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5U4G, RCA, BLACK SMOOTH PLATE, VT-224, K5E, SEPT-OCT 1943 PRODUCTION, 5U4

5U4G, RCA, BLACK SMOOTH PLATE, VT-224, K5E, SEPT-OCT 1943 PRODUCTION, 5U4

RCA

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5U4G, RCA, BLACK SMOOTH PLATE, VT-224, K5E,  SEPT-OCT 1943 PRODUCTION,  5U4

Device test data: Ia = 120.0mA range, GOOD  A1 71/ A2 72.

We test our rectifiers using a calibrated and standardised AVO VCM163 on the specified range.  This VCM gives a qualitative estimation of emission as you can see from the photo, the GOOD range bar runs below the numerical uA/Ig scale with the GOOD range between 51 - 100.  The above device test data, shows the max current range specified and a record of the numerical reading within the GOOD range obtained.


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