Shopify secure badge
Menu
Cart 0
CV378, COSSOR, ELECTRONIC TUBES, HIGH WYCOMBE FACTORY, 53KU, BROWN BASE, AUGUST 1952 PRODUCTION
Move your mouse over image or click to enlarge
CV378, COSSOR, ELECTRONIC TUBES, HIGH WYCOMBE FACTORY, 53KU, BROWN BASE, AUGUST 1952 PRODUCTION CV378, COSSOR, ELECTRONIC TUBES, HIGH WYCOMBE FACTORY, 53KU, BROWN BASE, AUGUST 1952 PRODUCTION CV378, COSSOR, ELECTRONIC TUBES, HIGH WYCOMBE FACTORY, 53KU, BROWN BASE, AUGUST 1952 PRODUCTION

CV378, COSSOR, ELECTRONIC TUBES, HIGH WYCOMBE FACTORY, 53KU, BROWN BASE, AUGUST 1952 PRODUCTION

Only 1 left!

CV378, COSSOR, ELECTRONIC TUBES, HIGH WYCOMBE FACTORY, 53KU,  BROWN BASE, AUGUST 1952 PRODUCTION 

On offer we have an incredibly scarce device for sale.  It's a Cossor produced 53KU, showing the characteristic balluster envelope, the parallelogram electrode cage and the swan neck getter plate.   A truly beautiful device with superb aesthetics and more importantly a superb performance.

Device test data: Ia = 120.0mA range, GOOD  A1 80/ A2 81.

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.

 

 

We Also Recommend

5U4G, KEN-RAD ,5 RIB ,CHARCOAL ANODE, JAN, VT-244, T4 CODE, AUGUST 1944 PRODUCTION, 5U4

5U4G, KEN-RAD ,5 RIB ,CHARCOAL ANODE, JAN, VT-244, T4 CODE, AUGUST 1944 PRODUCTION, 5U4
5U4G, MARCONI BADGED CANADIAN WESTINGHOUSE, MATCHED PAIR, SMOOTH CHARCOAL ANODE, VT-244, 5U4

5U4G, MARCONI BADGED CANADIAN WESTINGHOUSE, MATCHED PAIR, SMOOTH CHARCOAL ANODE, VT-244, 5U4
5U4G, Mullard, Amerty, CV575 U52 Black 3 Rib Plate, Triple Mica, D Bar Getter, Broken Spigot

5U4G, Mullard, Amerty, CV575 U52 Black 3 Rib Plate, Triple Mica, D Bar Getter, Broken Spigot
5U4G, NATIONAL UNION, SMOOTH CHARCOAL ANODE,JAN-CNU, VT-244, OCTOBER 1943 PRODUCTION,5U4

5U4G, NATIONAL UNION, SMOOTH CHARCOAL ANODE,JAN-CNU, VT-244, OCTOBER 1943 PRODUCTION,5U4
5U4G, PHILCO ,5 RIB ,CHARCOAL ANODE, 5P DATE CODE, M-R PRINT, 1955 PRODUCTION 5u4

5U4G, PHILCO ,5 RIB ,CHARCOAL ANODE, 5P DATE CODE, M-R PRINT, 1955 PRODUCTION 5u4