[UPDATE] I uploaded new BOM and Build Manual.
A builder pointed to me, the switch is wrong in BOM. It should be ON-OFF-ON switch instead of ON-ON.
Deeply sorry for this mistake!
MAIN PCB Top and Bottom
POWER PCB Top and Bottom
This is an envelope generator based on the SMD AS3310.
The AS3310 is a modern recreation of the classic Curtis CEM3310 chip, used in many famous mono and poly analogue synth from the eighties.
We took the best ideas from all the classic 3310 circuits and tried to squeeze the maximum from this fantastic chip.
The MODE switch takes this module beyond a simple ADSR type envelope generator.
It can work as:
- NORMAL - a conventional ADSR envelope,
- DAMPED - an ADRR piano envelope approximation
- AUTO - a short gate will cycle the envelope shaper through a complete ADR envelope
It has an additional TRIGGER input which can be used for generating multiple peak envelopes.
This is a relatively easy build, using common parts and SO-16 AS3310 SMD chip.
Attack Time 2.5ms-1.5s
Decay Time 6ms-4s
Sustain Level 0-10V
Release Time 6ms-4s
ENV-100 is available in two type of kits :
KIT1 :
- 2 x PCBs + Front Panel
KIT2 :
- 2 x PCBs + Front Panel
- 1 x Red LED superbright
- 1 x AS3310 SMD
KIT3:
- 2 x PCBs + Front Panel
- 1 x AS3310 SMD
- 1 x Red LED superbright
- 1 x Tactile E-Switch + White cap
- 1 x 100KB Pot
- 3 x 1MA Pot
- 4 x Minijack sockets
- 1 x 6way Pinheader Male for 10/12mm spacer
- 1 x 6way Pinheader Female for 10/12mm spacer
- 4 x 1900h Cream Knobs
The rest of the parts like resistors, caps, diodes, are easy to be found on every common store.
