 Views
- Last post by mugsy
Mon Oct 05, 2009 1:41 pm
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- Sovtek el34wxt Any good??
by Tanner » Tue Sep 22, 2009 5:36 pm
- 9 Replies
- 6712 Views
- Last post by Dynacophil
Thu Sep 24, 2009 7:41 am
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- diytube ST70 oscillates without a speaker load
by davygrvy » Sat Aug 08, 2009 11:32 am
- 20 Replies
- 9804 Views
- Last post by Geek
Wed Sep 23, 2009 1:26 pm
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- Dynaco ST-70, Mark II, III and IV Bias balancing kit
by Sal Brisindi » Sun Sep 20, 2009 8:15 am
- 3 Replies
- 3021 Views
- Last post by Sal Brisindi
Sun Sep 20, 2009 4:01 pm
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- Are Original ST-70's known to short the OPT?
by Geek » Fri Jul 31, 2009 1:58 am
- 6 Replies
- 3124 Views
- Last post by EWBrown
Wed Sep 16, 2009 6:39 pm
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- Buzzing Choke
by mgalusha » Sat Aug 08, 2009 9:57 pm
- 8 Replies
- 6171 Views
- Last post by Bob01605
Wed Sep 09, 2009 1:04 pm
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- Looking for Bias Potentiometer Nuts
by skidave » Tue Sep 08, 2009 10:55 am
- 4 Replies
- 2644 Views
- Last post by skidave
Tue Sep 08, 2009 7:31 pm
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- little noise (sound) and vibration (in chassis)
by mati1979 » Wed Jun 03, 2009 5:04 pm
- 8 Replies
- 3872 Views
- Last post by mati1979
Sun Aug 23, 2009 6:22 pm
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- Output tap to speaker impedance
by kevco » Mon Aug 03, 2009 10:04 am
- 6 Replies
- 3847 Views
- Last post by burnedfingers
Sat Aug 15, 2009 6:01 am
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- st-70 vs.. any MC tube ?
by mati1979 » Sun Aug 09, 2009 2:17 pm
- 4 Replies
- 2706 Views
- Last post by mesherm
Thu Aug 13, 2009 10:10 am
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- Failsafe Bias for the ST-70
by Geek » Thu Aug 06, 2009 4:49 pm
- 16 Replies
- 9304 Views
- Last post by davygrvy
Sat Aug 08, 2009 2:27 am
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- ST-70 Up but...Dirty mains?
by DoubleAA » Fri Aug 07, 2009 12:07 am
- 8 Replies
- 3803 Views
- Last post by DoubleAA
Fri Aug 07, 2009 5:50 pm
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- Help Debugging bias (?) problem.
by DoubleAA » Fri Jul 31, 2009 1:43 pm
- 8 Replies
- 3805 Views
- Last post by Brik
Sat Aug 01, 2009 8:40 pm
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- St 70 on the job
by leadtower » Tue Nov 29, 2005 8:49 pm
- 16 Replies
- 14774 Views
- Last post by skidave
Sun Jul 26, 2009 6:28 pm
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- Individual tube bias on a "classic" ST-70
by EdStiles » Sun Jul 19, 2009 9:49 am
- 3 Replies
- 3330 Views
- Last post by soundmasterg
Mon Jul 20, 2009 12:19 am
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- Stupid middle of the night question
by justinsweber » Wed Jul 08, 2009 1:17 am
- 1 Replies
- 1912 Views
- Last post by TomMcNally
Wed Jul 08, 2009 10:56 am
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- New ST-70 Driver board - Blackburn Audio
by beatgr » Sun Jun 22, 2008 1:00 pm
- 39 Replies
- 20240 Views
- Last post by Cobra2
Wed Jul 01, 2009 12:44 pm
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- Triode Electronics ST-70 Kit
by TomMcNally » Mon Jun 29, 2009 6:01 pm
- 6 Replies
- 4056 Views
- Last post by TomMcNally
Tue Jun 30, 2009 9:26 pm
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- What are the exact specifications of the power transformer?
by Geek » Fri Jun 19, 2009 1:22 am
- 5 Replies
- 3413 Views
- Last post by EWBrown
Mon Jun 29, 2009 9:31 am
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- RCA jacks replacement options
by guitarpsych » Wed May 13, 2009 5:28 pm
- 12 Replies
- 6193 Views
- Last post by Dynacophil
Mon Jun 29, 2009 7:15 am
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- Regarding bias of ST70 with DIYTUBE driver board
by kevco » Sun Jun 28, 2009 11:33 am
- 1 Replies
- 1949 Views
- Last post by TomMcNally
Sun Jun 28, 2009 1:10 pm
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