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   Newbie questions about an St-70 4Mose11342View latest post on Wed Mar 21, 2012 9:34 am
by stewdan
No new posts   Lo-Gain still too much gain! 12craigtone2475View latest post on Tue Mar 20, 2012 9:16 pm
by craigtone
No new posts   ST-70 Two Year Birthday 181MOR2761View latest post on Mon Mar 19, 2012 11:24 pm
by 1MOR
No new posts   ST-70....Help!! Please. 13cc43fan2165View latest post on Mon Mar 19, 2012 8:47 pm
by cc43fan
No new posts   Hum when input disconnected 1wildiowa1414View latest post on Mon Mar 19, 2012 2:04 pm
by tubes4hifi
No new posts   Voltage question on Mk4 8harpy871View latest post on Sun Mar 18, 2012 6:22 pm
by harpy
No new posts   TUBES G.E. 7591A 2avi.inc988View latest post on Sat Mar 17, 2012 5:02 pm
by avi.inc
No new posts   resistor wattage 1wedg714988View latest post on Fri Mar 16, 2012 3:59 pm
by DynakitParts
No new posts   VTA-70 LED wiring.... 64MarkNY1487View latest post on Fri Mar 16, 2012 2:35 pm
by anbitet66
No new posts   Final wiring procedures on ST-120 7musky371935View latest post on Fri Mar 16, 2012 9:08 am
by musky37
No new posts   VTA timer board - who's using one? 5Tom1436View latest post on Fri Mar 16, 2012 7:54 am
by Tom
No new posts   B+ is running high in one of my MKIV's 5Guest1127View latest post on Thu Mar 15, 2012 1:53 am
by Guest
No new posts   BIAS problem in a vintage st-70 5zekaaudio1244View latest post on Wed Mar 14, 2012 6:56 pm
by tubes4hifi
No new posts   Dynaco ST-70 060Power Transformer question 4cc43fan1486View latest post on Wed Mar 14, 2012 6:02 pm
by cc43fan
No new posts   390 pf - 82pf  1harpy836View latest post on Wed Mar 14, 2012 2:37 am
by tubes4hifi
No new posts   Ground connections for PAS-2 selector switch and input/output connectors 15maninmac7717052View latest post on Mon Mar 12, 2012 5:19 pm
by KelleyMc
No new posts   VTA ST120 Bias 4ArlanB1968View latest post on Fri Mar 09, 2012 7:50 am
by Jhoman
No new posts   My ST-70 Rebuild 17lwrs102818View latest post on Fri Mar 09, 2012 12:25 am
by tubes4hifi
No new posts   New AC plug wiring for ST-70 4cc43fan1853View latest post on Thu Mar 08, 2012 4:08 am
by heyraz
No new posts   Noobie re-building an ST-70 9cc43fan2043View latest post on Tue Mar 06, 2012 3:45 pm
by cc43fan
No new posts   PAS2 quad cap  1zadig991View latest post on Tue Mar 06, 2012 3:03 am
by hawaii.ken
No new posts   FM-3 tube sub 0denny9167949View latest post on Mon Mar 05, 2012 11:48 pm
by denny9167
No new posts   VTA driver board, high or low gain? 3alexg1442View latest post on Mon Mar 05, 2012 6:20 am
by Bob Latino
No new posts   Problem with the bias readings in a pair of MKIV's 3Guest1763View latest post on Mon Mar 05, 2012 3:35 am
by Guest
No new posts   lundahl ll1660/s for phase invertion/splitting 5alexg1822View latest post on Mon Mar 05, 2012 3:02 am
by tubes4hifi
No new posts   TAD 5AR4 cryo treated rectifier tube 9Feistygoat3451View latest post on Sat Mar 03, 2012 10:53 pm
by Feistygoat
No new posts   FM3 circuit boards 13baddog19463521View latest post on Sat Mar 03, 2012 10:37 pm
by denny9167
No new posts   Dynaco ST-70 Driver Board Cover Plate 2Analogman1959View latest post on Fri Mar 02, 2012 11:18 pm
by GP49
No new posts   FM-3 Transformer Specs 2denny9167962View latest post on Fri Mar 02, 2012 10:31 pm
by denny9167
No new posts   Hello.. I am new here Greetings, I have a question about my Dynaco Sysyem.. 4vincentdsnt726View latest post on Fri Mar 02, 2012 7:55 pm
by vincentdsnt
No new posts   Couple of pics of my St 120 2Jhoman1091View latest post on Fri Mar 02, 2012 7:53 pm
by Jhoman
No new posts   Oil Filled Caps 9harpy2348View latest post on Mon Feb 27, 2012 11:22 pm
by heyraz
No new posts   ST120 with IEC Inlet Question 15Disles13294View latest post on Sun Feb 26, 2012 10:05 am
by baddog1946
No new posts   5Z3P rectifier Tube, what do you guy's know about it? 3Tanner3014View latest post on Sun Feb 26, 2012 9:55 am
by anbitet66
No new posts   need help with potential st-70 problem 3wedg714828View latest post on Sat Feb 25, 2012 11:55 am
by wedg714
No new posts   RIP William C. "Bill" Thomas - a great Dynaco resource ... 4Bob Latino2627View latest post on Sat Feb 25, 2012 4:01 am
by Tune
No new posts   Quad cap schematic. 1baddog19461200View latest post on Sat Feb 25, 2012 12:16 am
by Sal
No new posts   UPGRADED C-13 AND C-14 GET VERY HOT 7detoxer1065View latest post on Fri Feb 24, 2012 11:56 am
by detoxer
No new posts   ST70 cage screws 3KCGuy331314View latest post on Thu Feb 23, 2012 9:54 pm
by Sal
No new posts   passive pre amp? 19pscottlowe3162View latest post on Wed Feb 22, 2012 1:55 pm
by pscottlowe
No new posts   st70 bias problem 8dynacoman1365View latest post on Wed Feb 22, 2012 3:37 am
by dynacoman
No new posts   Rectifier Tube Option? 2t8ter1553View latest post on Wed Feb 22, 2012 12:40 am
by GP49
No new posts   my ST-120 moving woes  10baddog19461306View latest post on Sun Feb 19, 2012 11:20 am
by baddog1946
No new posts   Newbie needs more advice 3grizzinca924View latest post on Sun Feb 19, 2012 12:56 am
by grizzinca
No new posts   Stereo 70 bias problem 9dondi521844View latest post on Sat Feb 18, 2012 10:04 pm
by dynacoman
No new posts   Roy is amazing! 0awise1961906View latest post on Fri Feb 17, 2012 5:08 pm
by awise1961
No new posts   GZ34 Soft Start Synchronizer 5t8ter2721View latest post on Fri Feb 17, 2012 1:27 pm
by GP49
This topic is locked: you cannot edit posts or make replies.   Low bias voltage throughout- is it the quad cap? [Update: It was the quad cap.] 14calinet62281View latest post on Fri Feb 17, 2012 8:55 am
by Bob Latino
No new posts   Damaged resistor 2grizzinca1006View latest post on Fri Feb 17, 2012 8:50 am
by grizzinca
No new posts   Mk IV Questions 21harpy3053View latest post on Fri Feb 17, 2012 12:28 am
by tubes4hifi
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