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   New Power Cord ST70 Polarity?? 2LBK891View latest post Sat Oct 31, 2020 7:35 pm
by corndog71
No new posts   Dynatuner FM-3 PB-012 vs PA509 Transformer 5Stannie791063View latest post Sat Oct 31, 2020 2:04 am
by peterh
No new posts   Bias help. One side not adjusting to proper voltage. 7gjmess757View latest post Thu Oct 29, 2020 4:37 pm
by gjmess
No new posts   Hooking up two turntables 1Dave_in_Va464View latest post Wed Oct 28, 2020 10:21 pm
by corndog71
No new posts   NOS tubes for my ST-35 5soundz915491View latest post Sat Oct 24, 2020 4:57 pm
by WLT
No new posts   ST-35 fuse blown 20soundz915891View latest post Sat Oct 24, 2020 4:52 pm
by WLT
No new posts   Bias setting for original ST70 18erniegiro4205View latest post Wed Oct 21, 2020 8:12 pm
by erniegiro
No new posts   Bias question 1, 246Skelt2762View latest post Tue Oct 20, 2020 3:52 pm
by Skelt
No new posts   Need opinions on new equipment acquired 11gjmess1042View latest post Tue Oct 20, 2020 10:14 am
by peterh
No new posts   New Octal VTA-70 hiss question 6ttownscott869View latest post Tue Oct 20, 2020 3:20 am
by ttownscott
No new posts   Preamp for ST70 21jeffjmr2598View latest post Mon Oct 19, 2020 10:59 pm
by Roy Mottram
No new posts   TDR Relay with Tube Rectifier 10jimmeq1187View latest post Sun Oct 18, 2020 3:45 pm
by monkuboy
No new posts   VTA70 board mod advantage of increased capacitance 4erniegiro793View latest post Sat Oct 17, 2020 7:14 pm
by erniegiro
No new posts   Blown Fuse on an original Dynaco ST-70 HELP 3danagr933View latest post Sat Oct 10, 2020 2:46 pm
by danagr
No new posts   12ax7 to 12bz7 4Tom1042View latest post Sat Oct 10, 2020 11:07 am
by Tom
No new posts   Tube Replacement: 6550WE with GZ33 or GL KT88 and 5AR4 2dalemurray1057View latest post Fri Oct 09, 2020 12:03 am
by dalemurray
No new posts   Troubleshooting help needed for brand new VTA ST-120 - solved ! 1, 245alanhuth3253View latest post Thu Oct 08, 2020 3:05 pm
by alanhuth
No new posts   Red Plate, V6 - two year old ST-120 with original 6550 8dalemurray781View latest post Wed Oct 07, 2020 10:29 pm
by dalemurray
No new posts   Low voltage power transformer 12gwvenus56932View latest post Mon Oct 05, 2020 4:22 pm
by Wharfcreek
No new posts   How to make your own custom circuit boards with a 3-D printer 0baddog1946494View latest post Sun Oct 04, 2020 12:04 pm
by baddog1946
No new posts   Optimal voltage for our amps 5Mr C890View latest post Fri Oct 02, 2020 5:11 pm
by audio ken
No new posts   VTA ST-70 with 12 or 16 ohm speakers 5audio ken879View latest post Thu Oct 01, 2020 5:16 pm
by Bob Latino
No new posts   VTA / MKIII bias resistor 5wgallupe885View latest post Thu Oct 01, 2020 2:50 pm
by wgallupe
No new posts   Need schematic and layout for Dyna PAS preamp 3case3103506238View latest post Tue Sep 29, 2020 7:57 am
by Bob Latino
No new posts   VTA/PAS4 Build 4stewdan1163View latest post Sun Sep 27, 2020 1:07 pm
by peterh
No new posts   Protect my amp? 6Guest789View latest post Sat Sep 26, 2020 12:38 pm
by solderblob
No new posts   Older VTA ST-120 tubes 9davidness1530View latest post Fri Sep 25, 2020 8:01 am
by Bob Latino
No new posts   Dirty Tube Sockets?!?!?! 8MechEngVic2452View latest post Sun Sep 20, 2020 7:47 pm
by DavidR
No new posts   MKiii Output Transformer 3rudes893View latest post Sat Sep 19, 2020 10:16 pm
by stewdan
No new posts   VTA-70 Tube Amplifier?  19Guest1783View latest post Sat Sep 19, 2020 2:48 am
by peterh
No new posts   Removing Anodization 3Mr C725View latest post Sat Sep 12, 2020 5:05 am
by mijohn
No new posts   Catastrophic failure of auto bias board in M-125 10FearOfMusic2144View latest post Fri Sep 11, 2020 9:40 pm
by aguaazul
No new posts   ST70 diode warning 1, 228jeffjmr3717View latest post Fri Sep 11, 2020 8:25 pm
by jeffjmr
No new posts   Newbee- Lots of Dynaco Questions 4LBK655View latest post Thu Sep 10, 2020 2:38 am
by peterh
No new posts   VTA-ST70 chassis dimensions 2audio ken1103View latest post Tue Sep 08, 2020 12:14 pm
by audio ken
No new posts   Just had a 6550 Red Plate on a VTA-120 8Hops1674View latest post Thu Sep 03, 2020 1:36 am
by peterh
No new posts   Original Dynakit ST70 - Quad cap is vibrating with the music 22Potato_Head1877View latest post Wed Sep 02, 2020 9:17 pm
by Potato_Head
No new posts   Tube temperature 2MarcVBelgium639View latest post Wed Sep 02, 2020 7:47 am
by MarcVBelgium
No new posts   Stereo 70 Repair Diagnostics & Journal 4misterc57751View latest post Fri Aug 28, 2020 9:19 am
by peterh
No new posts   Help on Mods original Dynaco ST-70 with VTA board/PAS3X 9Pigboat2073View latest post Mon Aug 24, 2020 2:02 pm
by Pigboat
No new posts   Voltage regulator vs VARIC vs Power Conditioner 1, 228Guest3919View latest post Mon Aug 24, 2020 1:50 pm
by Hops
No new posts   vta st 70 octal voltage chart 4kost984View latest post Sun Aug 23, 2020 2:20 pm
by alanhuth
No new posts   ST-70 Tube Rectifier Duplication 1franksr593View latest post Sun Aug 23, 2020 2:27 am
by peterh
No new posts   Canadian company has acquired the "Dynaco" trade name ? 1, 2, ... , 4, 5114Bob Latino12432View latest post Sun Aug 23, 2020 2:23 am
by peterh
No new posts   M-125s are nice 3Tom1179View latest post Fri Aug 21, 2020 11:13 am
by Tom
No new posts   I rebuilt my ST35 with FPE - with mistakes. 11corndog711455View latest post Mon Aug 17, 2020 9:55 pm
by Wharfcreek
No new posts   Looking for more top end sparkle 23eminence19631051View latest post Mon Aug 17, 2020 5:14 pm
by corndog71
No new posts   Long Speaker Wires/Short Interconnects or Long Interconnects/Short Speaker Wires? 3knotscott720View latest post Mon Aug 17, 2020 1:44 pm
by OneyedK
No new posts   My first kit ever. My VTA ST-120 1, 226Rich7340View latest post Sun Aug 16, 2020 1:26 am
by Rich
No new posts   A observation I made 8eminence19631067View latest post Tue Aug 11, 2020 12:59 pm
by Bob Latino
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