knowledge base for the classic Dynaco ST70
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- ST-70 build combining kits, help needed
by Aljaheejus » Sun Apr 24, 2016 10:02 pm
- 25 Replies
- 107862 Views
- Last post by Aljaheejus
Wed Jan 11, 2023 1:40 am
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- ST-70 Welborne labs
by AAaldo » Sun Mar 29, 2020 8:50 am
- 3 Replies
- 13401 Views
- Last post by AAaldo
Mon Mar 30, 2020 12:13 pm
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- 807 ST70?
by Shannon Parks » Fri Oct 20, 2006 6:00 am
- 15 Replies
- 30954 Views
- Last post by Thermion
Fri Dec 20, 2019 1:12 pm
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- Dynaco ST 70 Series III by Radial
by Linn lover » Thu Dec 06, 2018 9:46 pm
- 4 Replies
- 9830 Views
- Last post by dannyr
Tue Dec 17, 2019 12:15 am
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- Erratic bias
by dmag » Mon Oct 28, 2019 3:23 pm
- 2 Replies
- 7712 Views
- Last post by dmag
Wed Oct 30, 2019 12:13 pm
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- ST-70 Series III
by dmfraser » Tue Apr 07, 2015 10:52 am
- 16 Replies
- 30404 Views
- Last post by Linn lover
Thu Jan 24, 2019 2:52 pm
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- triode electronics driver board wiring question
by deathman68 » Wed Jan 11, 2017 5:23 am
- 1 Replies
- 11335 Views
- Last post by cdmawolf
Thu Jan 12, 2017 6:25 pm
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- ST70 power supply question
by franciscano » Mon Sep 12, 2016 1:58 am
- 3 Replies
- 11318 Views
- Last post by fp2000
Wed Nov 16, 2016 2:23 pm
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- New Edcor Iron of ST-70 Interest
by Geek » Wed May 01, 2013 5:00 am
- 3 Replies
- 11919 Views
- Last post by fp2000
Mon Nov 14, 2016 11:29 am
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- Anyone ever measure the A470's impedance?
by Shannon Parks » Mon May 23, 2011 6:12 am
- 22 Replies
- 43212 Views
- Last post by Geek
Sat Nov 05, 2016 7:56 pm
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- Shannon's board availability for st-70
by tomsamps » Mon Sep 05, 2016 7:49 am
- 13 Replies
- 27824 Views
- Last post by EWBrown
Sun Oct 02, 2016 6:44 pm
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- ST-70 DIYTube Driver Board Bias Problem
by mazeeff » Thu Jan 16, 2014 1:35 pm
- 21 Replies
- 29093 Views
- Last post by VuTran2003
Mon Jul 25, 2016 10:11 pm
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- Best output tubes for Dynaco ST-70
by darkhawk22 » Fri Apr 29, 2016 9:02 am
- 13 Replies
- 21096 Views
- Last post by dannyr
Mon May 30, 2016 7:26 pm
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- Triode Electronics - Experiences?
by deathman68 » Tue Jan 12, 2016 4:17 pm
- 26 Replies
- 41692 Views
- Last post by blueglow
Wed Sep 14, 2016 4:37 pm
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- Intro and Question about Quad Cap
by deathman68 » Wed Dec 30, 2015 7:23 pm
- 9 Replies
- 17491 Views
- Last post by Quad
Mon Jan 11, 2016 2:54 am
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- Tube noise and speaker crackling - SOLVED
by galael » Mon Dec 28, 2015 9:00 pm
- 10 Replies
- 18367 Views
- Last post by Geek
Sun Jan 10, 2016 12:32 am
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- PA-060 Leads identification
by ppatenaude » Tue Nov 17, 2015 11:55 am
- 1 Replies
- 8796 Views
- Last post by cdmawolf
Sat Nov 21, 2015 7:27 pm
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- Microphonics?
by rockdrigo » Wed Oct 28, 2015 5:53 pm
- 2 Replies
- 9116 Views
- Last post by rockdrigo
Thu Oct 29, 2015 4:47 am
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- New Transformer not what I expected
by joeztech » Fri Sep 05, 2014 11:46 am
- 4 Replies
- 11690 Views
- Last post by joeztech
Wed Oct 07, 2015 5:43 pm
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- ST70 voltage readings a bit off
by barbosas » Tue Sep 22, 2015 9:46 am
- 4 Replies
- 11174 Views
- Last post by barbosas
Thu Sep 24, 2015 2:36 am
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- Hum....whats normal in a st70
by mrED » Mon Sep 14, 2015 3:18 pm
- 6 Replies
- 12159 Views
- Last post by jgf
Fri Sep 18, 2015 8:49 am
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- ST-70s in mono?
by mad1 » Sat Jun 27, 2015 7:37 am
- 2 Replies
- 10123 Views
- Last post by mad1
Sun Jun 28, 2015 7:16 am
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- Restoration of ST-70 Finished w OEM Board
by joeztech » Fri Sep 19, 2014 12:52 pm
- 17 Replies
- 27167 Views
- Last post by Kyle Korum
Mon Jun 08, 2015 5:59 pm
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- Project: eBay ST-70 with Rats nest inside.....
by Kyle Korum » Sun Oct 23, 2011 1:15 pm
- 21 Replies
- 31799 Views
- Last post by Kyle Korum
Sun Jun 07, 2015 3:57 pm
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- PA-060 Upgrade
by Geek » Sat Feb 14, 2015 8:54 pm
- 11 Replies
- 16927 Views
- Last post by tomlang
Tue Mar 03, 2015 8:14 am
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- ST-70 & PAS AC switch impulse noise
by joeztech » Sun Nov 09, 2014 12:15 pm
- 4 Replies
- 11849 Views
- Last post by joeztech
Mon Nov 10, 2014 3:29 pm
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- ST70 Tube Alternates
by dcriner » Sun Oct 12, 2014 4:36 pm
- 1 Replies
- 9013 Views
- Last post by skidave
Mon Oct 13, 2014 9:17 am
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- Using a ST-70 with VTA70 board and PAS Preamp
by joeztech » Wed Sep 24, 2014 6:30 pm
- 3 Replies
- 10306 Views
- Last post by joeztech
Sun Sep 28, 2014 8:15 pm
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- Sanity check of A470 Output Xfmrs
by joeztech » Wed Aug 20, 2014 8:50 am
- 8 Replies
- 14505 Views
- Last post by joeztech
Mon Sep 08, 2014 4:12 pm
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- A470 Transformer Choices
by joeztech » Sat Sep 06, 2014 7:39 am
- 2 Replies
- 9434 Views
- Last post by joeztech
Sat Sep 06, 2014 3:20 pm
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- ST-70 Power Supply Question
by joeztech » Sun Aug 31, 2014 3:28 pm
- 3 Replies
- 9817 Views
- Last post by Geek
Mon Sep 01, 2014 12:38 am
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- Converting 7199s to 6GH8A
by joeztech » Tue Aug 19, 2014 8:16 am
- 3 Replies
- 10063 Views
- Last post by joeztech
Tue Aug 26, 2014 2:51 pm
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- Stock board bias balance question
by dannyr » Tue Apr 08, 2014 12:24 pm
- 10 Replies
- 17288 Views
- Last post by kheper
Tue Apr 22, 2014 6:07 pm
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- PICS of diy bd from low right channel amp
by alcors3 » Fri Nov 22, 2013 9:02 am
- 12 Replies
- 22646 Views
- Last post by dannyr
Fri Apr 11, 2014 11:49 am
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- e80cc tubes
by alcors3 » Thu Dec 26, 2013 10:16 am
- 2 Replies
- 9700 Views
- Last post by EWBrown
Sat Dec 28, 2013 9:50 pm
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- Sound Valves VTA-70i
by kheper » Wed Nov 13, 2013 7:50 am
- 2 Replies
- 10452 Views
- Last post by Geek
Sun Dec 08, 2013 5:47 pm
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- Point To Point, 100 Percent, No Kit
by eddiegnz1 » Tue Oct 29, 2013 6:39 am
- 4 Replies
- 11547 Views
- Last post by TerrySmith
Sun Dec 08, 2013 5:32 pm
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- Voltages for DIY ST70 w/ weak right channel
by alcors3 » Thu Oct 24, 2013 7:57 am
- 9 Replies
- 15104 Views
- Last post by alcors3
Thu Nov 21, 2013 3:28 pm
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- DIY Tube st70--right channel weak
by alcors3 » Tue Oct 22, 2013 5:00 am
- 5 Replies
- 11593 Views
- Last post by Shannon Parks
Fri Oct 25, 2013 3:46 pm
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- Choke replacements
by TerrySmith » Tue Jan 25, 2011 10:02 am
- 10 Replies
- 24270 Views
- Last post by kheper
Fri Oct 04, 2013 11:40 am
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- diytube driver board
by alcors3 » Sat Sep 28, 2013 10:58 am
- 3 Replies
- 10287 Views
- Last post by Shannon Parks
Sun Sep 29, 2013 8:23 am
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- Replacing 7199 With 6GH8 And Comparing THD
by dspth » Mon Sep 02, 2013 5:15 am
- 1 Replies
- 9600 Views
- Last post by dcriner
Tue Sep 17, 2013 1:38 pm
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- urls for driver bd documentation
by alcors3 » Mon Sep 16, 2013 5:59 am
- 1 Replies
- 8884 Views
- Last post by Shannon Parks
Mon Sep 16, 2013 7:15 am
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- Stereo 70 B+ nodes
by petercapo » Fri Jul 19, 2013 5:41 pm
- 9 Replies
- 15494 Views
- Last post by petercapo
Thu Jul 25, 2013 7:27 am
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- Bias drift in one channel of DIYTube Stereo 70
by DerekVa » Mon May 20, 2013 11:48 pm
- 11 Replies
- 18984 Views
- Last post by DerekVa
Thu May 23, 2013 7:44 pm
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- Help - Initial bias too high with DIYTube driver board?
by DerekVa » Thu May 16, 2013 10:21 am
- 5 Replies
- 11477 Views
- Last post by DerekVa
Thu May 16, 2013 10:53 pm
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- Help! Initial ias too high with OE Mullard + DIYTube board?
by DerekVa » Thu May 16, 2013 10:08 am
- 0 Replies
- 8322 Views
- Last post by DerekVa
Thu May 16, 2013 10:08 am
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- No input = potential damage to tweeters ?
by Blair » Tue May 14, 2013 9:34 am
- 4 Replies
- 10542 Views
- Last post by Blair
Tue May 14, 2013 10:32 am
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- Rectifier tubes?
by Blair » Sat Apr 20, 2013 7:04 pm
- 22 Replies
- 74113 Views
- Last post by kheper
Tue May 14, 2013 5:48 am
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- Question: VTA individual bias vs. DIYTube bias + balance?
by DerekVa » Wed May 08, 2013 11:58 am
- 4 Replies
- 11089 Views
- Last post by Shannon Parks
Sun May 12, 2013 7:36 am
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