knowledge base for the classic Dynaco ST70
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- A470 transformers replacement
by bulldog » Fri Jan 25, 2013 4:14 am
- 5 Replies
- 6121 Views
- Last post by pmarcin
Sat Apr 20, 2013 2:29 pm
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- Simple Question
by pmarcin » Sat Apr 20, 2013 12:53 pm
- 2 Replies
- 3581 Views
- Last post by pmarcin
Sat Apr 20, 2013 1:48 pm
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- List of power supply boards/options for ST-70?
by Aljaheejus » Thu Feb 02, 2012 10:38 pm
- 14 Replies
- 11301 Views
- Last post by pmarcin
Sat Apr 20, 2013 1:41 pm
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- vu meters on A VTA St-70 Kit
by islanddave » Mon Jan 14, 2013 3:14 pm
- 11 Replies
- 7647 Views
- Last post by burnedfingers
Tue Jan 29, 2013 6:04 am
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- Overhaulin' the ST70
by TerrySmith » Tue Mar 01, 2011 9:52 am
- 33 Replies
- 27199 Views
- Last post by kheper
Sat Dec 29, 2012 4:06 pm
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- New VTA driver boards. To upgrade or not
by thisisjay » Tue Dec 18, 2012 5:10 pm
- 3 Replies
- 4290 Views
- Last post by mesherm
Wed Dec 19, 2012 3:36 pm
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- Beefing up a ST70
by battradio » Sun Nov 04, 2012 10:11 pm
- 12 Replies
- 8595 Views
- Last post by burnedfingers
Sat Dec 08, 2012 3:21 pm
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- pair of st-70 OPTs on ebay
by nyazzip » Sun Nov 11, 2012 10:26 pm
- 4 Replies
- 3386 Views
- Last post by nyazzip
Sat Nov 17, 2012 2:25 am
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- A nice ST70 build, original board, custom chassis
by Quad » Tue Nov 06, 2012 10:26 pm
- 2 Replies
- 2888 Views
- Last post by Shannon Parks
Thu Nov 08, 2012 6:54 am
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- 12BH7 optimization instead of 12au7
by battradio » Wed Oct 17, 2012 7:23 pm
- 3 Replies
- 3303 Views
- Last post by Shannon Parks
Wed Oct 31, 2012 6:03 am
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- 6922's for driver board?
by iqmike » Fri Oct 26, 2012 6:54 pm
- 14 Replies
- 5992 Views
- Last post by Shannon Parks
Wed Oct 31, 2012 6:03 am
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- Stereo 70 Mechanical Drawings
by kt88pppamp » Wed Oct 24, 2012 4:16 pm
- 5 Replies
- 3087 Views
- Last post by kt88pppamp
Tue Oct 30, 2012 5:30 pm
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- A470 Lead I.D.
by Geezer » Wed Jul 18, 2012 9:51 pm
- 2 Replies
- 2385 Views
- Last post by burnedfingers
Mon Sep 17, 2012 4:53 pm
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- What Resistors To Use?
by gfederys » Sun Sep 09, 2012 5:46 am
- 3 Replies
- 2935 Views
- Last post by gfederys
Tue Sep 11, 2012 10:34 am
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- Tube Rectifier Current
by skidave » Sat Aug 04, 2012 1:15 pm
- 3 Replies
- 3159 Views
- Last post by burnedfingers
Mon Aug 06, 2012 4:53 am
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- Triode ST 70 Bias Expansion
by kingmatt » Mon Jun 11, 2012 7:36 pm
- 15 Replies
- 8612 Views
- Last post by burnedfingers
Sat Aug 04, 2012 1:46 am
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- ST70 PT Bias Current
by Geezer » Sun Jul 15, 2012 5:31 pm
- 11 Replies
- 5173 Views
- Last post by burnedfingers
Mon Jul 23, 2012 4:26 am
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- The A470 OPT, an interesting work of art.
by Geek » Mon Sep 14, 2009 3:07 pm
- 32 Replies
- 34057 Views
- Last post by Geek
Sun Jul 08, 2012 2:25 am
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- where is the bias pin in my rebuilt dynaco st-70?
by vuthecuongjapan » Sun May 27, 2012 9:20 pm
- 2 Replies
- 2840 Views
- Last post by Geek
Mon May 28, 2012 10:45 pm
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- .02uF Ceramic Caps Filament Winding Centertaps to Gnd ST-70
by Scott Novak » Thu Apr 05, 2012 10:59 am
- 5 Replies
- 3225 Views
- Last post by burnedfingers
Tue May 15, 2012 5:10 am
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- EL-34 question; can't read bias
by joeriz » Sat Apr 07, 2012 10:03 am
- 8 Replies
- 4223 Views
- Last post by dcgillespie
Sun May 06, 2012 2:11 pm
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- DIYtube ST-70 driver Resistor Substitution question
by Aljaheejus » Tue Feb 07, 2012 11:14 pm
- 3 Replies
- 3310 Views
- Last post by Scott Novak
Mon Apr 09, 2012 5:33 am
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- DIY Tube Driver Board
by janna » Wed Apr 04, 2012 9:55 am
- 4 Replies
- 3555 Views
- Last post by janna
Fri Apr 06, 2012 6:56 pm
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- 8417's in a Stereo 70?
by burnedfingers » Thu May 12, 2011 5:02 am
- 11 Replies
- 9175 Views
- Last post by kheper
Fri Mar 23, 2012 6:05 am
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- ST 70 Runaway Bias
by kingmatt » Thu Mar 01, 2012 2:35 pm
- 19 Replies
- 8227 Views
- Last post by kheper
Mon Mar 05, 2012 4:14 pm
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- st70-Power Cable Gauge
by snitch56 » Fri Feb 25, 2011 6:48 pm
- 32 Replies
- 17641 Views
- Last post by DeathRex
Wed Feb 01, 2012 9:07 pm
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- Driver mod
by battradio » Fri Jan 13, 2012 12:07 pm
- 2 Replies
- 3252 Views
- Last post by Shannon Parks
Sat Jan 14, 2012 6:11 am
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- DC Offset on Input
by skidave » Mon Dec 19, 2011 8:30 pm
- 3 Replies
- 2976 Views
- Last post by skidave
Tue Dec 20, 2011 12:57 pm
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- Anybody got any idea of what this might be?
by kevco » Tue Apr 12, 2011 1:27 pm
- 8 Replies
- 4756 Views
- Last post by battradio
Sun Dec 18, 2011 10:27 am
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- Show me your ugly stereo 70
by burnedfingers » Wed Sep 28, 2011 4:18 pm
- 14 Replies
- 6533 Views
- Last post by 20to20
Wed Dec 07, 2011 11:48 pm
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- Using a ST 70 biamped
by battradio » Wed Nov 30, 2011 7:20 pm
- 6 Replies
- 4145 Views
- Last post by 20to20
Fri Dec 02, 2011 8:53 pm
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- Interested in a ST-70 driver with Mullard 5-20 circuit?
by Geek » Tue Aug 18, 2009 1:59 pm
- 21 Replies
- 11153 Views
- Last post by Geek
Fri Dec 02, 2011 5:33 pm
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- ST70 modern style of me
by Ultraline » Fri Nov 25, 2011 12:34 pm
- 25 Replies
- 10923 Views
- Last post by Geek
Sun Nov 27, 2011 10:49 pm
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- Replacing ST-70 driver board - a RETORATION or REBUILD ???
by cheap-Jack » Mon Oct 31, 2011 10:50 am
- 15 Replies
- 9497 Views
- Last post by Geek
Tue Nov 08, 2011 8:14 pm
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- 6SL7/6SL7 Driver board for Dynaco stereo 70
by burnedfingers » Sat Apr 16, 2011 8:31 am
- 8 Replies
- 5738 Views
- Last post by Thatch
Thu Jul 28, 2011 7:21 pm
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- Restoring a ST-70
by Dynaco_WJW » Tue Jul 05, 2011 2:20 pm
- 31 Replies
- 16260 Views
- Last post by soundmasterg
Mon Jul 25, 2011 7:00 am
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- Advice needed, buying ST-70, where to look at?
by Dynaco_WJW » Sat Jun 18, 2011 2:35 am
- 11 Replies
- 8402 Views
- Last post by Dynaco_WJW
Sun Jul 10, 2011 10:20 am
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- Realistic Lifetime 5AR4
by kt88pppamp » Tue Jun 28, 2011 9:39 pm
- 22 Replies
- 10239 Views
- Last post by EWBrown
Fri Jul 08, 2011 1:31 pm
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- EL34 identification help
by TerrySmith » Sun Mar 06, 2011 12:09 pm
- 12 Replies
- 7894 Views
- Last post by Dynacophil
Sat Jun 04, 2011 2:17 pm
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- "New" Chris Keller ST-70
by zonker92 » Thu Apr 14, 2011 11:50 am
- 9 Replies
- 6789 Views
- Last post by burnedfingers
Wed Apr 20, 2011 5:52 am
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- VTA Board Wiring Question
by zonker92 » Fri Apr 15, 2011 12:05 pm
- 1 Replies
- 3158 Views
- Last post by dcgillespie
Fri Apr 15, 2011 4:53 pm
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- My first project.
by MrMiele » Tue Feb 08, 2011 11:11 pm
- 47 Replies
- 23961 Views
- Last post by MrMiele
Sun Apr 10, 2011 11:45 am
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- Need help on deep clean/polish of PAS3X knobs and faceplates
by zebrostripe » Fri Apr 01, 2011 10:35 pm
- 3 Replies
- 3140 Views
- Last post by zebrostripe
Sat Apr 02, 2011 8:45 am
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- C354 Info?
by Geek » Tue Mar 15, 2011 2:31 am
- 1 Replies
- 2612 Views
- Last post by Geek
Thu Mar 31, 2011 12:56 am
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- Hot-Rodded ST-70 Kit (Tubes4Hifi)
by highflyin9 » Mon Jan 31, 2011 9:05 am
- 33 Replies
- 19341 Views
- Last post by burnedfingers
Sat Mar 12, 2011 12:21 pm
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- humm and buzz
by chopchip » Wed Feb 23, 2011 8:13 am
- 5 Replies
- 3878 Views
- Last post by TomMcNally
Wed Feb 23, 2011 10:10 pm
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- Uses for an old quad cap
by TerrySmith » Sun Feb 13, 2011 3:25 pm
- 16 Replies
- 8421 Views
- Last post by dcriner
Sun Feb 20, 2011 9:24 am
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- ST-70 Purchasing questions
by zebrostripe » Sun Feb 06, 2011 1:24 am
- 7 Replies
- 4797 Views
- Last post by burnedfingers
Sun Feb 20, 2011 5:52 am
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- New guy with a new ST-70 project
by Wardsweb » Sat Jan 02, 2010 8:27 am
- 27 Replies
- 15724 Views
- Last post by WA4SWJ
Wed Feb 09, 2011 7:50 am
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- ST70 Output Transformers
by Bob » Sun Feb 06, 2011 3:14 pm
- 3 Replies
- 3316 Views
- Last post by Geek
Sun Feb 06, 2011 4:55 pm
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