For Sale-
Vintage 1950's power supply from a Allen S-10.Tested and working on all three voltages. This supplied power to a LOT of tubes. Extremely heavy... Below am pasting some info on someone who had sold one of the transformers and chokes. The parts here may be good for guitar amplifier projects and similar.
A B+ type tube power transformer from a 1950's type tube organ made by the Allen Organ Company. This was used to provide what is called keying voltage for the oscillators which were Hartley types using toroidal coils and 6SN7 tubes. In the configuration used for those organs, the rectified, filtered output was on the order of about 130 volts DC (give or take a few volts). The oscillator circuits in those days did not draw much current but as many as say 40 or so oscillators at a time could be keyed, or more.
The secondary or high voltage winding is center tapped and the no load voltage on either side of the CT is about 167 volts with approx. 120 VAC input.
There is also a 5 volt filament winding for a 5U4 or similar, although the windings were not used in that particular style power supply because originally a selenium rectifier was used. No load output measures about 5.5 VAC
The second device in the pictures is the power supply filter choke. My inductance meter measured it as 2 Henries. The DC resistance is about 9.7 ohms.
The power transformer is AIRDESIGN # P - 60540 and the choke does not have a manufacture's mark, only the numbers 20815 and 366544.
Send your zip code for ship cost- should be between $14.95 and $45.95 if you are in the continental USA (Nov. 2012).
