Quote:
Originally Posted by Findm-Keepm
Yes, we modded ours - originally it was ultrasonic only, but a Zenith service seminar in 79 or 80 gave up the kit number for the IR mod, which also included the instructions to mod it to verify drive signals on the early System IIIs. They demo'ed it at the service seminar connected to an oscope, for purely visual means. We used it autonomously and rarely connected it to anything. Don't leave it on - the battery dies quickly.
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I reckon the scope connection would be good for remote tuning or determining frequencies. Could come in handy for getting one of my 6-rocker XL-100 remotes working properly with my Heathkit GR-2000. At least one frequency already matches what the Heathkit expects for the same function.