New Single End Amp

[Littlewyan]

Hello Everyone

Today I started looking at building myself a very small Valve Amp that would give me good tone and distortion, but obviously at a low volume (well lowish ). Anyway I had a look at AX84 and looked at their P1 Extreme. I knew I wanted to use a 6V6 in the Output Stage and a 12AX7 in the Pre Amp so this was a good start.

So I played around with their design and come up with what I've attached. Now pretty much the only things I've changed are moving the Tone Stack to after the first triode, changing the bias of the 2nd triode and lowering the B+ to 250V (should give me 4.5W according to the 6V6 Datasheet).

So what do you guys think? I'm hoping that this will give me nice power amp distortion, however the original design looks like its based on a mix of Pre Amp and Power Amp distortion so not sure if I'll get much distortion until I really turn it up. Also I've never touched a single end amp in my life so I don't know how hard to drive it or anything!

[KellyBass]

Sorry, double post.

[KellyBass]

I think you picked a fun project to play with...and a great learning platform! I had (and still have) tons of fun with single ended amps. I learned a LOT from doing exactly what you're doing...playing around with bias and voltage. In a single ended design, it's especially interesting to swing the power tube more or less into true class A. I really recommend the valve wizard website for some great information on single ended designs.