ER-VCF-02
Contents
Features
- This is a diode ladder VCF - original design by Moritz Klein, with a couple of small adaptions made by T Killa
- There are two CV inputs
- CV1 with an attenuator to control the amount
- CV2 with an attenuverter so it's possible to invert the signal as well as controlling the amount of modulation
- The filter is a low-pass filter only
- 3U tall
- 6 HP (30mm) wide
- Uses ER-PROTO-02 Front Panel and controls cards
- Re-label jacks using P-Touch labels
- Cover unused holes/silkscreens with blank P-Touch labels
Credits
Pots/Connectors
Front Panel Pots
- POT RV1 - CV1 Attenuator adjustment
- POT RV2 - CV2 Attenuaverter adjustment
- POT RV3 - Not used
- POT RV4 - Not used
- POT RV5 - Resonance adjustment
- POT RV6 - Cutoff Frequency adjustment
POT RV1 - CV1 Attenuator adjustment
POT RV2 - CV2 Attenuaverter adjustment
POT RV5 - Resonance adjustment
POT RV6 - Cutoff Frequency adjustment
Front Panel External Connectors
- J3 - Audio In
- J4 - CV Amount
- J5 - Attenuaverter input
- J6 - Audio Out
J3 - Audio In
- 3.5mm mono connector
- Tip - signal
J4 - CV Amount
- 3.5mm mono connector
- Tip - signal
J5 - Attenuaverter input
- 3.5mm mono connector
- Tip - signal
J6 - Audio Out
- 3.5mm mono connector
- Tip - signal
Front Panel Controls to Analog Card Connectors
J5 - Pot connector
J10 - Jack connector
Analog Card Connectors
J1 - Eurorack Power
J2 - POT (from Controls card)
J3 - Jacks (to/from Controls card)
Issues
Rev 1
Videos
- Design base on Low Pass only version of Moritz Klein's design
- Not Voltage controlled, but interesting
- Chapter 11.7 of Op Amps Textbook
Assembly Sheet
- Three card set
- ER-PROTO-02 Front Panel
- ER-PROTO-02 Controls card
- RV1, RV2, RV5, RV6 (No RV3, RV4)
- Analog card
