MCR1 Receiver Spy Radio Harleys Biscuit Tin Radio


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MCR1 Receiver Spy Radio

Designed during the second half of the war, the “Biscuit” was a full-range, highly sensitive, super heterodyne receiver with 5 miniature tubes.

It was powered by a special battery, or with a separate power supply by AC/D.C. of 97 to 250 volts.

This receiver was delivered in a 2-pound “Huntley-Palmer” cookie tin which also contained 4 interchangeable coil units, 3 batteries or 2 batteries and a power supply pack, 30 feet of aerial wire and 10 feet of ground wire.

A battery provided an average of 30 hours’ reception time.

MCR1.jpg (42909 bytes)

Four knobs on the same side controlled aerial adjustment, sensitivity, regeneration for telegraph reception, and the frequency dial.

Dimensions: 3˝ X 2 X 8˝ inches

Weight: About 2 pounds

Ten thousand of these sets were built and approximately half were widely distributed in the clandestine networks.

MCR1 3.jpg (22640 bytes)

A well kitted out spy

MCR1 2.jpg (25591 bytes)

Data and Circuit
Component Values
and Layout available
Details Below On Paper
CD or Via a Download

Click Here


MCR1 Receiver Spy Radio Harleys Biscuit Tin Radio
Manuals are Available Worldwide as a Download on CD or Paper Copy.

Data including circuit, Component Values and Layout,  plus power pack 18 pages
Manual 18 A4 pages worldwide

Printed Paper Copy or on CD are Plus Postage.

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We do all we can to provide the very best that is available for you.
But in the unlikely event that any data should not be as you expected.
A refund is always available. Kind Regards Allen and Alanna.


Manuals are Available Worldwide as Paper Copy on CD or Via a Download

Thank you for your interest. Allen and Alanna G0RIT
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Revised: January 20, 2016