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VCO 3D
The VCO3d is supplied with tempco resistors however there is a chip-heater option on
the board.
Chip-Heater
To use the chip-heater option the three spaces on the board marked for TC , TC and TC-
R are not used. All parts and jumpers are installed. Turn the unit on. After about five
minutes warmup adjust trimmer R7 until U5 pins 5 and 6 are equal. About +0.67VDC.
Tempco Resistors
Dual VCO based on the
Moog Rogue oscillators.
Features...
Two wide range VCOs
Saw and Varable PW
Syncable
On board chip heater
may be disabled in
favor or 1K tempcos
+/-12 or +/- 15V
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Table of Contents
Related Manuals for EFM VCO 3D
Summary of Contents for EFM VCO 3D
- Page 1 VCO 3D Dual VCO based on the Moog Rogue oscillators. Features... Two wide range VCOs Saw and Varable PW Syncable On board chip heater may be disabled in favor or 1K tempcos +/-12 or +/- 15V The VCO3d is supplied with tempco resistors however there is a chip-heater option on the board.
- Page 2 To use the tempco option the three spaces on the board marked for TC , TC and TC-R are used. Unused or changed parts Install (2) 1K tempco resistors for the spaces marked TC. Leave enough slack on the leads so that they can be placed in contact with the top U1. Use a little heat sink compound to insure good thermal contact.
- Page 3 Full Parts Kit C1,C2, C3,C5,C7,C8 0.01 C4,C6 100p R1,R20 R2,R19,R21,R25,R13,R14,R16 R18,R21,R32,R33,R35,R37,R40 100K R3,R22 330K R5,R24,R42 R6,R25 R,R267 R8,R27,R43 4.7K R9,R11,R12,R15,R28,R30,R31,R34 R10,R29 R17,R36 2.2K R4,R23,R39 1N914 Q1,Q2 2N3906...
- Page 4 LM3046 U2,U3,U4,U5 TLO72 PC-Board Small Parts Kit P1,P3 Knobs T4,T6 T1,T3,T2,T5 1/8 PHONE L-Bracket Power Connector 8 pin 14 pin Panel Overlay Overlay...
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