Amtron UK854 Fuzz Box

This thing is close to a classic Fuzz Face, but just by looking at the schematic, i seemed like this baby has tons more bass and wilder fuzz control with much higher values than its idol. Simple and small, but some of you Fuzz Afficionadas might find this good thing to build.

I promise not to post any more Fuzz Face derivatives for a while :)

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Edit! Just built this, and as i suspected, the stock value of 27K is not biasing my 2N2222s correctly. Replaced that with 5K1, and now i have bassy vintage fuzz tone :) You might need to find a value to match your transistor instead of that stock value.

Here's rejigged layout with stock 22K resistor replaced by 25K trimpot. That should let you bias your favourite transistors correctly.