Thanks for the schematic. I have two of these units in the closet both toast They are very different inside. One of them I used for years and then one day smoked and blew its fuse. There was a device inside that blew apart. I could never figure out what it was. I think I can fix it now with the schematic.
C
very simple mod scope. Ther eis a mistake in the schemaic though as the grid of the CRT should go to the left side of the brightness pot. Transformer is about 700VAC, only a few mA. The fil winding is insulated to 2500V.
The transistor circuit and iron core inductor can be ignored as this was intended to energize the inductor and magnetically pull the trace off the screen when no carrier is present. Its a little solenoid from a relay.
Wawasee Electronics was in business as late as the late 1980's. The phone # apparently went to a residence and I spoke to the engineer. Unknown the status today. I have a few of their items, mostly are "10M" amplifiers, and also two of the Catalyzers. The Calayzer is a decent mod scope and has a large meter and three scales 20 200 and 2000W. It measures average voltage on the RF line. It does not have frequency compensation and the reading will be different on 160 to 10M, so the pots ought to be calibrated for the bands in mind. The Catalyzer is light in weight and is about the same width as a TS-430 transceiver so it makes a nice stack. The Catalyzer is one of their nicest products in my opinion.
Wawasee is also the only company I know of that ran a 6BQ5 grounded grid with almost 700VDC on the plate. I had one of these in for service back in the day and it was no slouch on SSB output but on AM the transmissions were best kept short.
