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USA - BC-221 (vlnoměr)

BC-221 ( frequency meter)

Vlnoměr BC-221 / SCR-211

It was produced in the companies many companies:
CBK = Allen D. Cardwell Mfg Corp.,
CIY = Rauland Corp.,
CPR = Philco Corp.,
CRR = Bendix Radio Corp.,
CZR = the Zenith Radio Corpa
and versions ( placed 25 ):
A, B, C, D, E, F, J, K, L, M, N, O, P, Q, R, T, AA, AC, AE, AF, AG, AH, AJ, AK, AL

He was also a "model" for the soviet No. 4-1

Frequency range: 125 kHz to 20MHz
Kmitočtoměr is calibrated in two ranges: 125 to 250 kHz and 2000 to 4000 kHz.
Using 2., 4., 8. harmonic, then the range of frequencies in the range of 250 to 2000 kHz;
Using in 2., 4., and 5. the harmonic range of frequencies in the range of 4,000 and 20,000 kHz

Source:
https://nj7p.org/history/scr-211.html
https://www.edelpro.com/generators/generators.html.
URL : https://www.valka.cz/USA-BC-221-vlnomer-t125104#425144Version : 0
Diskuse

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Vlnoměr BC-221 byl znám také jako SCR-211


Zdroj:
https://wftw.nl/scr211/scr211.html
USA - BC-221  (vlnoměr) - Srovnání podobnosti

Srovnání "podobnosti"
USA - BC-221  (vlnoměr) - S označením SCR-211

S označením SCR-211
USA - BC-221  (vlnoměr) - S označením Č 4 - 1

S označením Č 4 - 1
URL : https://www.valka.cz/USA-BC-221-vlnomer-t125104#425146Version : 0