HELIODOR AMP OVERDRIVE
4
PARTS LIST, CONT.
PART VALUE
TYPE
NOTES
R33
1k
Metal film resistor, 1/4W
R34
10k
Metal film resistor, 1/4W
R35
10k
Metal film resistor, 1/4W
RPD
2M2
Metal film resistor, 1/4W
Input pulldown resistor. Can be as low as 1M.
LEDR
4k7
Metal film resistor, 1/4W
LED current-limiting resistor. Adjust value to change LED brightness.
C1
47n
Film capacitor, 7.2 x 2.5mm
C2
18n
Film capacitor, 7.2 x 2.5mm
C3
1uF
Film capacitor, 7.2 x 3.5mm
C4
10n
Film capacitor, 7.2 x 2.5mm
C5
56n
Film capacitor, 7.2 x 2.5mm
C6
1uF
Film capacitor, 7.2 x 3.5mm
C7
470n
Film capacitor, 7.2 x 3mm
C8
47pF
MLCC capacitor, NP0/C0G
Not in original unit. See build notes.
C9
56n
Film capacitor, 7.2 x 2.5mm
C10
1n2
Film capacitor, 7.2 x 2.5mm
C11
470n
Film capacitor, 7.2 x 3mm
C12
10uF
Electrolytic capacitor, 5mm
C13
12n
Film capacitor, 7.2 x 2.5mm
C14
1uF
Film capacitor, 7.2 x 3.5mm
C15
10uF
Electrolytic capacitor, 5mm
C16
6n8
Film capacitor, 7.2 x 2.5mm
C17
18n
Film capacitor, 7.2 x 2.5mm
C18
33n
Film capacitor, 7.2 x 2.5mm
C19
22n
Film capacitor, 7.2 x 2.5mm
C20
1uF
Film capacitor, 7.2 x 3.5mm
C21
1uF
Film capacitor, 7.2 x 3.5mm
C22
47uF
Electrolytic capacitor, 5mm
Reference voltage filter capacitor.
C23
100uF
Electrolytic capacitor, 6.3mm
Power supply filter capacitor.
C24
100n
MLCC capacitor, X7R
Power supply filter capacitor.
D1
1N5817
Schottky diode, DO-41
D2
1N914
Fast-switching diode, DO-35
D3
1N914
Fast-switching diode, DO-35
D4
1N914
Fast-switching diode, DO-35
D5
1N914
Fast-switching diode, DO-35
D6
1N914
Fast-switching diode, DO-35
D7
1N914
Fast-switching diode, DO-35