Transmitting Tubes

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. 

New Old Stock * No longer available for export
MFR: Motorola
SKU: 65-83382D02

Transmitting Tube, High Vacuum Diode Rectifier
Vintage 4 pin
New Old Stock * No longer available for export
MFR: Eimac
SKU: 253

The YU204 is a pulse tetrode intended for use in pulse modulator, pulsed-amplifier and pulsed-oscillator service. This compact, high vacuum radial-beam tetrode, incorporating a molybdenum anode and non-emitting grids, is recommended for use in new equipments where high voltage, high current, or high duty factor is encountered.

Clean Used * No longer available for export
MFR: Amperex
Made in France
SKU: YU-204-AMP-P

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.

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

Transmitting Tube Radial Beam Power, Tetrode, Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4X500A
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.

• Filament: Thoriated Tungsten
• Voltage: 7.5
• Current: 20.0 – 22.7 Amps
• Amplification Factor: 6.1 – 7.

New Old Stock * No longer available for export
MFR: Eimac
SKU: 4-1000A-EI

Data Sheet

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

Transmitting Tube, Pulse Rated, 4PR60C/8252W Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Jan/Eimac, USA
SKU: 4PR60C