The 177WA is a 75 watt pentode requiring forced air cooling. Maximum frequency for full output is 175 MHz. The original tube was the Penta Labs PL-177A and this is a ruggedized version. Eimac bought Penta and for a time produced some of their tube line.

Length = 4.50" Diameter = 2.13"
Max voltage = 2000
Max current = 175 ma
Fil voltage = 6
Fil current = 3.2 amps         GOTO INDEX