This Machlett 2C39A is a glass-metal high-mu planar triode with a plate dissipation rating of 100 watts, designed as a power amplifier, oscillator, or frequency multiplier at frequencies to above 2500 megacycles.
New Old Stock * Not available for export MFR: Machlett SKU: 2C39A-MACH
The 4X150D tetrodes are compact power tubes intended for use as amplifiers, oscillators, or frequency multipliers at frequencies up to 500 megacycles. They are designed for operation at a heater potential of 26.5 volts.
Used * No longer available for export MFR: Eimac SKU: 4X150D-EI-P
These 4-400A Eimac transmiting tubes are low hour pullouts, removed from working equipment. Clean Used * No longer available for export MFR: Eimac * Made in USA SKU: 4-400A-EI-JAN-CBXT-P Ninety Day Warranty