The HY69 is a 40 watt dissipation beam tetrode with full ratings to 60 MHz made by Hytron. Designed for instant filament service.
Length = 5.51" Diameter = 2.03"
Max voltage = 600
Max current = 120 ma
Fil voltage = 6.3
Fil current = 1.5 amps
Data sheet:
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