Marcel van Hulst

Militaria Auction (1919-1945)

Heterodyne frequency meter:

Model and type: Signal Corps U.S. Army - Frequency meter BC-221-M.

Used to set the transmit and receive frequencies of military radio equipment with extreme precision.
The device uses vacuum tubes and contains an internal crystal for calibration.
The vacuum tubes can come loose during transport; please check them before use.
At the bottom is the original manual and the accompanying calibration booklet with a block diagram of the circuit.
Origin: USA.
Produced by Bendix Radio.
Period: WWII 1942.
With internal battery.
Operational and in perfect condition.

Weight: 12 kg.
Dimensions: 270 x 25 x 370 mm wdh.
Perfect to use or collect.

Heterodyne frequentiemeter : 

Model en type : Signal Corps U.S. Army - Frequentiemeter BC-221-M.

Werd gebruikt om de zend- en ontvangstfrequentie van militaire radioapparatuur uiterst nauwkeurig af te stellen.
Het apparaat werkt met vacuümbuizen en bevat een intern kristal voor kalibratie.
De vacuümbuizen kunnen loskomen tijdens transport, gelieve deze na te kijken voor gebruik.
Onderin bevindt zich de originele handleiding en bijbehorende kalibratieboekje met een blokschema van het circuit.
Herkomst : VS.
Geproduceerd door Bendix Radio.
Periode : WOII 1942.
Met interne batterij.
Werkend en in perfecte staat.

Gewicht : 12kg.
Afm. : 270x25.x370mm whd.
perfect te gebruiken of verzamelbaar.


Signal Corps, U.S. Army - Frequency meter BC-221-M. - Military radio gear - 1942

Original/official - Metal - Very good condition

Belgium

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Heterodyne frequency meter BC-221-M, manufactured in 1942 by Bendix Radio for the Signal Corps U.S. Army, metal case, 12 kg, dimensions 270 × 25 × 370 mm, with an internal battery, vacuum tubes may loosen during transport, working and in excellent condition, without certificate of authenticity.

Signal Corps, U.S. Army - Frequency meter BC-221-M. - Military radio gear - 1942

Selected by Marcel van Hulst

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Heterodyne frequency meter BC-221-M, manufactured in 1942 by Bendix Radio for the Signal Corps U.S. Army, metal case, 12 kg, dimensions 270 × 25 × 370 mm, with an internal battery, vacuum tubes may loosen during transport, working and in excellent condition, without certificate of authenticity.

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