Some maps to help navigate the Buchla Easel program/patch card.
These first 2 pics are for vintage & rev2 versions (not the Rev 1).
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1. +15V 15. sequencer (out) B ?? (different to tab13F ??)
2. Gnd (Quiet) 16. Random out
3. ? ("rng" on the BEMI card) 17. Envelope trig in
4. ? 18. Pulser out
5. ? 19. Env Duration (sustain on the BEMI card) in
6. ? 20. Pulser out
7. Voltage Level - Step 1 (in) 21. Env (in) decay
8. Voltage Level - Step 3 (in) 22. Level 1 in
9. Volatge Level - Step 4 (in) 23. MOD osc waveshaper
10. Voltage Level - Step 5 (in) 24. Keyboard in for mod & complex osc
11. n - sequencer no of steps (in) 25. Level 2 in
12. Pulse sequence in. 26. Envelope Det
13. Sequencer CV levels (out) 27. Gate Mode 2
14. Random (trigger) in. 28. Inv
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1. -15V 15. key
2. ? 16. pulser trig in
3. ? 17. timbre
4. ? 18. attack (envelope)
5. ? 19. Pressure
6. ? 20. Envelope Gen
7. Voltage Level 2 (in) 21. Seq out
8. random 22. Mod osc in
9. Period in 23. Inv in
10.index (in) 24. Complex Osc (WS in) 1
11.frequency (in) 25. Complex Osc (WS in) 2
12.Sequencer - *Trig in* 26. Gate Mode 1
13.pitch in 27. SR (Gate out) Offset
14.keyboard out 28. SR Gate in
Modern BEMI cards are 99% the same. They don't have the upper upper prototyping section
and there is an additional RNG patch point for the mod osc.
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The inputs to the "rng" on the BEMI card are 3rd tab, front.
The outputs from the "rng" are tab 27 on the rear of the card (the second last tab).
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Notes:
+The trigger point for the sequencer can be either of the bottom two connections (below the K or P).
It corresponds to Tab 12 on the rear card edge connector.
Looks like the 208 works well with 5V triggers --as tested with my littlebits sequencer.
http://djjondent.blogspot.com.au/2015/12/buchla-easel-vs-korg-littlebits-and.html
--------------------------------------------------------------------------------
If there are any errors, omissions or BS, please let me know.
I'll update this page as I sus out all the connections.
These first 2 pics are for vintage & rev2 versions (not the Rev 1).
1. +15V 15. sequencer (out) B ?? (different to tab13F ??)
2. Gnd (Quiet) 16. Random out
3. ? ("rng" on the BEMI card) 17. Envelope trig in
4. ? 18. Pulser out
5. ? 19. Env Duration (sustain on the BEMI card) in
6. ? 20. Pulser out
7. Voltage Level - Step 1 (in) 21. Env (in) decay
8. Voltage Level - Step 3 (in) 22. Level 1 in
9. Volatge Level - Step 4 (in) 23. MOD osc waveshaper
10. Voltage Level - Step 5 (in) 24. Keyboard in for mod & complex osc
11. n - sequencer no of steps (in) 25. Level 2 in
12. Pulse sequence in. 26. Envelope Det
13. Sequencer CV levels (out) 27. Gate Mode 2
14. Random (trigger) in. 28. Inv
-------------------------
1. -15V 15. key
2. ? 16. pulser trig in
3. ? 17. timbre
4. ? 18. attack (envelope)
5. ? 19. Pressure
6. ? 20. Envelope Gen
7. Voltage Level 2 (in) 21. Seq out
8. random 22. Mod osc in
9. Period in 23. Inv in
10.index (in) 24. Complex Osc (WS in) 1
11.frequency (in) 25. Complex Osc (WS in) 2
12.Sequencer - *Trig in* 26. Gate Mode 1
13.pitch in 27. SR (Gate out) Offset
14.keyboard out 28. SR Gate in
Modern BEMI cards are 99% the same. They don't have the upper upper prototyping section
and there is an additional RNG patch point for the mod osc.
The outputs from the "rng" are tab 27 on the rear of the card (the second last tab).
------------------------------------------------------------------------------
Notes:
+The trigger point for the sequencer can be either of the bottom two connections (below the K or P).
It corresponds to Tab 12 on the rear card edge connector.
Looks like the 208 works well with 5V triggers --as tested with my littlebits sequencer.
http://djjondent.blogspot.com.au/2015/12/buchla-easel-vs-korg-littlebits-and.html
--------------------------------------------------------------------------------
If there are any errors, omissions or BS, please let me know.
I'll update this page as I sus out all the connections.