R.F. Interference (Was 48V)

On Topic: I am reminded by the "RFI" from open machines thread, of the tried-and-true early computer music method of simply placing an AM Broadcast reciever next to one's Box and then diddling the various registers, front panel displays, etc., until the tones generated by the RFI made the 'music' patterns in the radio's speaker. This was also echoed in the many compositions for various line and dot-matrix printers, and the obscure but maybe better known theme music to NPR's financial program (Wall Street Week?) [Louis Rukeyser] which used a tape punched to make an ASR33 do a repeating pattern and the resulting sounds recorded and used as the rhythmic basis for it, the which music was called TWIX in Twelve Bars. (composer name escapes me completely) Off Topic: Shortwave radios. I have gotten hold of an ICOM PCR-1000, which is the actual 'radio' parts of a modern full-coverage receiver, minus the front panel. One uses various programs on a PC.laptop, or Mac to 'run' the unit. Since the operation is computer-based, many possiblities open up that were before only the province of agencies and *really* dedicated radio-heads. It covers 100KHtz -> 1.3GHtz continuous but for the Cellular bands, which are blocked. It is the size of a small book and wieghs a pound, runs on 12VDC. Just add antennae.... www.icomamerica.com and look in 'recievers' for more info. Cheers John