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Table of Contents
Frequency central
Build documentation for:
CEM
velope
Based on the Pro-One ADSR, featuring CEM3310 or AS3310 chip
CEMvelope is based on the legendary ADSR section of the Sequential Circuits Pro-One monosynth,
with minor adaptations to integrate it into Euro format. Smooth and snappy! It has a gate input as
well as a trigger input, the trigger input works in conjunction with the gate input for multiple
triggering from a suitable controller device. CEMvelope has at it's heart a CEM3310 or AS3310. You
can source your own chip, of buy direct from me when you order your PCB set and panel.
Key to PCB screen print:
n: This signifies NPN BC547 transistors. Note the correct pinout as shown by the half circles.
The PCB shows the correct orientation for BC547. Other similar transistor types can be used,
but please observe the correct pinout.
Please observe the correct polarity of the electrolytic capacitors.
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Table of Contents
Related Manuals for Frequency Central CEMvelope
Summary of Contents for Frequency Central CEMvelope
- Page 1 CEMvelope has at it’s heart a CEM3310 or AS3310. You can source your own chip, of buy direct from me when you order your PCB set and panel.
- Page 2 Bill of Materials 1K x 4 10nF x 1 AS3310 or CEM3310 Alpha 9 B100K x 4 10K x 4 22nF x 1 22K x 1 33nF x 1 TL072 x 1 3.5mm socket x 4 100K x 3 10uF x 1 BC547 x 2 200K x 1 47uF x 2...
- Page 3 Main PCB assembly 1. Solder all resistors 2. Solder both IC sockets 3. Solder all three non-electrolytic capacitors 4. Solder both transistors and 79L09 – watch the polarity! 5. Solder the power header. 6. Solder all electrolytic capacitors 7. Cut male headers to size and solder them into place. Make sure that they stick out of the bottom of the PCB.
- Page 4 RDH 14/05/18 http://www.frequencycentral.co.uk/...
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