Lithium Grim OmniRat, Building Instructions

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OmniRat v1.0
Manufacturers and product names are mentioned solely for circuit identification, and where applicable their trademarks are the
property of their respective owners who are in no way associated or affiliated with the author. No cooperation or endorsement
is implied.
4
Components
Part Value Type Part Value Type
C1 22n MKT R1 ** 1% metal film
C2 4u7 Electrolytic 25V+ R2 560R 1% metal film
C3 2u2 Electrolytic 25V+ R3 ** 1% metal film
C4 1n MKT R4 1k 1% metal film
C5 100p MLCC/Silver Mica R5 47R 1% metal film
C6 ** MLCC/Silver Mica R6 1k 1% metal film
C7 4u7 Electrolytic 25V+ R7 ** 1% metal film
C8 ** MKT R8 ** 1% metal film
C9 22n MKT R9 ** 1% metal film
C10 **
Electrolytic
25V+/MKT
R10 10k 1% metal film
C11 1u Electrolytic 25V+ R11 ** 1% metal film
C12 100u Electrolytic 25V+ R12 ** 1% metal film
C13 10n MKT R13 100k 1% metal film
D1 ** R14 100k 1% metal film
D2 ** P1 ** Distortion
D3 ** P2 A100k Filter/Tone
D4 ** P3 A100k Volume
D5 1N4001 Q1 2N5458
IC1 ** VR1 10k Bourns 3386
Optional diode switch
SW1 SPDT (On-On)
MKT can also be FKS, SMF or even greenies.
Configurations
Early Big
Box RAT RAT
Chinese
RAT2 RAT2
Turbo
RAT Vintage RAT
You Dirty
RAT
C6 33p 30p 30p 30p 30p 30p 30p
C8 3n 3n3 2n7 3n3 3n3 3n3 3n3
C10 1u 1u 10u 10u 10u 1u 10u (?)
D1-D2 1N914 1N914 1N4148 1N4148 LED 1N4148 1N34A
IC1 LM308N LM308N LM308N LM308 / OP07 OP07 LM308N / OP07 OP07
R1 x x 2M2 2M2 2M2 x x
R3 1M 1M 2M2 2M2 2M2 1M 1M
R7 1k5 1k6 1k6 1k6 1k6 1k6 1k6
R8 x x x x 2M2 x x
R9 1M 1M 1M 1M 2M2 1M 1M
R11 x x 10k 10k 10k x x
R12 47R 47R 47R or 100R 47R or 100R 47R 47R 47R
P1 A150k A100k A100k A100k A100k A100k A100k