Enclosure not stated

Paia balanced modulator

Category: Ring Mod / Synth· Ring Modulators and Frequency Shifters
Price: see vendor
Tags: Ring Modulators and Frequency Shifters

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Schematic

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Parts list 40 rows

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Check before you build · 2 values the reader of this schematic was not sure of

R27: drawn as a pot with lettered off-board pads; could be a panel control or a trimmer
C7: original drawing reads 33/10V while the typed label says 33u/16V

Ref	Value	Normalized	Type	Notes
Resistors 24
R1	47k	47k		read from the schematic by eye
R2	680k	680k		read from the schematic by eye
R3	680k	680k		read from the schematic by eye
R4	220k	220k		read from the schematic by eye
R5	270	270		read from the schematic by eye
R6	1800	1.8k		read from the schematic by eye
R7	27k	27k		read from the schematic by eye
R8	470	470		read from the schematic by eye
R9	470	470		read from the schematic by eye
R10	27k	27k		read from the schematic by eye
R11	1k	1k		read from the schematic by eye
R12	1k	1k		read from the schematic by eye
R13	27k	27k		read from the schematic by eye
R14	150	150		read from the schematic by eye
R15	150	150		read from the schematic by eye
R16	27k	27k		read from the schematic by eye
R17	470	470		read from the schematic by eye
R18	4k7	4.7k		read from the schematic by eye
R19	3k9	3.9k		read from the schematic by eye
R20	3k9	3.9k		read from the schematic by eye
R21	330	330		read from the schematic by eye
R22	330	330		read from the schematic by eye
R23	100	100		read from the schematic by eye
R26	4k7	4.7k		read from the schematic by eye
Capacitors 8
C1	2u2	2.2u		6V electrolytic; read from the schematic by eye
C2	2u2	2.2u		6V electrolytic; read from the schematic by eye
C3	2u2	2.2u		6V electrolytic; read from the schematic by eye
C4	100pF	100p		read from the schematic by eye
C5	2u2	2.2u		10V electrolytic; read from the schematic by eye
C6	33u	33u		16V electrolytic, supply filter; read from the schematic by eye
C7	33u	33u		16V electrolytic per typed label (drawing shows 10V), supply filter; read from the schematic by eye
C8	100u	100u		10V electrolytic, supply filter; read from the schematic by eye
Diodes 2
D1	Diode	DIODE		no part number given; read from the schematic by eye
D2	Diode	DIODE		no part number given; read from the schematic by eye
ICs 2
IC-1	748	748		op amp; read from the schematic by eye
IC-2	1496	1496		balanced modulator; read from the schematic by eye
Potentiometers 1
R27	5k	5k	Potentiometer	pot wired off-board via pads A/B/C (likely level/gain control); read from the schematic by eye
Trimmers 2
R24	50k	50k		carrier null trimmer to -V; read from the schematic by eye
R25	50k	50k		trimmer to -V; read from the schematic by eye
LEDs 1
LED	LED	LED		no designator beyond LED; no part number given; read from the schematic by eye