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  Announcement:  dual rectifiers for ST120 & ST70 amps 1, 230Roy Mottram3817View latest post Sat Dec 02, 2023 6:27 pm
by GAflubug
No new posts  Announcement:  Tubes IN STOCK - Tung-Sol, Gold Lion, Electro-Harmonix, Svetlana, Sovtek, JJ 2Dan W769View latest post Thu Sep 07, 2023 9:00 pm
by Dan W
No new posts  Announcement:  blown tubes 0Roy Mottram1281View latest post Thu Jun 08, 2023 7:51 pm
by Roy Mottram
No new posts  Sticky:  Place FOR SALE or WANTED audio related items in this STICKY thread 7Bob Latino40475View latest post Tue Feb 20, 2024 12:56 pm
by ngoyette
No new posts  Sticky:  tube rectifier "yellow sheet" diode mod 1, 2, 3, 498Roy Mottram27641View latest post Sat Feb 17, 2024 11:41 am
by Seamus
No new posts  Sticky:  tone controls? yes - or no ? 1, 241Roy Mottram13682View latest post Fri Dec 01, 2023 3:05 am
by Wharfcreek
No new posts  Sticky:  The tune of the day 1, 2, ... , 24, 25611deepee9920834View latest post Sat Feb 25, 2023 12:34 pm
by Doug_P
No new posts  Sticky:  PAS3 RIAA mod 17Roy Mottram10898View latest post Mon Jan 23, 2023 7:26 am
by carcy
No new posts  Sticky:  Board layouts for the PC-5 line stage and PC-6 phono board on the PAS preamps - photos ... 1, 231Bob Latino13475View latest post Fri Oct 08, 2021 8:50 pm
by Roy Mottram
No new posts  Sticky:  VTA ST-70, VTA ST-120 and VTA M-125 amplifier information 19Bob Latino14180View latest post Sat Jul 10, 2021 6:06 pm
by Bob Latino
No new posts  Sticky:  Run your Dynaco ST-70, Mark II, Mark III or Mark IV in TRIODE MODE - photo 1, 241Bob Latino14883View latest post Mon Jul 05, 2021 11:59 am
by jrethorst
No new posts  Sticky:  Dynaco lore - Differences between factory wired and kit built ST-70 - photos .. 1, 234Bob Latino15841View latest post Fri May 14, 2021 11:18 am
by traderthom
This topic is locked: you cannot edit posts or make replies.  Sticky:  info for posting on this forum 2Roy Mottram1656View latest post Sat Aug 24, 2019 10:04 pm
by Roy Mottram
No new posts  Sticky:  Dynaco ST-70 PC-3 driver board parts layout - photo ... 1, 237Bob Latino16611View latest post Mon Jun 25, 2018 1:38 pm
by dmagazz
No new posts  Sticky:  latest 2021 SP14 photos 0Roy Mottram5214View latest post Thu Feb 22, 2018 3:22 pm
by Roy Mottram
No new posts  Sticky:  Differences between the original ST-70 and my VTA ST-70 ? 6RockyAM12305View latest post Tue Jun 27, 2017 7:53 pm
by Bob Latino
No new posts  Sticky:  HOW TO POST A PHOTO on the Dynaco Tube Audio Forum 13Bob Latino9823View latest post Fri Jun 02, 2017 10:16 am
by Bob Latino
No new posts  Sticky:  Rebuild your Dynaco ST-35 power amp - photos .. 20Bob Latino13250View latest post Sat Apr 30, 2016 12:16 pm
by retepnommel
No new posts  Sticky:  Rebuilding your Dynaco ST-70 videos 0Bob Latino7239View latest post Tue Oct 27, 2015 1:18 pm
by Bob Latino
No new posts  Sticky:  32 FREE Dynaco tube and solid state assembly manuals available for download - links inside 4Bob Latino11076View latest post 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 Latino12128View latest post Thu Feb 11, 2010 2:03 pm
by Bob Latino
No new posts  Sticky:  Post up your photos of your Dynaco or VTA gear at the link inside 0Bob Latino10995View latest post Wed Mar 18, 2009 5:13 pm
by Bob Latino
No new posts  Sticky:  Free Dynaco tube pictorials and schematics 0Bob Latino12057View latest post Sun Nov 30, 2008 5:56 pm
by Bob Latino
No new posts   New SP14 build. Really noisy! 12perkri487View latest post Yesterday at 9:40 pm
by perkri
No new posts   Scratchy Noise in VTA ST-120 Amplifier 0Hops47View latest post Yesterday at 8:11 pm
by Hops
No new posts   ST-70 failing DBT with power tube installed 13botto396View latest post Yesterday at 4:34 pm
by botto
No new posts   V2 bias issue  1Ernestwithanage47View latest post Yesterday at 12:09 pm
by peterh
No new posts   V2 bias issue  0Ernestwithanage60View latest post Yesterday at 11:22 am
by Ernestwithanage
No new posts   Surging hum followed by crackle, then repeats - both channels 2aichholzer122View latest post Fri Mar 15, 2024 10:43 am
by aichholzer
No new posts   VTA ST-120... blown fuse. Quad cap resistor blown? Bigger problems? 20ChetJettison841View latest post Thu Mar 14, 2024 10:52 pm
by Rec
No new posts   .45v bias ok for KT120 tubes in ST-120 amp? 1ChetJettison150View latest post Sun Mar 10, 2024 10:00 am
by Bob Latino
No new posts   Dynaco pas 3x, right and left channel issue 4Johnyblack257View latest post Mon Feb 26, 2024 1:59 pm
by Johnyblack
No new posts   Need some help with VTA ST-120 issues 19krcrisp717View latest post Mon Feb 26, 2024 10:31 am
by smoorenc
No new posts   Necessity of a variac with MKIII Transformer(s)? 3snip73600View latest post Sat Feb 17, 2024 12:47 pm
by rebellovw
No new posts   VTA M-125 Dual Rectifier Tube Mod? 1198indypacer1011View latest post Sat Feb 17, 2024 12:36 pm
by rebellovw
No new posts   Edcor on ST-35 3ESL-57398View latest post Fri Feb 16, 2024 4:08 pm
by ESL-57
No new posts   Reduced left channel output - no buzz or humming 4photoenergy440View latest post Fri Feb 16, 2024 1:11 pm
by Seamus
No new posts   New Member, New ST-70 3Antarctica380View latest post Fri Feb 16, 2024 12:42 pm
by Seamus
No new posts   PAS 3 -- sound is too bright 15Calypte566View latest post Sun Feb 11, 2024 7:38 am
by Calypte
No new posts   Digital Bias Meters 4jwb474625View latest post Mon Feb 05, 2024 6:01 am
by jwb474
No new posts   Hum from new VTA120 newly built kit 11NewToTubes2101215View latest post Sat Feb 03, 2024 1:06 am
by NewToTubes210
No new posts   Dynaco C-354 chokes in stock 0Dan W529View latest post Sat Feb 03, 2024 12:19 am
by Dan W
No new posts   Dynaco ST-35 new populated boards on EBay? 2misterc57352View latest post Fri Feb 02, 2024 3:31 pm
by misterc57
No new posts   ST-120 LM334 burnout 8grosen1357View latest post Wed Jan 31, 2024 9:16 am
by jwb474
No new posts   BIAS problem on one tube (KT90) 3MarcVBelgium332View latest post Mon Jan 22, 2024 1:07 pm
by Bob Latino
No new posts   Remember This Book 3jwb474701View latest post Sat Jan 20, 2024 11:40 pm
by jwb474
No new posts   New to me ST120 blown 6550 & 5AR4 3batman7349372View latest post Sat Jan 20, 2024 8:28 pm
by batman7349
No new posts   Bi-Amping mismatch amp 7denis14452View latest post Sat Jan 20, 2024 4:14 pm
by knotscott
No new posts   Mono TCLA Preamp & 78 Phonostage In PAM Chassis 0jwb474221View latest post Sun Jan 14, 2024 5:07 am
by jwb474
No new posts   Vu meters  0Ernestwithanage218View latest post Sun Jan 14, 2024 2:22 am
by Ernestwithanage
No new posts   Which preamp to buy to use with my ST70? 9Hardwhistle575View latest post Mon Jan 08, 2024 10:56 pm
by Hardwhistle
No new posts   Power Cable Upgrade 3VTHokie83602View latest post Mon Jan 08, 2024 3:37 pm
by Bob Latino
No new posts   ST70 power transformer 5itrfguy731View latest post Fri Jan 05, 2024 10:17 pm
by Cubdriver
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