I built this guy a few years back, and just finished updating to some of the new specs. Transistors are OC141, CV7112 (military OC140) NPN germanium, and MPSA13 on the output. Q1 is 136 hFE, .04 leakage, Q2 is 65 hFE, 0 leakage. I left the gain pot at 1kB rather than a reverse log, because the germaniums have so much useful low gain clipping available.
The rest of the guts are a whole bunch of carbon comps and audio caps because why not. Also, it is DEAD. SILENT. Awesome noise rejection.
Enclosure is poison apple red from PPP, and the caption is Portuguese for "singing tone", though my Brazilian friends laugh about it, because they don't actually use adjectives that way ;)
(https://c6.staticflickr.com/6/5651/30148799493_f259fada30_k.jpg)
(https://c6.staticflickr.com/6/5517/30784461405_a78141154d_k.jpg)
(https://c6.staticflickr.com/6/5543/30784461725_59f0cb6db6_k.jpg)
(https://c2.staticflickr.com/6/5618/30148799753_cc45c07bef_k.jpg)
A first for me: crummy clips! Enjoy!
Intro and EQ (https://www.dropbox.com/s/h33p0v77lnw87wx/Singing%20Tone%20EQ.mp3?dl=0)
Gain and Boost (https://www.dropbox.com/s/w85uqo3kci3e846/Singing%20Tone%20Gain%20and%20Boost.mp3?dl=0)
Looks and sounds really good. Please don't put me on the path of carbon comps and mojo comps though, cuz that demo could convince me...
Good job. I really dig the sparkle paint and the mojo under the hood.