Transmitting Tubes

• Filament: Thoriated Tungsten
• Voltage: 5.0 ± 0.25 Volts
• Current, at 5.0 Volts: 40 Amps

New Old Stock * No longer available for export
MFR: Penta Labs
SKU: 5CX1500A-PENTA

This tube was rebuilt by Econco on an Eimac core.

Used Rebuilt * No longer available for export
MFR: Econco
SKU: 5CX1500B-P

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

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

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

Jan Transmitting Tube
Special purpose, broadcast/industrial High Mu Triode
New Old Stock * No longer available for export
MFR: Eimac
SKU: 7289-EI

8188/4PR400A Radial-beam Pulse Tetrode Modulator Oscillator Amplifier tube.

New Old Stock 
MFR: Eimac
SKU: 4PR400A

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

Glass Transmitting Tube, Tetrode (NOS)
New Old Stock * No longer available for export
MFR: Eimac/Triton
SKU: 4-500A
Six Month Warranty

• Filament: Thoriated Tungsten
• Voltage: 7.5 volts
• Current: 20 – 22.7 Amps
• Amplification Factor: 6.9

Used * No longer available for export
MFR: Eimac
SKU: 4PR1000A-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.