Hello
Does anyone have any specs on a SSB adapter that was usually seen and sold in the ER magazines? It's in a black box with the wording of the title of this thread. It selects OFF-AM-LSB-USB. I.F. input and audio out.
I would like to know what the audio specs were for AM operation. And the power source and polarity. Nothing marked on the case of the unit, not even a manufacturer.
The PCB is nice professional construction using the Motorola 1496 chip.
Here are some pictures.
Thanks
Fred
Fred,
That was the PD-1 the first generation of product detectors manufactured by Ron Hankins of Electronic Specialty Products. Here is the website:
http://www.electronicspecialtyproducts.com/I had one of them several years ago, it worked just fine, but an external amplifier was needed, as the audio was line output.
The present version is designated the PD-2 and looks slightly different. It works fabulously. I'm presently using mine with an SP-600. It has a couple of trimmer caps inside to adjust for the various voltages found in IF outputs and one for the audio output to compensate for whatever device you might be using.
I have the audio out on mine connected to a Timewave DSP 599ZX for additional filtering, plus the Timewave has an audio amplifier. I have also used it with a TMC GPR-90. You can order it with different IF frequencies too, such as the 51J series with the 500 kc IF.
