Transmitting Tubes

Transmitting Tube 7580W/4CX250R Broadcast/Industrial
Used * No longer available for export
MFR: Eimac
SKU: 4CX250R-EI-P

NOTE: Picture for reference only, Condition and Cosmetics may vary

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.

Data Sheet

• Filament: Thoriated tungsten
• Voltage: 5.0 ± 0.25 V
• Current, at 5.0 volts: 38.5 ± 2.0 A

New Old Stock * No longer available for export
MFR: Svetlana
Made in Russia
SKU: 4CX1500A-SVET

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.

• Filament: Thoriated Tungsten
• Voltage: 7.5 volts + 0.37 volts
• Current  at 7.5 volts:  103 Amps
• Amplification Factor (Grid to Screen): 4.5

New Old Stock * No longer available for export
MFR: Eimac
SKU:4CX5000J

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.

Eimac Transmitting Tube Ceramic/Metal Tetrode NSN 5960-01-264-2087
Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Eimac
SKU: Y769
Six Month Warranty

The 4CX1000A/8168 is a ceramic and metal, forced-air cooled, radial-beam tetrode, with a rated maximum plate dissipation of 1000 watts. 

• Cathode: Oxide Coated, Unipotenial
• Heater Voltage: 6.0 ±0.3 Volts
• Heater Current at 6 Volts: 9.0 Amps

Data Sheet

Clean Used * No longer available for export
MFR: Eimac
SKU: 4CX1000A-EI-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.

The Raytheon 8167/4CX300A is a power tetrode of metal-ceramic construction, designed with an external anode and integral cooling fins.

• Heater Voltage: 6.0 Volts
• Heater Current: 2.85 Amps

New Old Stock * No longer available for export
MFR: Raytheon
SKU: 8167/4CX300A-RAY

This tube is an improved version of the 4CX250B, with slightly higher average gain. This tube has been tested, and is electrically similar to a NOS tube at 95%-100%. There may be some minor scratches or discoloration indicating that the tube had been in a socket

Used * No longer available for export
MFR: Eimac
SKU: YC-136-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.

• Long Life version of 4CX350A

New Old Stock * New In Box * No longer available for export
MFR: Eimac/CPI
SKU: 4CX350AC-EI-NIB

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.

• Filament: Thoriated-tungsten mesh
• Voltage:  6.5 ± 0.3 Volts
• Current @ 6.5V: 105 Amps

New Old Stock * No longer available for export
MFR: R F Parts Company
SKU: 4CX12000A-RFP-REBUILD

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.