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
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
Silver plated tubes may exhibit some silver tarnish (which does not detract from performance). Some tubes may show faint marks from the socket in our testing equipment. All NOS tubes carry the RF PARTS Standard Limited Warranty covering workmanship and materials for 90 days.