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   passive pre amp? 19pscottlowe3652View latest post Wed Feb 22, 2012 11:55 am
by pscottlowe
No new posts   st70 bias problem 8dynacoman1749View latest post Wed Feb 22, 2012 1:37 am
by dynacoman
No new posts   Rectifier Tube Option? 2t8ter2105View latest post Tue Feb 21, 2012 10:40 pm
by GP49
No new posts   my ST-120 moving woes  10baddog19461605View latest post Sun Feb 19, 2012 9:20 am
by baddog1946
No new posts   Newbie needs more advice 3grizzinca1183View latest post Sat Feb 18, 2012 10:56 pm
by grizzinca
No new posts   Stereo 70 bias problem 9dondi522297View latest post Sat Feb 18, 2012 8:04 pm
by dynacoman
No new posts   Roy is amazing! 0awise19611250View latest post Fri Feb 17, 2012 3:08 pm
by awise1961
No new posts   GZ34 Soft Start Synchronizer 5t8ter3991View latest post Fri Feb 17, 2012 11:27 am
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.] 14calinet62832View latest post Fri Feb 17, 2012 6:55 am
by Bob Latino
No new posts   Damaged resistor 2grizzinca1246View latest post Fri Feb 17, 2012 6:50 am
by grizzinca
No new posts   Mk IV Questions 21harpy3797View latest post Thu Feb 16, 2012 10:28 pm
by Roy Mottram
No new posts   ST-70 Driver Board Decision 9awise19613166View latest post Thu Feb 16, 2012 3:25 pm
by awise1961
No new posts   Pas3x tone controls 3dmag2511View latest post Thu Feb 16, 2012 3:06 pm
by Roy Mottram
No new posts   [ST-70] EL-34 6Nicola1793View latest post Thu Feb 16, 2012 2:48 pm
by HiGHFLYiN9
No new posts   Anyone using NOS Russian GZ34's? 24anbitet665384View latest post Thu Feb 16, 2012 12:40 pm
by anbitet66
No new posts   Roy's new SP14 and PH14 1Mike G.2816View latest post Thu Feb 16, 2012 10:48 am
by Roy Mottram
No new posts   ST-120 from Jeff Hoak nice 0pscottlowe1007View latest post Wed Feb 15, 2012 7:22 pm
by pscottlowe
No new posts   Sound Valves VTP101i / Pas3 II clone kit? 1skypilot_one2048View latest post Wed Feb 15, 2012 10:44 am
by TMadden
No new posts   KT88 power and output transformers 9CoffeeTones9722View latest post Tue Feb 14, 2012 10:12 am
by Westy56
No new posts   New product - VTA SP14 preamp 12Roy Mottram7099View latest post Tue Feb 14, 2012 10:10 am
by Roy Mottram
No new posts   FM-3 Part(PC-7) 3denny91671540View latest post Tue Feb 14, 2012 9:17 am
by denny9167
No new posts   Driver Board Tubes... 1BillyB1801View latest post Tue Feb 14, 2012 6:17 am
by burnedfingers
No new posts   Dual analog meter mod for ST - 70 2Feistygoat1760View latest post Mon Feb 13, 2012 9:51 am
by Feistygoat
No new posts   PAS 4 question 0StereoGaryo1141View latest post Sat Feb 11, 2012 4:33 pm
by StereoGaryo
No new posts   Almost 1000 members 8captn3101View latest post Sat Feb 11, 2012 4:27 pm
by StereoGaryo
No new posts   my fm-3 woes 7bktheking3529View latest post Sat Feb 11, 2012 2:55 pm
by baddog1946
No new posts   90 degree RCA cables? 2pscottlowe1665View latest post Thu Feb 09, 2012 4:53 pm
by Roy Mottram
No new posts   sp 14 pre amp 2mike drinkwater1585View latest post Wed Feb 08, 2012 8:45 pm
by ruffian
No new posts   The ol' output tube dilemma 3Blitzen1560View latest post Tue Feb 07, 2012 9:14 pm
by frank
No new posts   Worlds largest collection of vintage NIB '70's, '80's audio equipment ? 3Bob Latino6606View latest post Tue Feb 07, 2012 7:00 pm
by mantha3
No new posts   triode switch on st-120/bias pot location 1pscottlowe1546View latest post Tue Feb 07, 2012 7:13 am
by Bob Latino
No new posts   Too much gain......?? 2BillyB1732View latest post Mon Feb 06, 2012 8:55 pm
by BillyB
No new posts   Question for VTA M-70 2SuperB1443View latest post Sun Feb 05, 2012 12:00 pm
by SuperB
No new posts   My 2nd ST70 5kaner1567View latest post Sun Feb 05, 2012 8:45 am
by Bob Latino
No new posts   What is making my 12x4 tube on my Pas2 to overheat?  1bigalttd11233View latest post Sat Feb 04, 2012 2:18 pm
by Roy Mottram
No new posts   Cryo treated tubes 1Dheick3359View latest post Sat Feb 04, 2012 9:53 am
by ArlanB
No new posts   Crossing to the Thermonic Dark Side 11MOR1045View latest post Thu Feb 02, 2012 9:38 am
by Tom
No new posts   Slightly increase size of first cap on stock ST-70??  5SuperB1392View latest post Wed Feb 01, 2012 11:44 pm
by SuperB
No new posts   Pentode instead of UL in ST-70  0SuperB1085View latest post Tue Jan 31, 2012 7:41 am
by SuperB
No new posts   ask for help 7bigsmall1185View latest post Mon Jan 30, 2012 2:09 pm
by aliveatfive
No new posts   PAS 3 Question 5cartek1505View latest post Mon Jan 30, 2012 8:40 am
by Westy56
No new posts   Newbie here 6grizzinca1361View latest post Sat Jan 28, 2012 9:17 pm
by grizzinca
No new posts   ST-120 kit no hum no more 7kevinmi2144View latest post Fri Jan 27, 2012 6:07 pm
by Bob Latino
No new posts   dynaco mark IV 6mirco643648View latest post Thu Jan 26, 2012 7:14 pm
by Roy Mottram
No new posts   M125's Completed. 4Corona2883View latest post Wed Jan 25, 2012 1:32 pm
by Bob Latino
No new posts   5AR4 Rectifier Cmax 3heyraz2156View latest post Tue Jan 24, 2012 11:21 pm
by heyraz
No new posts   new products for 2012 14Roy Mottram4022View latest post Mon Jan 23, 2012 8:42 pm
by Roy Mottram
No new posts   "Hot Mod" Dynaco FM-3 5denny91676518View latest post Mon Jan 23, 2012 6:18 pm
by denny9167
No new posts   Do I need a thermistor? 11Guest2324View latest post Mon Jan 23, 2012 4:05 pm
by Guest
No new posts   Pairing an ST70 with a solid state preamp 1Allang1687View latest post Mon Jan 23, 2012 11:38 am
by Roy Mottram
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