565

The 565 or 565/865 is a 15 watt tetrode with a maximum frequency for full ratings of 15 MHz. First available in 1929. This example was made in the De Forest/RCA factory. The 865 was the usual designation.

Length = 5.87" Diameter = 2.00"
Max voltage = 750
Max current = 60 ma
Fil voltage = 7.5
Fil current = 2 amps         GOTO INDEX