• Nickname: vvelt
  • Name: Victor Velt
  • Country: United States
  • Projects: 4
  • Comments: 5

Recent Comments

  • Get*Set*Go
  • 6 December 2017 at 09:46AM
  • The 6B4G's are like a 2A3's, but the filaments are 6v and they have an octal base. The ones I have are NOS Sylvania, and Sovtek still makes them. This amp provides DC to the filaments. Also, I’m with you on using some color on top, makes things more interesting.
  • The Little Kicker
  • 18 September 2017 at 09:12AM
  • Here is a link to the pcb. The one I just bought is colored blue but is otherwise the same as pictured.
  • The Little Kicker
  • 14 July 2017 at 04:33PM
  • Hi, I don't have a BOM per se. Some parts I had on hand but I spent about $150 on new parts and tubes, close to $100 on the chassis, and just over $100 for the OPT's. It always seems to add up quickly.
  • The Little Kicker
  • 15 June 2017 at 04:16PM
  • Hi, the schematic came from this forum thread:

    It's the revised circuit for the 6BM8 down the page. I made up the CLCRC supply and added 33k from the OPT's to pin 8 (cathode). This helped improve the sound of these transformers. I first tried the amp using a variety of OPT's without the additional feedback and it performed great depending on the quality of the iron.


Get*Set*Go from Get*Set*Go from
  • Item: SET tube power amplifier
  • Type: Get*Set*Go from
  • Posted: 1 December 2017
  • Builder: vvelt
  • Country: United States
  • Comments: 2
  • Item: Stereo Power Amp
  • Type: 6BM8/PCL82 SEP
  • Posted: 14 June 2017
  • Builder: vvelt
  • Country: United States
  • Comments: 6
  • Item: Stereo power amplifier
  • Type: EL34 SEUL
  • Posted: 11 August 2016
  • Builder: vvelt
  • Country: United States
  • Comments: 1
Duece 13EM7 Duece 13EM7
  • Item: 13EM7 SET
  • Type: Duece 13EM7
  • Posted: 22 August 2015
  • Builder: vvelt
  • Country: United States
  • Comments: 0