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Mu-Tron Bi-phase page 1

Based on the Mu-Tron Bi-Phase· 5 other boards clone it

Category: Phaser· Phasers
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Open the schematic at Experimentalists Anonymous

Schematic

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Parts list 133 rows

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Check before you build · 12 values the reader of this schematic was not sure of

R80: hand-lettered value looks like 29K; read as 22K
R86: 47K, could be 4.7K
R73: 68K, could be 6.8K
R94: 36K 2%, could be 34K
R2: drawn '3 9K', read 3.9K to match R34
C15/C31: drawn '47nP'-like, read 470pF
PM1/PM2: part number read PBT3-12, could be PBT9-12
CR18: label legible only as 'CR8'
R132/R134/R135/R136 and the other adjusters: unnamed, classed as trimmers; some may be panel pots
Z8-Z15 types not printed
S4/S5 pole counts estimated from drawing
R126: smudged designator, could be R76 (clash) or R126

Ref	Value	Normalized	Notes
Resistors 65
R1	390K	390k	read from the schematic by eye
R2	3.9K	3.9k	read from the schematic by eye
R3	390K	390k	read from the schematic by eye
R4	4.7K	4.7k	read from the schematic by eye
R5	4.7K	4.7k	read from the schematic by eye
R6	4.7K	4.7k	read from the schematic by eye
R7	6.2K	6.2k	read from the schematic by eye
R26	4.7K	4.7k	read from the schematic by eye
R27	4.7K	4.7k	read from the schematic by eye
R28	1.3K	1.3k	read from the schematic by eye
R29	4.7K	4.7k	read from the schematic by eye
R30	2.7K	2.7k	read from the schematic by eye
R31	12K	12k	read from the schematic by eye
R32	560	560	read from the schematic by eye
R33	390K	390k	read from the schematic by eye
R34	3.9K	3.9k	read from the schematic by eye
R35	390K	390k	read from the schematic by eye
R36	4.7K	4.7k	read from the schematic by eye
R37	4.7K	4.7k	read from the schematic by eye
R38	4.7K	4.7k	read from the schematic by eye
R39	6.2K	6.2k	read from the schematic by eye
R58	4.7K	4.7k	read from the schematic by eye
R59	4.7K	4.7k	read from the schematic by eye
R60	1.3K	1.3k	read from the schematic by eye
R61	2.7K	2.7k	read from the schematic by eye
R62	4.7K	4.7k	read from the schematic by eye
R63	12K	12k	read from the schematic by eye
R64	560	560	read from the schematic by eye
R65	47K	47k	read from the schematic by eye
R66	39K	39k	2%; read from the schematic by eye
R67	390K	390k	read from the schematic by eye
R68	120K	120k	read from the schematic by eye
R69	33K	33k	read from the schematic by eye
R70	39K	39k	2%; read from the schematic by eye
R71	39K	39k	2%; read from the schematic by eye
R72	33K	33k	read from the schematic by eye
R73	68K	68k	read from the schematic by eye
R74	47K	47k	read from the schematic by eye
R75	47K	47k	read from the schematic by eye
R76	120K	120k	read from the schematic by eye
R77	47K	47k	read from the schematic by eye
R78	1M	1M	read from the schematic by eye
R79	3.9K	3.9k	read from the schematic by eye
R81	39K	39k	2%; read from the schematic by eye
R82	4.7K	4.7k	read from the schematic by eye
R83	39K	39k	2%; read from the schematic by eye
R84	39K	39k	2%; read from the schematic by eye
R85	36K	36k	read from the schematic by eye
R86	47K	47k	read from the schematic by eye
R87	430	430	read from the schematic by eye
R88	560	560	read from the schematic by eye
R89	10K	10k	read from the schematic by eye
R90	47K	47k	read from the schematic by eye
R91	68K	68k	read from the schematic by eye
R92	10K	10k	read from the schematic by eye
R93	120	120	read from the schematic by eye
R94	36K	36k	2%; read from the schematic by eye
R96	560	560	read from the schematic by eye
R104	47K	47k	read from the schematic by eye
R105	560	560	read from the schematic by eye
R106	39K	39k	2%; read from the schematic by eye
R107	39K	39k	2%; read from the schematic by eye
R108	18K	18k	read from the schematic by eye
R118	12	12	read from the schematic by eye
R120	12	12	read from the schematic by eye
Capacitors 28
C1	.047uF	47n	10%; read from the schematic by eye
C2	30pF	30p	read from the schematic by eye
C3	.1uF	100n	100V; read from the schematic by eye
C4	.001uF	1n	read from the schematic by eye
C5	.0033uF	3.3n	read from the schematic by eye
C13	.001uF	1n	read from the schematic by eye
C14	.15uF	150n	read from the schematic by eye
C15	470pF	470p	read from the schematic by eye
C16	10uF	10u	16V; read from the schematic by eye
C17	.047uF	47n	read from the schematic by eye
C18	30pF	30p	read from the schematic by eye
C19	.1uF	100n	read from the schematic by eye
C20	.001uF	1n	read from the schematic by eye
C21	.0033uF	3.3n	read from the schematic by eye
C29	.001uF	1n	read from the schematic by eye
C30	.15uF	150n	read from the schematic by eye
C31	470pF	470p	read from the schematic by eye
C32	10uF	10u	16V; read from the schematic by eye
C33	.47uF	470n	read from the schematic by eye
C34	.47uF	470n	read from the schematic by eye
C35	2.2uF	2.2u	50V; read from the schematic by eye
C36	.47uF	470n	read from the schematic by eye
C47	.01uF	10n	read from the schematic by eye
C48	.01uF	10n	read from the schematic by eye
C49	.01uF	10n	read from the schematic by eye
C50	.01uF	10n	read from the schematic by eye
C51	47uF	47u	electrolytic, +15V rail; read from the schematic by eye
C52	47uF	47u	electrolytic, -15V rail; read from the schematic by eye
Diodes 8
CR1	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
CR2	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
CR3	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
CR4	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
CR5	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
CR6	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
CR7	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
CR8	1N4148	1N4148	per note: diodes are 1N4148; read from the schematic by eye
ICs 8
Z8	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Z9	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Z10	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Z11	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Z12	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Z13	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Z14	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Z15	?	?	dual op amp (8-pin, sections A/B); type not given on this sheet; read from the schematic by eye
Opto 2
PM1	PBT3-12	PBT3-12	photocell/LED module, phase stage A; read from the schematic by eye
PM2	PBT3-12	PBT3-12	photocell/LED module, phase stage B; read from the schematic by eye
Trimmers 13
R80	22K	22k	pedal input gain trim; read from the schematic by eye
R123	10K	10k	stage A, one end N.C.; read from the schematic by eye
R124	10K	10k	stage B, one end N.C.; read from the schematic by eye
R125	10K	10k	read from the schematic by eye
R126	10K	10k	adjuster under R67; label smudged, reads like R?6 (R76 is the 120K resistor), taken as R126 to fit the R123-R138 trimmer series; read from the schematic by eye
R127	10K	10k	one end N.C.; read from the schematic by eye
R128	22K	22k	one end N.C.; read from the schematic by eye
R131	10K	10k	read from the schematic by eye
R132	10K	10k	input A level; read from the schematic by eye
R134	10K	10k	input B level; read from the schematic by eye
R135	25K	25k	main rate; read from the schematic by eye
R136	25K	25k	sine generator; read from the schematic by eye
R138	10K	10k	read from the schematic by eye
Switches 7
S1	SPDT	SPDT	Phasor B Input (A in / B in); read from the schematic by eye
S2	SPDT	SPDT	Rate Control (Main / Ped); read from the schematic by eye
S3	SPDT	SPDT	Shape (Square / Sine); read from the schematic by eye
S4	SPDT	SPDT	Shape (Sine / Sq); read from the schematic by eye
S5	DPDT	DPDT	Sweep (Gen 1 / Gen 2 / Ped); read from the schematic by eye
S6	SPDT	SPDT	Sweep (Gen 1 / Ped); read from the schematic by eye
S7	DPDT	DPDT	Sweep Sync (Norm / Rev); read from the schematic by eye
LEDs 2
CR18	MV5054-1	MV5054-1	LED of photocell driver A; label drawn like 'CR8' (CR8 is also the diode by R88), read as CR18 to pair with CR19; read from the schematic by eye
CR19	MV5054-1	MV5054-1	LED of photocell driver B; read from the schematic by eye

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