Technics Compact Cassette Recording Demonstration

[@nicolasdejesusmunozpalomin388]

Hi, it seems that the technics is fine with the azimuth! Can you send me a test tape?

[@hamradioop5777]

I regret that I no longer own that machine. I suggest you get someone to make a test tape using an audio signal generator connected to a Nakamichi Dragon cassette recorder, as that is likely to be utterly bang-on and you can adjust your azimuth from that tape.

[@nicolasdejesusmunozpalomin388]

thanks!

[@hamradioop5777]

@@nicolasdejesusmunozpalomin388 On thinking about this, my test of the Technics machine was only feeding one channel with audio. You would need a cassette tape recording which has been made from a feed to both channels, from a mono source signal generator, on a known good machine, such as a Nakamichi Dragon. You would then put that cassette tape into your machine and using two channels of an oscilloscope, playback the tape and adjust your azimuth until both left and right signals were in phase. i.e. where the sinewave of the left channel was over the top of the sinewave from the right channel. As you are using audio frequencies, a cheap two channel battery powered oscilloscope would be more than necessary. It's possibly easier to do this with low-ish frequencies, as higher frequencies might show overlaps in too many places, where in fact the azimuth is actually out of kilt.