Frequency Central More VCAs, Build Documentation

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Frequency central
Build documentation for:
More vca
s
A compact pair of ARP influenced VCAs.
Key to PCB screen print:
p:
This signifies PNP BC557 transistors. Note the correct pinout as shown by the half circles.
The PCB shows the correct orientation for BC557. Other transistor types can be used (eg
2N3906), but please observe the correct pinout. Please observe the correct polarity of the
electrolytic capacitors.
Bill of Materials
470R x 4
1K x 2
4K7 x 2
12K x 2
22K x 2
27K x 2
100K x 2
1M x 2
All resistors ¼ watt
metal film.
1
0uF x 4
47uF x 2
LM13700 x 1
BC557 x 2
16 pin IC socket
Alpha 9mm B100K
100K trimmer x 2
Box header x 1
Male header x 1
Female header x 1
3.5mm socket x 6