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

4CX150D Eimac Tube
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX150D
Six Month Warranty

• Cathode: Oxide-coated
• Uh: 6.3 V  @ 5.7 +/- 0.4 A
• Input capacitance: 33 +/- 5 pF
• Output capacitance: 11.5 +/- 2 pF

New Old Stock * New In the Box * No longer available for export
MFR: Svetlana
Made in Russia
SKU: 4CX1600U-Svet

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.

TransmittingTube
New Old Stock * No longer available for export
MFR: Svetlana
SKU: 4CX250BC-SVET

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.

4CX350FJ-8904 JAN Amperex Transmitting Tube (NOS/NIB)

The 4CX350FJ / 8904 is intended for Class AB linear RF amplifier service. The tube has rugged internal construction features. The 4CX350FJ/8904 may be used as an exact replacement for the 4CX350F/8322 in most linear applications, requiring only minor circuit adjustment and retuning. The tube has improved intermodulation distortion characteristics. It contains a 26.5 volt heater, and is recommended for new equipment designs.
New old stock * No longer available for export.
Limited 90 Day Warranty.
NSN 5960-00-369-7460
MFR: Amperex, USA

Special, Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Amperex
SKU: 4CX250BT-AMP

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

• 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.