Transmitting Tubes

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.

New Old Stock * No longer available for export
MFR: Eimac
SKU: 4X150D-EI

Transmitting Tube
Used * No longer available for export
MFR: Eimac
SKU: 4X150A-FAA-P
Ninety Day Warranty

• For Broadcast / Industrial
• High Plate Dissapation triode suited for UHF-TV transistor service.
• Also useful as a CW oscillator or amplifier

New Old Stock * No longer available for export
MFR: Eimac
SKU: Y667A

Y-667 Data Sheet

The Eimac Y394 is a small frequency stable rugged planar triode.

New old stock * No longer available for export
MFR: Eimac
SKU: Y394

New Old Stock * No longer available for export
MFR: Amperex
SKU: 4CS250H-AMP

4-500B  Transmitting Tube, Tetrode, Glass,  MFR:Triton

Limited Quantity Available, New Old Stock, Not for Export

Transmitting Tube, Tetrode, Glass Envelope
New Old Stock / New In Box * No longer available for Export
MFR: Eimac, USA
SKU: 4-400A-EI
Six Month Warranty

For use as an amplifier, oscillator, or modulator.

• Filament: Thoriated Tungsten
• Voltage: 5V
• Current: 6.5Amp
• Maximum plate-dissipation 125 Watt
• Maximum plate-voltage 3000V (3KV) at frequencies up to 120 Mc
• Base: 5 pin metal shell

New Old Stock * No longer available for export
MFR: Eimac
SKU: 4-125A

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

Clean Used * No longer available for export
MFR: Eimac
SKU: 4-1000A-EI-P

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.