2022年9月29日 · I think I would consider a small sealed lead-acid 6v battery. I have one I bought at Tractor Supply for (I think) $12.99. They are used with game feeders, electric fences, etc. …

2022年1月29日 · Well, after taking out the battery holder it was clear that the negative connection from the battery holder to the board was broken. As a quick test I connected it to another …

2009年5月13日 · I tried a 6.3 volt filament transformer, rectifier, and a 3300 uf cap, but only came up with just at 6 volts, so I can't use a regulator. I found a 5 volt 3 amp linear power supply on …

2025年2月11日 · The AWA battery eliminator PCB provides 180V and lower voltages in 22.5V steps; up to 80 mA total. Heater supply is 1 amp at 2.0V, could be increase with a lower …

2018年11月16日 · My model arrived DOA; it's the 6v/12v - 15A model with the visible diodes. Thanks! Last edited by David Child on Nov Wed 21, 2018 3:18 am, edited 1 time in total.

2021年7月26日 · Yes, the 1.5V button cells is an option however the 4LR44 cell is exactly that. 4, 1.5V button cells in a wrapper. The model number of the battery says it all...4 LR44. My next …

2025年3月12日 · A "ground" lead can be used if no signal is heard when testing. The ground is a wire or test clip from either side of the other radio. Both are at the same RF signal ground. …

2011年3月16日 · 99% of the time if that primary fuse opens, it is because of a problem in the battery pack making it draw too much current, causing the fuse to open. If that's the case you …

2022年8月20日 · None of them read any leakage cold with an ohmmeter, so I grabbed a 6v battery, picked out the grubbiest looking metal tube and hooked it up. Then I charged a 100uf …

2021年5月2日 · Does anyone have any good plans for battery elsewhere eliminator for a,b,c supplies? I’ve got a friend who has an old radio with 3 O1a tubes in it, and I’d like to build a …