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1010/ap

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circuits for synthesiser extension and experimentation: 20:48 (tech_notes#160)

all to be documented here (particularly PIC 18F programming and PF work)

1) basic transistor circuits (to be completed)

2) RC oscillator

3) simple FM transmit and recieve

4) neural network (74HC14 and 40106) circuits

5) darlington pair

6) op-amps and feedback

7) NOT gate and other logic circuits

8) 555, square wave and further (transistor-based) Schmitt triggers

9) diode/transistor avalanche

10) PIC programming (Broccoli18 see

http://home.earthlink.net/~davesullins/software/pic18f.html )

http://zwizwa.goto10.org/darcs/brood/doc/purrr.txt

11) switch (4016/66) module

12) prototype 74HC595 -> 4016/66 swithces for self-switching circuits

13) using the 4051?

references:

http://library.solarbotics.net/pieces/parts_elect_ic.html

(see the 1381s: these "gate" a source until the voltage is above some "trip" limit, at which point it is allowed onto a third pin. These chips are discriminated by the voltage at which the 1381 triggers, with a single-digit suffix (a.k.a., its "rank") on the part number corresponding to the trip voltage:) there

http://www.retards.org/library/technology/electronics/audio_circuits/synths/diy-synth_list_archive/synth-diy.archive.9510

http://www.cgs.synth.net/modules/cgs28_seq_switch.html

http://www.fairchildsemi.com/pf/CD/CD4051BC.html

http://www.williamson-labs.com/480_xtor.htm

http://boardroom.solarbotics.net/beamod/sonic.html

http://www.solarbotics.net/bftgu/tutorials_schmitt.html

http://www.doctronics.co.uk/4015.htm

http://www.doctronics.co.uk/555.htm

http://www.doctronics.co.uk/4016.htm

http://www.cgs.synth.net/modules/cgs21_super_psycho.html

http://www.uoguelph.ca/~antoon/gadgets/741/741.html

http://www.kpsec.freeuk.com/trancirc.htm

http://www.edn.com/index.asp?layout=article&articleid=CA313057

http://www.geocities.com/vsurducan/electro/PIC/pic84lcd.htm