The Dynaco Tube Audio Forum

Dedicated to the restoration and preservation of all original Dynaco tube audio equipment - Customer support for Tubes4hifi VTA tube amp and preamp kits and all Dynakitparts.com products


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No new posts   Help on Mods original Dynaco ST-70 with VTA board/PAS3X 8Pigboat947View latest post on Tue Jun 09, 2020 12:27 am
by GreggW
No new posts   ST120 appreciation 4grosen486View latest post on Mon Jun 08, 2020 9:13 pm
by grosen
No new posts   The Dan Steele ST-70 II amp rebuild 7Bob Latino3229View latest post on Mon Jun 08, 2020 7:07 pm
by boeingpilot
No new posts   Hum - Right Channel - ST-120 4jimmeq233View latest post on Mon Jun 08, 2020 5:59 pm
by solderblob
No new posts   Board Cover  8Jwalke39477View latest post on Sat Jun 06, 2020 10:16 am
by Jwalke39
No new posts   ST70 tone playback warble 5kiwidad175View latest post on Fri Jun 05, 2020 3:54 am
by peterh
No new posts   Bias not stopping to zero  1, 230B&WTube1469View latest post on Wed Jun 03, 2020 9:00 pm
by tubes4hifi
No new posts   VTA70 PCB - What Happens if I Change C1 & C2 from 0.1 to 0.22uf? 2knotscott136View latest post on Wed Jun 03, 2020 8:38 pm
by knotscott
No new posts   Audio Bull$hit 1, 230deepee993074View latest post on Wed Jun 03, 2020 8:06 am
by kiwidad
No new posts   Reel to reel. The format from hell. 1, 239Dave_in_Va1576View latest post on Sun May 31, 2020 6:28 pm
by Dale Stevens
No new posts   Compatibility of Dynaco PAS with VTA ST70, Subwoofers, and other power amps -- INPUT IMPEDANCE discussion 1, 2, ... , 4, 5104rjpjnk4979View latest post on Sat May 30, 2020 6:35 pm
by rjpjnk
No new posts   Dynaco PAS 3 510k output resistor / impedance 3Midwestside309View latest post on Sat May 30, 2020 12:38 am
by rjpjnk
No new posts   Recomended voltage ratings for PAS 3 resistors and caps 1, 243Midwestside800View latest post on Fri May 29, 2020 7:02 pm
by Midwestside
No new posts   ST-120 to ST-70 conversion? 2music235View latest post on Fri May 29, 2020 7:00 pm
by Bob Latino
No new posts   New Guy here  15caferacer59381View latest post on Sun May 24, 2020 3:49 pm
by PeterCapo
No new posts   Comparison of Gold Lion KT66 versus KT77 0Purple_MTB208View latest post on Sun May 24, 2020 11:45 am
by Purple_MTB
No new posts   MK3 boards 2doncrossman264View latest post on Wed May 20, 2020 9:14 pm
by doncrossman
No new posts   Setting Bias Step by Step Instructions 2Dogstar314View latest post on Tue May 19, 2020 9:51 am
by Dogstar
No new posts   Tubes4hifi SP8 Preamp 1MechEngVic350View latest post on Mon May 18, 2020 11:11 pm
by tubes4hifi
No new posts   Pas Hum/Buzz 1rudes208View latest post on Mon May 18, 2020 1:55 pm
by peterh
No new posts   EDIT-FIXED PAS 3 with Phono Hum on phono and special inputs 4Midwestside631View latest post on Mon May 18, 2020 9:22 am
by Midwestside
No new posts   Power Conditioner? 7music632View latest post on Mon May 18, 2020 2:34 am
by peterh
No new posts   AC Power Issue 3jimmeq268View latest post on Sun May 17, 2020 4:35 pm
by jimmeq
No new posts   Old person - old Stereo 70 - new to all this - kindergarten questions 5JamesD710View latest post on Sun May 17, 2020 1:02 pm
by gto1967ho
No new posts   ST120 kit auto bias question (new to forum) 4grosen281View latest post on Sun May 17, 2020 11:54 am
by grosen
No new posts   PAS 3X Dynaco  3WPFW893FM206View latest post on Sat May 16, 2020 3:25 pm
by PeterCapo
No new posts   Dynaco Cap Board 10Mark Korda554View latest post on Fri May 15, 2020 2:39 am
by peterh
No new posts   SP12 with PH14  5DavidR333View latest post on Thu May 14, 2020 10:37 am
by DavidR
No new posts   Audio Forums 3shermanaudio529View latest post on Thu May 14, 2020 1:33 am
by MechEngVic
No new posts   ST-70 No Bias Voltage in Front Output Tubes 8tjplatt509View latest post on Thu May 14, 2020 12:57 am
by MechEngVic
No new posts   Manual reset GFCI 2Earl312View latest post on Mon May 11, 2020 12:34 pm
by Earl
No new posts   Electrolytic caps in tube amps.. They do have life span .. 2Bob Latino262View latest post on Mon May 11, 2020 12:02 pm
by Bob Latino
No new posts   Good tube preamp under 600$ 16Midwestside740View latest post on Sat May 09, 2020 5:30 pm
by MechEngVic
No new posts   New Production CE Quad Cap Reliability (?) 1, 234danmartinic1058View latest post on Sun May 03, 2020 11:40 am
by danmartinic
No new posts   Electric Zap sound and shut off on my VTA ST-70 2James_Weir206View latest post on Sat May 02, 2020 9:17 pm
by James_Weir
No new posts   A week of listening to my VTA 70 and im hooked! 6Midwestside441View latest post on Fri May 01, 2020 10:50 am
by Midwestside
No new posts   PSVANE KT88-T MARK ii 1rodulfo23359View latest post on Fri May 01, 2020 4:38 am
by Halvis
No new posts   Output Tube Arcing? 3medphys246View latest post on Tue Apr 28, 2020 1:57 pm
by Bob Latino
No new posts   NOS Mullard 12au7 Lights up bright inside tube on start up but amp seems to play fine. 5Midwestside262View latest post on Mon Apr 27, 2020 10:37 pm
by Midwestside
No new posts   Hi/Lo phono inputs on old int. tube amp (Harmon Kardon) 4Dave_in_Va175View latest post on Sun Apr 26, 2020 6:38 pm
by Dave_in_Va
No new posts   Mark III Output Transformers 0OldFrisco327View latest post on Sat Apr 25, 2020 6:50 pm
by OldFrisco
No new posts   Random red plate on a stock Dynaco ST-70 amp 9boeingpilot499View latest post on Sat Apr 25, 2020 11:36 am
by PeterCapo
No new posts   2x original Dynaco ST-70's with VTA board with continued issues after service 20Sigjunk1634View latest post on Fri Apr 24, 2020 6:39 pm
by fenderbender
No new posts   ST-120 Amp Repair? 0music275View latest post on Thu Apr 23, 2020 12:32 pm
by music
No new posts   Question about el34 and / or tube filaments 2Midwestside209View latest post on Tue Apr 21, 2020 9:07 pm
by Midwestside
No new posts   Finally got my VTA ST 70 rolling 4Midwestside274View latest post on Mon Apr 20, 2020 8:32 pm
by wildiowa
No new posts   RESOLVED - original Dyna / VTA ST-70- One Output Tubes Doesn't Light 2knotscott193View latest post on Thu Apr 16, 2020 3:29 pm
by knotscott
No new posts   Gold Lion KT-88 Issues? 4music463View latest post on Wed Apr 15, 2020 7:06 pm
by wildiowa
No new posts   Loving the AB's 5LeGrace452View latest post on Wed Apr 15, 2020 6:13 am
by Hops
No new posts   Question about Open loop gain for VTA-70 8peterh564View latest post on Sun Apr 12, 2020 3:46 pm
by peterh
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