"Small" run of fuzz faces or 1 knob fuzzes?
That was 500-Ohm fig bought, not 500 kilo-Ohm...
Should I get some 500-Ohm pots?
@Harry Klippton
A lot of newer clones of older circuits swap out the original 1458 in a circuit for a more modern commonly available IC, so when searching your HD's build-docs (I collect them, too!) the 1458 may not come up.
You could use the 1458 for a dual Dist+/250 build such as the Grey Channel or a Black & Tan Ross or ... make a lot of Silverfoxes...
For example:
The info's on my defunkt computer (*hopefully getting the HD back soon), but IIRC I had some BMPOA PCBs that used two 4558 chips (dual op-amp), whereas the original EHX units used a single 4558 and a 741 (single op-amp). I ran across some very opinionated comments online (where else?) about how EHX BMPOA clones won't sound right unless you have the 741, other single op-amps won't sound "right". Well I couldn't care less if it sounds like an original BMPOA or not, so long as it sounds good to my ears, nonetheless I wanted to hear for myself if there was a difference between the all 4558 path and the mixed 4558/741 (ie 4558/1458) signal path.
The BMPOA PCBs I have still use 3 op-amps in the main signal path, the leftover op-amp in the second 4558 just "filters" power, so it's not even in the signal path. I did some digging and found that the 1458 is the dual version of the 741 — finally I can build those IC Muff PCBs with the correct type of 4558/741 combination. When I can get to them. In the build queue, way back in the backlog...
