Atwater Kent Radio Breadboard Variometer. 1920's Loose Coupler. Crystal For Sale
If you collect or restore old radios, crystal sets, early
scientific apparatus, vintage test equipment, military surplus, or other unique
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sales, attics, sales, flea markets, and swap meets. I list items for sale on almost every
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In Good Working Condition
This is an Atwater
Kent Breadboard Style Variometer, or VariCoupler from the mid 1920's. It consists of a rotor coil and a stator coil
mounted on the characteristic Atwater
Kent Maroon Bakelite frame. The rotor is controlled by a shaft so that
its inductance can either aid or oppose the inductance of the stator, thereby
providing the function of a variable inductor, or tuner for a radio or crystal
Solid brass posts provide support and holes in the round feet allow for
mounting to a surface. It is complete
with matching AK maroon Bakelite dial calibrated from 0 to 100. An adaptor sleeve in the knob allows mounting
the 3/16 inch shaft into the 1/4 inch diameter knob hole.
Overall diameter, and therefore the height is approx 4 1/2 inch. Depth front to rear is approx 6 1/2 inches
The brass support posts have some pitting, adding to the patina. The posts can be removed and buffed out if
desired, as I did on the Atwater
Kent Logo. (see photos) There are no
chips, cracks, or scratches on any part of the Bakelite frame. The rotor rotates smoothly and positively
with no rubbing on the stator. All coil
windings are held securely in place.
This tuner displays very well and can be the basis for a crystal radio
or other radio project.
I make every attempt
to describe items completely and accurately, and to show any flaws clearly in
the photographs. Questions are invited and will be answered promptly.
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Atwater Kent Radio Breadboard Variometer. 1920's Loose Coupler. Crystal : $83