Transmitting Tubes

• 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.

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

Used * No longer available for export
MFR: Amprex
SKU: 4CX250R-AMP-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.

Transmitting Tube 4CX5000A
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX5000A-EI-1
Six Month Warranty

Silver coating on these tubes has tarnished due to air exposure

New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX125C

• Filament: Thoriated Tungsten
• Voltage: 9.0 volts
• Current: 39.5 – 43.5 Amps
• Amplification Factor (Grid Screen): 5.5

Rebuilt * No longer available for export
MFR: RF Parts Company

Data Sheet

This rebuilt 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.

This is a “Good Used Tube” or “Pull”. Some are removed from New or Reconditioned Military or Commercial Equipment. This tube receives the Full RF PARTS Testing, and is electrically similar to our 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: 4CX250B-EI-P

NOTE: PICTURE FOR REFERENCE ONLY. CONDITION 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.

• Cathode: Oxide Coasted, Unipotential
• Heater Voltage: 6.0 +0.3 Volts
• Heater Current, at 6.0 Volts: 5.4 Amps
• Cathode-Heater Potential (maximum): ±150 Volts

Data Sheet

New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX600J-EI

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
• Current: 73 – 78 Amps
• Amplification Factor (Grid Screen): 4.5

Rebuilt * No longer available for export
MFR: RF Parts Company
SKU: 4CX5000A-RFPR

Data Sheet

This rebuilt 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.