Difference between revisions of "ER-VCA2-01"
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== Checkout == | == Checkout == | ||
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| + | === Rev 2 === | ||
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| + | * Headers line up | ||
=== Rev 1 === | === Rev 1 === | ||
Revision as of 17:16, 23 November 2022
Contents
Features
- Dual Voltage Controlled Amplifier (VCA)
- Based on HAGIWO's LM13700 Dual VCA - Modular Synth Made for 550 Yen
- LM13700 Operational Transconductance Amplifier
- Adjust POTS between VCA and Mod
- 3U tall
- 6HP wide
- 3 card set
- LM13700 based
- Eurorack
- +/- 12V Power, 10-pin power connector
Connectors
J1 - Daughtercard Pots
- POT1 = RV1 = Modulation Adjust Channel 1
- POT2 = RV2 = Modulation Adjust Channel 2
J2 - Daughtercard Eurorack Power
J3 - Daughtercard Control Card Jacks
- Controls card J3 = OUT1 (bottom left jack)
- Controls card J4 = OUT2 (bottom right jack)
- Controls card J5 = MOD1 (middle left jack)
- Controls card J6 = MOD2 (middle right jack)
- Controls card J7 = IN1 (top left jack)
- Controls card J8 = IN2 (top right jack)
Reference
- Dual Log/Linear VCA - Article by Ray Wilson
- Has adjustment procedure
Video
Checkout
Rev 2
- Headers line up
Rev 1
- Headers between cards do not line up
- Fix on Controls card
- Make Rev 2 Controls card
- Move down bottom header J2 to match daughtercard
- Cut off 0.1" of controls card using vice/hacksaw
- Use female headers on bottom of daughtercard
- Use right angle pin header pins to connect to pads (remove plastic)
- Fix on Controls card
