• The move to the new server is done. There are some software and database maintenance updates in process. This has us passing the hat around to help out. We appreciate any donations. Seriously, even a dollar helps. The payment page may be found here - https://www.audiokarma.org/support.html

tube amp build

  1. C

    Help assessing mystery amp

    hello all! I just came into this amp that had belonged to my grandfather. he was involved in community emergency preparedness and amateur radio and it appears he purchased the amp in 2001 from an auction. I'll include several photos below. ultimately, my goal is to have a great sounding stereo...
  2. J

    My dad passed and I found a half assembled DIY preamp without schematics. Any help or advice would be great.

    My dad passed three years ago and I'm picking up the pieces. I didn't know that he left me with this in progress preamp until recently. He also has a phono stage (no pictures in this post), but it's even more incomplete. With a family friend (close friend with my dad), we determined that it is...
  3. Kevin Croak

    New to AK. Restoring a 1940 RCA 26x4

    Hello, I am restoring a 1940 RCA 26x4 table radio. I found the site while surfing. My main interest though is Vinyl. I have a really nice Onkyo A/V receiver that cannot handle an analog phono input. So, I am looking for some guidance. Do I build a Tube Amp with phono input or do I build a good...
  4. Codojimbodie

    Converting Hammond Amp to Guitar Amp.

    I recently have acquired a H-AO-70-1F as well as the H-AO-71-1 power supply along with the H-AO-72-0 reverb amp/reverberation unit. I have never messed around with tubes or much electrical components before this but am an avid guitar player and have become intrigued as to how I can turn this...
  5. jaaronb

    Golden Tube Audio - early 300b mono issue - any experience?

    Hey folks - I know this is a longshot... I’m in possession of a pair of what appear to be early production Golden Tube Audio 300b monoblocks. Does anyone have any experience with these? Here’s the issue: one of them has been repaired/modded, and the other hasn’t. A new choke has been added...
  6. Little Wolf

    My Homebuilt "Mid-Century" Style Amp

    Hi All, This is my first AK post. Just wanted to share a recently completed project of mine: a homebuilt transistor-tube hybrid integrated stereo amplifier in the style of an early 1960's household hi-fi stereo set. The set was built as a modular system; with the exception of the power supply...
  7. E

    Are DuMont Tubes any good?

    I'm working on a project that needs a pair of 6DJ8 tubes and I am looking for a good pair for cheap. Whilst looking on eBay, I found some listings for a good price. I hear a lot about Mullard, RCA, General Electric, Sylvania, etc. But is Dumont any good?
  8. gregmcm

    16LS Tube Amp Kit Project Build

    Posting this project for anyone who may be interested to replicate it or use it as a starting point for their own project. I'm a solid state guy myself and this project was completed by my Son. He calls it his "Steampunk Vacuum Tube Amplifier". He's using ELAC B6 speakers. Looks great, sounds...
Back
Top Bottom