Transmitting Tubes

Rebuilt using a Svetlana core.
Filament: Thoriated tungsten
Voltage: 5.0 ± 0.25 Volts
Current, at 5.0 volts: 38.5 Amps

Rebuilt * No longer available for export
MFR: ZONUM INDUSTRIES

Data Sheet

• 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.

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

The 4CX250B/M is a ceramic/metal, forced-air cooled external-anode tetrode with a maximum anode dissipation rating of 250 Watts. The 4CX250B/M is intended for use in applications where tight control of electrical specifications is required and replaces the 4CX250B in all applications. This tube utilizes a ruggedized internal structure and utilizes a welded anode cap for improved reliability.
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX250B/M-EI

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.

Svetlana Transmitting Tube, 8321/4CX350A

MFR: Svetlana, Russia

4X150A / 7034 Ceramic/Glass Transmitting Tube. New Old Stock 

Various USA Brands, Limited Quantity Available, New Old Stock. Not For Export

NOTE: Picture for reference only.  Brand and condition may vary.

• Cathode: Oxide-coated
• Voltage 12.6 ± 0.6 V
• Current, at 12.6 volts: 4.4 ± 0.3 A
• Voltage, cathode-heater, max:. ± 100 V

New Old Stock * No longer available for export
MFR: Svetlana
Made in Russia

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.

DTS&C-2  Dual Tube Socket / Chimney Combination & (2) 4X250F 26.5v Eimac NOS Tubes, sockets are Eimac SK650 mounted on chassis platform.  MFR: Eimac (Tubes & sockets)  Socket assembly was removed from military equipment.