EFM DEG 2a Manual

DEG 2a - Dual ADSR

Assembly

Press the overlay on the panel blank
Drill and clean the holes
Remove the application tape and cutouts
Mount the jacks, switches, pots ect... to the panel.
Install the resistors
Install the IC sockets
Install the capacitors
Cut and solder header strip pins in pads used to connect wire to the board
Plug the ICs into their sockets
Mount the L-Brackets to the board with 440 screws and nuts, using the non threaded end of the bracket
Mount the board to the panel with 440 screws using the threaded end of the bracket
Wire the panel mounted parts to the header pins.

Notes

D3 and D6 are mounted to the control pots. Do not install them on the pc-board.
The LEDS are no longer used you can also omit R12 and R17.
For faster envelopes change R9,10,11,14,15 and 16 from 1K to 100ohms. Change C6 and 8 from 10uF to 4.7uF
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Schematic

Dual ADSR Envelope generator.

Features...

Common Gate

+/-12 or +/- 15V