Enclosure not stated · 6 knobs

Character Series 4in1

Based on the Tech21 Character Series 4in1

Category: Other
Controls: Character · Drive · Level · Mid · High · Low
Price: see vendorin stock
Tags: Tech21, Tech21, British, amp simulator, Blonde, California, Liverpool

Order the board at PCBWay Schematic image (CC BY-SA)

From the vendor

Tech21 - Character Series 4in1

-Blonde -British -California -Liverpool

Schematic

The schematic image is on the project page. Open it at PCBWay.

Parts list 55 rows

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Variant

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

D1/D2: drawn with a zener-style bar; table gives only 3V3/2V7, read as zener voltages
W100k (California pots): table says 100kW, kept as W taper

Ref	Value	Normalized	Type	Notes
Resistors 16
×1	33	33		read from the schematic by eye
×3	1k	1k		read from the schematic by eye
×9	3k3	3.3k		read from the schematic by eye
×1	4k7	4.7k		LED resistor; read from the schematic by eye
×5	10k	10k		read from the schematic by eye
×1	22k	22k		read from the schematic by eye
×4	33k	33k		read from the schematic by eye
×6	100k	100k		read from the schematic by eye
×3	220k	220k		read from the schematic by eye
×4	1M	1M		read from the schematic by eye
×1	10k	10k		R1; read from the schematic by eye
×1	22k	22k		R2; read from the schematic by eye
×1	100k	100k		R3; read from the schematic by eye
×1	100k	100k		R4; read from the schematic by eye
×1	15k	15k		R5; read from the schematic by eye
×1	100k	100k		R6; read from the schematic by eye
Capacitors 27
×1	470p	470p		read from the schematic by eye
×2	1n	1n		read from the schematic by eye
×1	4n7	4.7n		read from the schematic by eye
×1	10n	10n		read from the schematic by eye
×3	22n	22n		read from the schematic by eye
×3	47n	47n		read from the schematic by eye
×1	100n	100n		read from the schematic by eye
×2	1u	1u		read from the schematic by eye
×2	47u	47u		electrolytic; read from the schematic by eye
×1	18n	18n		C1; read from the schematic by eye
×1	47n	47n		C2; read from the schematic by eye
×1	2u2	2.2u		C3 electrolytic; read from the schematic by eye
×1	10n	10n		C4; read from the schematic by eye
×1	10n	10n		C5; read from the schematic by eye
×1	100p	100p		C6; read from the schematic by eye
×1	2u2	2.2u		C7 electrolytic; read from the schematic by eye
×1	2u2	2.2u		C8 electrolytic; read from the schematic by eye
×1	2n2	2.2n		C9; read from the schematic by eye
×1	120p	120p		C10; read from the schematic by eye
×1	22n	22n		C11; read from the schematic by eye
×1	120p	120p		C12; read from the schematic by eye
×1	1n	1n		C13; read from the schematic by eye
×1	120p	120p		C14; read from the schematic by eye
×1	10n	10n		C15; read from the schematic by eye
×1	2u2	2.2u		C16 electrolytic; read from the schematic by eye
×1	100u	100u		C17 electrolytic; read from the schematic by eye
×1	47u	47u		C18 electrolytic; read from the schematic by eye
Diodes 3
×1	1N4001	1N4001		read from the schematic by eye
×1	2V7	2V7		D1 zener (clipping); read from the schematic by eye
×1	2V7	2V7		D2 zener (clipping); read from the schematic by eye
ICs 2
×2	TL074	TL074		read from the schematic by eye
×1	TL072	TL072		read from the schematic by eye
Potentiometers 6
Character	B100k	B100k	Potentiometer	P1; read from the schematic by eye
Drive	B100k	B100k	Potentiometer	P2; read from the schematic by eye
Level	B100k	B100k	Potentiometer	P3; read from the schematic by eye
Mid	B100k	B100k	Potentiometer	P4; read from the schematic by eye
High	B100k	B100k	Potentiometer	P5; read from the schematic by eye
Low	B100k	B100k	Potentiometer	P6; read from the schematic by eye
LEDs 1
×1	LED	LED		power indicator, colour not given; read from the schematic by eye