as:
astable or monostable multivibrators
to add further layer of switching/automation/self-immersion for new synthesiser
also as add-on modules for old neural
circuit page 38 polytronic (DDR electronics kit)
voltage control on base, emitter to ground and resistance flows across positive (of controlled signal) to collector
program as described previously
1] 555 as astable circuit producing automatic series of pulses a la: http://www.doctronics.co.uk/555.htm#astable - timing portion consisting of 2 resistors and 1 ca[ (4.7 uF) (one VR light dependent, one 680 ohms determining frequency and high and low times of each pulse) 2] 555 also as accepting control voltage for frequency - pin 5 3] 555 as monostable trigger 4] Schmitt trigger - 2 transistors as in Polytronic book (2nd variation with both emitters tied and potentiometer to ground. addition of a 3rd transistor in place of one potentiometer new ideas/work/TODO: 1] today maybe tackle RC oscillator (p162 poly) and tone generator (p104) and compare circuits to basic electronics 2] make simple low-frequency radio circuit for connection to fences, street furniture (along with regular transmitter) 3] print all necessary data sheets 4] plus all circuit modules as outlined. 5] hysteresis in Schmitt triggers as gap between positive and negative going switching voltage hysteresis: a retardation of the effect when the forces acting upon a body are changed (as if from viscosity or internal friction); esp: a lagging in the values of resulting magnetization in a magnetic material (as iron) due to a changing magnetizing force. see: http://www.lassp.cornell.edu/sethna/hysteresis/WhatIsHysteresis.html and also noise in hysteresis in relation to avalanching: http://www.lassp.cornell.edu/sethna/hysteresis/noise.html and, http://www.lassp.cornell.edu/sethna/hysteresis/hysteresis.html