Transmitting Tubes

Transmitting Tetrode
Glass Envelope
Used * No longer available for Export
MFR: Eimac, USA
SKU: 4-400A-EI-JAN-8438-P

For Broadcast and Industrial use.
Used * No longer available for Export
MFR: Eimac, USA
SKU: 4-400C-EI-BOX

See Data Sheet

NOTE: Picture for reference only

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

7289 / 3CX100A5 / 2C39BA
Used * No longer available for export
MFR: General Electric Company
SKU: JG-7289-GE-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

• Filament: Thoriated Tungsten
• Voltage: 7.5
• Current: 20.0 – 22.7 Amps
• Amplification Factor: 6.1 – 7.7

Low Hour Pull * No longer available for export
MFR: Eimac
SKU: 4-1000A-EI-LPH

Data Sheet

This tube has been recently tested and meets all technical specifications. The Warranty period for this tube is Thirty Days from the date of purchase, for the original customer only.  Please follow the instruction insert for proper installation.

The VA-218 is a fixed frequency reflex klystron designed to operate in the increasingly important public service radio location band. 

Frequency: 10.525kMc  ±0.012kMc

New Old Stock * No longer available for export
MFR: Varian
SKU: VA-218B

New Old Stock * New In Box * No longer available for export
MFR: Eimac
SKU: 4-400B-7427 EI-NOS-NIB

New Old Stock * No longer available for export
MFR: Penta Labs
SKU: 4-400A-JAN-CBCZ-P