Видео

Follow up video demonstrating sounds created by modulating a Moog Mother-32 with a Comdyna GP-6 analog computer. This is a long video, but RUclips will let you watch it in parts.

An experiment modulating the Moog Mother-32 semi-modular synthesizer using outputs of a Comdyna GP-6 analog computer programmed to solve a Lorenz equation. Th Mother-32 is configured to generate a constant 440 A sawtooth waveform. All sound variation is due to the GP-6 output modulating the VCO pitch and VCF cutoff frequency.

A description of the low-level radiation issue with some Philbrick K2-XA vacuum tube based operational amplifiers. Links: philbrickarchive.org/radio-active_neon_bulb.htm philbrickarchive.org/radium_paint_on_neons.htm philbrickarchive.org/radioactive_opamps.pdf

A show and tell video on the R-100B vacuum tube power supply from Philbrick Researches circa 1960. There is some audio noise in the first lab portion that was unoticeable prior to uploading. Sorry about that. Links: Philbrick Applications Manual: www.analog.com/en/education/education-library/applications-manual-computing-amplifiers.html Philbrick Archive: philbrickarchive.org R-100B Manual: phi...

A quick-and-dirty video demonstrating HP3562A automation with the HP9816A computer via the HP-IB communication bus. Code: 10 ! INITIALIZE 20 PRINT "Initialize FRA" 30 Fra=710 40 OUTPUT Fra;"RST" 50 ! TURN AUTO CALL OFF 60 PRINT "Set auto clibration off" 70 OUTPUT Fra;"AUTO0" 80 ! SET MEASURE MODE TO SWEPT SINE 90 PRINT "Set for swept sine mode" 100 OUTPUT Fra;"SSIN" 110 ! SET FREQUENCY RANGE 1H...

A random patch from the ARP 2600 manual plotted on an x-y oscilloscope.

Lissajous patterns generated with two Moog Mother-32 analog synthesizers. I thought the patterns generated were interesting and good for a laugh if nothing else. It's interesting how the patterns evolve with the synthesizer sound as the two audio signals beat.

A demonstration of the basic inputs and outputs of an analog computer using the Comdyna GP-6.

Demonstration of an early version of the Comdyna GP-6 analog computer

A demonstration of basic calculus concepts on an analog computer.

A brief demonstration of programming an analog computer.

This is a brief demonstration of the solution of the vertical projectile problem using a Comdyna GP-6 analog computer.

My first try at Arkansas Traveler on a 12-string (Breedlove Pursuit).

GP-6 Initial Test with two independent 2nd order DEs. Monitored with Tektronix 465 and Analog Arts SF880 simultaneously

Christmas Carols on minimoog Voyager via Gretsch Electromatic with Fishman TriplePlay