ASV Pot & Switch Board issue 1.1 Parts List
Note that this is for issue 1.1 Pot Boards only. Check which issue board you have before
starting to populate your board.
Resistors
1% 0.25W metal film types are recommended for most values. R1, R2, R3 and R4 should be high
precision 0.1% or better.
220R
R27
2K2
R5, R29
22K
R21, R22, R23, R24, R14, R26, R28
22K/0.1%
R1, R2, R3, R4
47K
R9, R10, R15, R17
62K
R12, R13, R20
100K
R8, R16, R18
180K
R6
470K
R7, R11, R19, R25
Capacitors
100nF axial multi-layer ceramic
C1, C7, C8, C5, C15, C3, C12, C16, C11
33pF C0G ceramic 2.5mm
C6, C9
100pF C0G ceramic 2.5mm
C2, C14
2u2, 50V polyester *
C10, C17, C18, C19
2u2, 63V electrolytic **
C4, C13
* WIMA MKS2B042201F00KSSD are recommended due to their smaller height.
** These should be miniature or low profile types to allow them to fit under the panel. However,
ordinary full height parts can be used if they are laid down flat.
Discrete Semiconductors
1N4148 silicon signal diode
D1, D2, D3, D4
BC550 NPN transistor
Q1
BC560 PNP transistor
Q2
LED 5mm green
GATE – solder only when panel is in position
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