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Hi all!
Does anyone have a schematic for a simple B Battery eliminator? I have a couple of old battery powered radios to restore and would like to eliminate the need for batteries.
Thanks!
JoeI don’t have a schematic, but this transformer would be a good start. perhaps it can be found cheaper.
Hi Joseph
I have attached a JPG schematic of a simple B+ power supply.
Hope this helps.
Enjoy
BruceAttachments:
Hi Joseph and others.
I have attached a 81 page PDF of connection diagrams for connecting vintage battery radios, it is used with a ARBE-III universal Battery Eliminator which I use.
Enjoy Bruce
Attachments:
When using Bruce’s simple schematic, use a polarized plug with B- wired to the neutral side to avoid a live chassis.
Hi All
I just wanted to clarify, the schematic I posted was from the internet. I did not intend to take credit for it. I tried numerous times to upload the website with it on but to no avail. The schematic came form;
Phil’s Old Radios: Home: Building
BruceJoseph,
I have attached a very simple and inexpensive possible solution to your battery eliminator issue for the higher voltage. A couple of “D” cells will probably do for the filaments.
It requires 3 HP printer power supplies. I have found numerous type and power ratings at a local thrift store for 3 to 4 dollars ( Canadian) each.
They have 2 output voltages, 32 volts and 16 volts.
You need the ones with a 2 wire line cord. The three wire ones have the 0 volt wire (A) connected to the AC ground pin on the supply.If you wire them as shown they will give you your high voltage. The diodes are optional and will lower your voltage slightly.
I have used 4 of them in series (without the diodes) to power a 40 watt incandescent light bulb as a test without a problemRegards ,
John G.
VO1 CATAttachments:
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