Transmitting Tubes

• Filament: Thoriated Tungsten
• Voltage: 7.5 + 0.37 volts
• Current: 20 Amps
• Amplification Factor: 200

Used * No longer available for export
MFR: Eimac 
SKU: 3-1000Z-EI-P

Data Sheet

This 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.

Special purpose, broadcast/industrial High Mu Triode
New Old Stock * No longer available for export
MFR: Machlett
SKU: 7289-JAN-CAGD-MACH

Designed for cathode drive applications at frequencies up to 2500Mc
New old stock * No longer available for export
MFR: Westinghouse
SKU: 7289-WH

Designed to function as a pulse rated 3CX100A5.
New Old Stock, New In Box * No longer available for export
MFR: Eimac
SKU 7815R
Six Month Warranty

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: RCA
SKU: 4X150D-RCA

New Old Stock * No longer available for export
MFR: Varian
SKU: VA259A-WOT

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

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

Transmitting Tetrode
Glass Envelope
New Old Stock * No longer available for export
MFR: General Electric - Made in France
SKU: 4-400A-GE-FRANCE