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BUILD NOTES

Clipping diodes

The Heavyhand uses BA282 diodes, which clip at a slightly higher threshold than standard silicon diodes

such as 1N914 (approximately 0.82V compared to 0.7V). These diodes are out of production and hard to

find in the old-stuck market.

Now, the closest option is the BAS33. These clip at around 0.8V, still significantly higher than the 1N914

and only slightly lower than the BA282. We've compared the curves on a Peak DCA75 and confirmed

that they closely match the BA282 across the current test range.

The only problem is that the BAS33 went end-of-life in early 2022. Availability is still high, but

eventually they'll join the ranks of the others.

Body potentiometer

The Body pot is 150kC in the original, which is an odd value (though not impossible to find). R7 has been

added as a tapering resistor to approximate the 150kC value using a 250kC pot. If you use 250kC, then

use 390k for R7. The curve will be slightly different, but not drastic.

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