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scott wurcer 10th December 2012 12:14 AM

Do you think they would still use the same name for this?
1 Attachment(s)
Circa the 60's

john dozier 10th December 2012 12:34 AM

Well, if they rounded the end.......Regards you DOM!

gpapag 10th December 2012 12:39 AM

This is for old nerds.
Besides it’s length is nothing to die for.
Add to this, there are no batteries inside…


john dozier 10th December 2012 12:54 AM

This thread could degenerate quickly. Best we end it now. Regards

qusp 10th December 2012 02:49 AM

it looks well used already....

john dozier 10th December 2012 03:00 AM

I just knew this would take on a life of its own!

kevinkr 10th December 2012 03:22 AM

Scott, I've often wondered the same thing.. :eek: :D

Tubelab_com 11th December 2012 12:57 AM


Circa the 60's
I think these were all gone by the 60's. They were common in car radio power supplies in the 1940's. By 1960 they were using space charge tubes for all but the output stage which was a big fat germanium transistor.

My first car was a 1949 Plymouth. The radio had 9 tubes and ran a pair of 6V6's in push pull for 10 watts.

benb 11th December 2012 02:56 AM

In the 1970's I took apart some old (then) military tube equipment, it had a dynamotor in it. I never ran the thing, but I presume it generated dynamotor hum...

I was just reading this, which describes a vibrator as a ... a ...
Motor-generator - Wikipedia, the free encyclopedia

wintermute 11th December 2012 03:07 AM

Had one of those in an old tube car radio that I had. Made quite the racket, but I guess the cars of the day were pretty noisy as well!! It was an appropriate name, but yes it might raise a few eyebrows today ;)

It was a DC-AC converter correct?


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