Hi all, I have a made handful of tube guitar amps and now have my sights on a tube stereo project.
Are there schematics available online and where does one find them?
I don't need a kit, I can source just about everything.
Do you have suggestions for something excellent I could look into for DIY?
I realize there are differences in Class A vs A/B and tube types, etc. 300B or KT88 maybe? Those seem to be in high regard for power anyway.
Thanks for your help!
Are there schematics available online and where does one find them?
I don't need a kit, I can source just about everything.
Do you have suggestions for something excellent I could look into for DIY?
I realize there are differences in Class A vs A/B and tube types, etc. 300B or KT88 maybe? Those seem to be in high regard for power anyway.
Thanks for your help!
Mil Spec Sylvania CHS 7C5 tube triode connected (same oval plate as expensive 6L6G) in PPP for 12 watts out. The 7C5 sounded better than PP 45s. More lively sound. I would use tubes at 250 volts and -12 volts bias. Use Dynaco ST-70 audio transformers- best measured transformer ever. Look at plate curve in triode connected.
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With 7C5 triode use 6P5 as cathodyne phase splitter and preamp. Same -12 bias and 250 volts plate as 7C5 tubes. Plate curves here:
Note- Triode Electronics sells ST-70 audio transformer clones.
Note- Triode Electronics sells ST-70 audio transformer clones.
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I recommend VTA70 from tubes4hifi.com
Excellent kit, excellent support and a fine amp
Excellent kit, excellent support and a fine amp
I used to rebuild and upgrade amps. I had a new VT-70 come in and owner stated did not sound good. There was nothing I could do make it sound much better. I blame the audio transformers. DO NOT buy this kit.
I have a list of projects I have built at my website, they have schematics, BOMs and build videos to help you complete them. They all have been vetted/tuned and others besides myself have built most of these and agree they sound good. You can pick whatever fits your budget, just throwing this option out there!
https://www.skunkiedesigns.com/projects
https://www.skunkiedesigns.com/projects
Do you have a budget?
How much power do you need?
What speakers are you using, and how loud do you listen?
Do you already have a tube stash, related to guitar amps etc.?
jeff
Without requirements, or even some idea of what you have in mind, it's hard to make a recommendation. You could try one of the ones at this link: CascadeTubes
Or if more power is on your menu there are some good PP designs posted on the web. Why not tell us what you have in mind? That would help you get some recommendations that are closer to your intent.
Or if more power is on your menu there are some good PP designs posted on the web. Why not tell us what you have in mind? That would help you get some recommendations that are closer to your intent.