National Co., Malden, MASS made this chrome plated calibrator crystal. It has two pins on 3/4" centers X 0.125" thick.
There is a large slab of quartz inside sandwiched between two plates. A very unusual and beautiful device.
This obviously belongs inside some nice receiver. QTY 1 available for $20.00 plus shipping
Manufactured By Philadelphia Signal Depot. Serial number F1188.
Designed for 32 mmFD Capacitive Load. Ceramic Body Holder, adjustable contact.
Dimensions: 2.25" diameter, 1.125" thick. Has two offset pins that protrude 0.5" long, and 0.25" diameter. Has a metal plate on the bottom. This is a very impressive-looking, and RARE crystal. Very few are thought to be in existence any more.
QTY 1 Available for $25.00 plus shipping
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73 from Brian ((( Amateur Radio G3XLQ / AF4K )))
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