Supertone Amp Video 2

30 04 2010
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Supertone Video 1

27 04 2010




Supertone 2311 Circuitry Photos

31 03 2010

As you can see, a lot of the internal components need replacement.

Solar, Sangamo, Beaver and Mighty Mite caps all on display.





Supertone 2311 Tube Array

19 03 2010

This amp was made 79 years ago and the tube complement is a bit different than what is found in amps made in the 1950’s to present day.

The preamp tubes consist of a pair of 6N7 valves while the phase splitter is a 6F6GT and the output is provided by a 6F6-G tube. Rectification duties are handled by an 80 tube.

Ever seen another amp with these?





A Peek At The Backside

26 02 2010

As can be seen from the open back of the Supertone, this is actually a small combo amp.  The lack of a back panel really helps this little powerhouse disperse the sound.

The speaker is an 8 inch Jensen red label with the output transformer attached. The numbers on the speaker seem to be from an earlier dating system than most Jensens and I’m not sure of the year of manufacture.

Gloriously simple control panel featuring my favorite layout: one knob! A volume control is all I ever want with an amp anyway. Sweet little Supertone badge on the back, too.





Stadium 400-T Circuitry Photos

30 11 2009

I wasn’t surprised that the Stadium amp had very little circuitry when I opened her up,  she sounds very direct and uncomplicated.

A real point to point beauty laid out intelligently and very little of the ‘rat’s nest’ jumble to deal with.

This little thing has a few wiring surprises such as the inputs going directly to the volume control before hitting any tubes or resistors.  More on that later as I plan to open up and analyze the circuitry of each amp that has been presented here to date.