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ID = 40260
United States of America (USA)
Brand: Schickerling Products Manufacturing Co.; Newark NJ
Developer: Schickerling Products Manufacturing Co.; Newark NJ 
Tube type:  Full-Wave Cold-cathode-rectifier   Power-supply 
Identical to Z80
Similar Tubes
Other characteristic (electr. data):

Base UX-Base (4 Pins (2 thick, USA 1924, UX)
Was used by Radio/TV-reception etc.
Filament No heater

The Full-Wave Cold-cathode-rectifier Z80 from Schickerling, also called "Corona" is similar to Raytheon BH. Both were developed for use in B battery eliminators for radio receivers - but the anode structure is different. It handles high peak currents of 80 to 90 Ma output - but needs proper elimination of RF noise by proper shielding and filtering. See also the "Telefunken" RGN1500 in Germany.

Literature Radio Engineering   June 1927
Z80: Bill Condon collection with permission from Mrs V Condon
Fin Stewart


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