This week's Fuzz Friday layout happens to be the 500th layout on the blog! So for #500 it has to be something cool, so here's a really unique fuzz from Spaceman Effects–the Gemini III Dual Fuzz Generator. As the name implies, it has 2 sides: silicon and germanium. The Blend knob pans between the 2, and each side has a 3-way gain switch. I've laid it out for board mounted pots for a 125B with top mounted jacks.
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It's a good idea to experiment with the transistors, especially on the germanium side. Here's some good alternatives from digi2t who traced it over on DIYSB:
Q1: Russian MP20B (hFE: 80-85)
Q2: Russian GT404 (hFE: 120-130)
Q3: Russian GT402 (hFE: 100-115)
Q5: BC109B or 2N3700 (hFE: mid 200s)
Q7: 2N5088
Also the 1nF cap near the input apparently really needs to be a polystyrene. YMMV