Battery powered tube radios.

[jr_tech]

Originally Posted by Telecolor 3007

Can you still find 45 V and 90 V batteryes and accumulators?

At least 45V and the very popular 67.5V sizes still are available new:

http://batterycountry.com/ShopSite/specialty-cell.html

(not affiliated)

But they are quite expensive, so I mostly use 9V batteries in series, as required. In this little Emerson, I crudely stuffed about 72 Volts of 9V batteries inside an older cardboard sleeve.



One poster here "Batterymaker" puts together nice authentic-looking reproductions.


jr

[dieseljeep]

Originally Posted by jr_tech

WA2ISE...
Interesting Garod with the 117Z3 rectifier instead of the usual selenium! I recall seeing a portable set that used a 117L7/M7 to provide DC power and also as an audio "booster amp" when operated on line power. Anybody recall such a circuit or remember the model?
jr

The Emerson model FU424 was one of several sets of that design. Riders vol. 13.

[Electronic M]

I've got the green version of that emerson that Jr tech showed with the back opened.
Got it at a garage sale for 20$ along with a wood table model and a Weltron 2001. Aaah, that was a good day.

Tom C.