Acupulco Gold/Tufnel-ish Amp Build

[D_Ex_Patria]

Thought I'd share a build I finally gave an enclosure. I don't think I'll ever work with tin lunchboxes ever again, the metal tears and gets ragged instead of punching through cleanly.




The circuit itself is basically an Acupulco Gold/Tufnel with some modifications. The first LM386 in the signal chain has the bass-boost mod applied to it, which rolls off some treble, and a gain pot. Between the two stages is a BMP tonestack. The final LM386 is rigged with a suitable output cap for an 8Ohm speaker plus a zobel network.

I recorded a dirty demo below with my phone mic.

https://soundcloud.com/hogfiend/lunchbox-of-doom-demo

The circuit was a good experiment, but I discovered after finishing it that the bass boost mod I did to the first amp stage probably limited the range of my gain pot. Also, the high side of the tone stack does get a little shrill with the inbuilt speaker, but I have yet to really test it on a 1x12 (I will soon. Updates and maybe a proper mic'ed demo to follow.)

[thermionix]

I see no 11s, what makes it Tufnel-ish?

[induction]

I see no 11s, what makes it Tufnel-ish?

http://www.diystompboxes.com/smfforum/index.php?topic=72308.0