Author Topic: Jefferson Tube Restorer  (Read 276 times)

Offline TelePlay

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Jefferson Tube Restorer
« on: December 06, 2016, 01:19:15 PM »
This goes back to the early 1920s. 4 pin tubes with bayonet mount. Top view shows two pin connections. PM page presents it well (note the screw in bulb socket power plug).

Did these really work and if so, how, cleaning off what?

http://www.ebay.com/itm/VINTAGE-1920S-JEFFERSON-TWO-TUBE-TUBE-REJUVENATOR-NR-/162302779687
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Offline 19and41

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Re: Jefferson Tube Restorer
« Reply #1 on: December 07, 2016, 02:44:52 PM »
I would bet they increased the filament potential to "burn" off any residual oxygen and carbon in the envelope.  Not too much else one can do with household current
"Any sufficiently advanced technology is indistinguishable from magic."
Arthur C. Clarke