Dear Pulsar 23 “Pulsar23 Guidebook” (Ref. [1]) team,
First off, thank you kindly for your big effort in getting this Guidebook together. I am making my way through it and I am impressed with how well and logically it has been laid out. As one can expect with any large, complex technical documents, errors may be discovered and over the course of time, this will be corrected.
p. 103
I believe I have found in error in Ref. [1] p. 103 where the behaviour of the CHAOS is described, in particular the behaviour of the 1 Bit, 2 Bit and 3 Bit output pins. The table has 8 rows one for each of the possible output values as a binary sum, maximum of 3 bits, so number of levels = 2^3=8, which is correct, however there are 4 columns for the bits of this truth table instead of 3 columns, one column for each bit.
Personally I would have formatted the table as below:
Level bit3 bit2 bit1
8 1 1 1
7 1 1 0
6 1 0 1
5 1 0 0
4 0 1 1
3 0 1 0
2 0 0 1
1 0 0 0
1Bit output made up from bit1
2Bit output made up from bit1 and bit2
3Bit output made up from bit1, bit2 and bit3
p. 102
2nd paragraph, 2nd sentence, indicates the the SHAOS ‘DATA’ pin outputs the sequencer’s stored memory, as does the arrow on the face plate of the Pulsar23. This might be my mistake, but I could only send data TO this DATA pin to change the contents of the memory, not the other way around. I suspect the output arrow might refer to the “draining” action when this pin is connected to the GND point (which does change the memory contents). If I am correct on this, I believe it would be beneficial to update the wording in Ref. [1] to reflect this.
Regards,
Norman Freund
References:
[1] “Pulsar23, A Guidebook, A notebook, a reference book”, Ver 1.0, SynthDawg, Soma Laboratory
