Homebrew Battery Eliminator
I mentioned a few days ago in my "Old Tag Boards" thread - that I needed to repair a useful old one for a Batt. El. project. Well its now fitted fine - just the ticket.
Got plenty of PSU's & voltages for connecting up my two 1920's TRF's, but what a lot of fannying about with banana plug leads & crock-clip leads, etc. Voltages needed :- 2 or 4V for Filaments, a range of -ve Vg's up to 7.2V, & 4 HT's - - 60, 90, 120 & 150V. I've an excellent two channel modern digital LV DC PSU for heater/filament voltages(PSM 3/2A), but the rest I wanted to place inside a handy sized sloping spare cabinet. So - 60V from a rechargeable battery pack(made up with PP3's), a -7.2V GB rechargeable pack made up with AA's, and the other three HT's made up from three mains T/F's - - FWR's, Chokes & Electrolytics. Now done, next stage is to cut out a cardboard template for the front top panel - meter, switches, fuses, indicator lights, etc. Bit of jiggery-pokery I expect to get everything to fit. (Some wits or wags might say that all ex RAF guys are good at jiggering & pokering).
Regards, David
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