The Dynaco Tube Audio Forum

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


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No new posts  Announcement:  PAS3 preamp upgrades & modifications 0tubes4hifi3788View latest post on Tue Apr 21, 2015 5:20 pm
by tubes4hifi
No new posts  Sticky:  Differences between the original ST-70 and my VTA ST-70 ? 7RockyAM9329View latest post Yesterday at 7:53 pm
by Bob Latino
No new posts  Sticky:  Place FOR SALE or WANTED audio related items in this STICKY thread 13Bob Latino26851View latest post on Tue Jun 20, 2017 6:48 pm
by chefla
No new posts  Sticky:  HOW TO POST A PHOTO on the Dynaco Tube Audio Forum 13Bob Latino6376View latest post on Fri Jun 02, 2017 10:16 am
by Bob Latino
No new posts  Sticky:  VTA ST-70 assembly video and new bias recommendations for all VTA amps 8Bob Latino2850View latest post on Thu Mar 30, 2017 2:43 pm
by Peter W.
No new posts  Sticky:  SAFETY - read me! 2tubes4hifi3399View latest post on Thu Mar 02, 2017 11:54 am
by Peter W.
No new posts  Sticky:  Dynaco ST-70 PC-3 driver board parts layout - photo ... 1, 236Bob Latino11497View latest post on Thu Feb 23, 2017 8:50 pm
by Bob Latino
No new posts  Sticky:  HDTV free calibration 2tubes4hifi645View latest post on Sun Feb 19, 2017 5:59 pm
by sKiZo
No new posts  Sticky:  tube rectifier diode mod 1, 2, 3, 475tubes4hifi13739View latest post on Sun Dec 04, 2016 2:55 pm
by ejc
No new posts  Sticky:  Dynaco lore - Differences between factory wired and kit built ST-70 - photos .. 1, 230Bob Latino10467View latest post on Tue Oct 18, 2016 10:32 am
by audiofreak1954
No new posts  Sticky:  PAS3 RIAA mod 14tubes4hifi4912View latest post on Wed Aug 10, 2016 2:13 pm
by Peter W.
No new posts  Sticky:  fully modified PAS3 - or a new SP12 ?? 5tubes4hifi4865View latest post on Sat Jul 09, 2016 10:08 pm
by jimmytamp
No new posts  Sticky:  Rebuild your Dynaco ST-35 power amp - photos .. 20Bob Latino11113View latest post on Sat Apr 30, 2016 12:16 pm
by retepnommel
No new posts  Sticky:  Rebuilding your Dynaco ST-70 videos 0Bob Latino1845View latest post on Tue Oct 27, 2015 1:18 pm
by Bob Latino
No new posts  Sticky:  OCTAL DRIVER BOARD - POWER TRANSFORMER 0tubes4hifi2396View latest post on Wed Sep 16, 2015 2:24 pm
by tubes4hifi
No new posts  Sticky:  tone controls? yes - or no ? 13tubes4hifi9212View latest post on Sat Sep 12, 2015 7:23 pm
by Dave_in_Va
No new posts  Sticky:  Board layouts for the PC-5 line stage and PC-6 phono board on the PAS preamps - photos ... 1, 229Bob Latino10477View latest post on Fri Apr 03, 2015 10:57 pm
by tubes4hifi
No new posts  Sticky:  SP14 & PH16 parts kit ID photos 0tubes4hifi2259View latest post on Fri Apr 03, 2015 1:57 am
by tubes4hifi
No new posts  Sticky:  Run your Dynaco ST-70, Mark II, Mark III or Mark IV in TRIODE MODE - photo 1, 234Bob Latino11191View latest post on Wed Mar 11, 2015 9:59 am
by cheehpogi
No new posts  Sticky:  32 FREE Dynaco tube and solid state assembly manuals available for download - links inside 4Bob Latino10122View latest post on Wed Dec 11, 2013 6:44 pm
by peterh
This topic is locked: you cannot edit posts or make replies.  Sticky:  Quick troubleshooting guide for Dynaco tube amps 0Bob Latino10069View latest post on Thu Feb 11, 2010 2:03 pm
by Bob Latino
No new posts  Sticky:  Dynaco ST-70 original driver boards - early and later versions - photos ... 1Bob Latino8018View latest post on Tue May 26, 2009 10:40 pm
by fortherecord
No new posts  Sticky:  Post up your photos of your Dynaco gear at the link inside 0Bob Latino9239View latest post on Wed Mar 18, 2009 5:13 pm
by Bob Latino
No new posts  Sticky:  Free Dynaco tube pictorials 0Bob Latino10426View latest post on Sun Nov 30, 2008 5:56 pm
by Bob Latino
No new posts  Sticky:  Free Dynaco tube schematics 0Bob Latino11010View latest post on Sun Nov 30, 2008 5:35 pm
by Bob Latino
No new posts   Breaking In (or Bad) 1, 240deepee991602View latest post Yesterday at 2:32 pm
by deepee99
No new posts   PAS3 Passive conversion?  5jerkbag147View latest post Yesterday at 12:13 pm
by daveshel
No new posts   VTA ST70 power transformer heat  2rymi119View latest post on Mon Jun 26, 2017 9:55 pm
by j beede
No new posts   I wanna resurrect the phase discussion "VTA ST-120 phase?" thread Bob shut down 1, 230deepee99526View latest post on Mon Jun 26, 2017 8:33 pm
by j beede
No new posts   There's a good time to use the Weber WS-1 SS rectifier... 10Kentley308View latest post on Mon Jun 26, 2017 4:36 pm
by arledgsc
No new posts   I tried a set of Gold Lion KT66 tubes????? 17opti-mos pat10100View latest post on Sun Jun 25, 2017 4:12 pm
by musicgeorge11
No new posts    M125 monoblock Tube Rolling 22jfine419View latest post on Sun Jun 25, 2017 2:55 pm
by LeGrace
No new posts   Thermal event observed, need help 1, 2, 369LeGrace1935View latest post on Sat Jun 24, 2017 2:09 pm
by jfine
No new posts   VTA ST-120 phase? 1, 238Rich1365View latest post on Sat Jun 24, 2017 8:28 am
by Bob Latino
No new posts   Dynaco MK3 Low output!!!! 1, 235PeppaPig769View latest post on Fri Jun 23, 2017 8:51 pm
by PeppaPig
No new posts   OPT Choices for ST70 4gener8r148View latest post on Fri Jun 23, 2017 12:02 pm
by Peter W.
No new posts   Another new member.  9Ed Chambers255View latest post on Fri Jun 23, 2017 11:53 am
by GP49
No new posts   Pilot SP-264 0Mandopicker100View latest post on Wed Jun 21, 2017 8:06 pm
by Mandopicker
No new posts   Power Transformer Options - ST-70 1, 235Aljaheejus6672View latest post on Wed Jun 21, 2017 12:13 pm
by Bob Latino
No new posts   VTA Board Install Questions 0RevoxA77101View latest post on Mon Jun 19, 2017 6:39 pm
by RevoxA77
No new posts   ST-70 driver board ID? 4Rickenbackerman281View latest post on Mon Jun 19, 2017 2:58 pm
by Rickenbackerman
No new posts   power conditioning 12rymi470View latest post on Sat Jun 17, 2017 9:06 am
by arledgsc
No new posts   Mono/stereo PAS control 2Pillo69220View latest post on Fri Jun 16, 2017 4:15 am
by Pillo69
No new posts   Ultravalve for $2000 9j beede3578View latest post on Thu Jun 15, 2017 9:04 pm
by Bob Latino
No new posts   Need some help with some SCA 35 mods 145scratches187View latest post on Thu Jun 15, 2017 7:43 pm
by tubes4hifi
No new posts   PAS-2 Voltage Woes after Z-Mod and Upgraded Power Supply Board 5deathman68600View latest post on Thu Jun 15, 2017 7:34 pm
by tubes4hifi
No new posts   VTAST70, grounding, phono stage question  1rymi181View latest post on Thu Jun 15, 2017 7:28 pm
by tubes4hifi
No new posts   Tubes4hifi driver boards 4hogwylde09359View latest post on Thu Jun 15, 2017 7:13 pm
by tubes4hifi
No new posts   Selector Switch Source  2Peter W.219View latest post on Thu Jun 15, 2017 6:42 pm
by Peter W.
No new posts   For those of us with some form of digitalis, an informative read 1deepee99241View latest post on Mon Jun 12, 2017 5:53 pm
by Dogstar
No new posts   Black Treasure CV181-Z in VTA ST120 2eickmewg248View latest post on Mon Jun 12, 2017 2:20 pm
by WntrMute2
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