daniel@hexagon.se (Daniel Deimert) (03/11/91)
I was wondering if it would be possible to record an analogue signal (i.e. the one in a loud-speaker's cable) on a tape recorder. Or rather if the resulting signal is of good or poor quality. S/N ratio? Would the circuitry needed be complicated? Please e-mail suggestions to me! Regards, Daniel -- Daniel Deimert, daniel@hexagon.se or ...!sunic!kullmar!pkmab!hexagon!daniel
larry@kitty.UUCP (Larry Lippman) (03/13/91)
In article <3012@hexagon.se> daniel@hexagon.se (Daniel Deimert) writes: >I was wondering if it would be possible to record an analogue signal >(i.e. the one in a loud-speaker's cable) on a tape recorder. Or rather >if the resulting signal is of good or poor quality. S/N ratio? One can obtain a reasonably good signal through use of an inductive clamp-on current probe intended for oscillographic measurement purposes. Both Tektronix and Hewlett-Packard manufacture such probes, which permit a conductor diameter up to about 3/16 inch. It is necessary to amplify the output of the current probe. It is also important to remember that the current probe goes over only *one* conductor of a cable. >Would the circuitry needed be complicated? Not at all. However, one must have a suitably designed probe; an Amprobe AC ammeter probe intended for power measurements would function rather poorly on audio signals. Larry Lippman @ Recognition Research Corp. "Have you hugged your cat today?" VOICE: 716/688-1231 {boulder, rutgers, watmath}!ub!kitty!larry FAX: 716/741-9635 [note: ub=acsu.buffalo.edu] uunet!/ \aerion!larry