Re: Homebrew Battery Eliminator
Well, that's it finished. Lot of fannying about to get everything fitted inside, and had to raise the top panel height slightly with some wee hardwood lengths so that there was sufficient clearance between the meters & switches, and the chokes & capacitors beneath.
60, 90, 120 & 150V HT's(HT's 1, 2, 3 & 4) can be monitored current & voltage wise. And, HT's 2,3 & 4 can be adjusted by their 3 variable resistors, according to loading. Filament & Vg voltages can also be monitored. The 60V & Vg rechargeable battery packs can charged externally, if needed. But their functions within TRF's(Screen Volts & Grid Bias) should draw very little current, if any. All voltages fused. Just the Filament supply(2 or 4V) is sourced from an external modern digital LV PSU.
Cost - just about nowt ! What I didn't source from my junk shelves & boxes, I scrounged from kind local Forum/VMARS chums up here(thanks guys). Rechargeable PP3 & AA batteries were new, but Birthday/Xmas vouchers for a local DIY store, took care of that.
Must get back to finishing sorting a chum's Taylor 47A now. Then heaps of gardening jobs beckon.
Regards, David
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