BLACKJACK VCO TRIMMERS

THE (2) 10K TRIMMERS ARE TO SHAPE THE TRIANGLE AND CENTER THE SINE WAVE AMONG ZERO.
THE (2) 100K TRIMERS THAT ARE NEXT TO EACH OTHER ARE TO SHAPE THE SINE WAVE.
THE 100K TRIMMER AND 100R TRIMMER THAT ARE NEXT TO EACH OTHER AT THE TOP ARE FOR 1V/OCT CALIBATION.
THE 1M TRIMMER IS THE SINE WAVE BIAS LEVEL.

BLACKJACK VCO PARTLIST

blackJack VCO PARTLIST 2010
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IC
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LM13700 (1)
TL072 (3)
OP275 (1) OR TL072 (1)
TL074 (1)


DUAL MATCHED TRANSISTORS
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SSM2210SZ OR SSM2210P (1)
OR (2) 2N2222A
0R (2) 2N3904 NPN TRANSISTORS


(1) 2N5457 TRANSISTOR
(8) 1N4148 DIODE

resistors
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use Metal Film 1% for best performance

1K (6)
10K (11)
100K (11)
1M (5)
10M (1)
130K (1)
18K (1)


2K TEMPCO (1)
2K RESISTOR (1)

20K (3)
200K (2)

3K (1)

49K9-51K (1)
47K (1)
470K (1)
470R (2)

4K7 (2)

capacitors
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0.1uf (100nf) (10)
0.001uf (1)
10pf (1)
4.7pf-5pf (1)

0.0022uf-0.0027uf(1)
100pf (3)

0.0047uf silver mica or polystyrene (1)

1uf Electrolytic/Tantulum is better (2)

10uf Electrolytic (2)

(optional)47pf-100pf Cap that goes under the TL074, it is soldered first on the other side before TL074 IC socket.
If you forget this it is not critical, I put it to reduce spikes on the Triangle wave.

trimmers
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100R Multiturn (1)
100k Multiturn (3)
1M Multiturn (1)

10k Single Turn Flat (2) Mouser part # 531-PT6KV-10K

PTC
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you can place the following:
(2) FERRITE BEADS or
(2) 22R resistors with or without Ferrite Beads or
(2) Thermal resettable Fuses (PTC)

At worst just place a Jumper if you don't care about rail noise or protection.


MOUSER PART NUMBERS FOR POTS, KNOBS,
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You need 5 Linear type B pots 50k-100k value:

858-P160KN-0QC15B50K (50k pot)-- if 100k is not in stock (5)


858-P160KN-0QC15B100k (100k pot) (5)

futurlec Alpha pots will fit on pcb also.
If you want a firm grip of PCB to Panel buy (2) Dual 100k Linear Pots
at Futurlec and it will retain the hold better. I use single pots and it works fine once installed.

Gray Soft Touch Knobs with Black Line

450-6518 (5)


(optional pcb that I have)3.5mm jacks
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502-35RAPC4BV4 (mouse switchcraft jack) (10)

Hook Up wire
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22 Gage Stranded

IDC Cable For EuroRack COnnection (POWER)
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(1) 16 pin Ribbon Cable
(1) IDC 16 PIN Connector
(1) 8 Double Row IDC Header