Transmitting Tubes
Please choose from the following TRANSMITTING TUBES Sub-Catagory choices:

4CX3000A / 8169 Eimac Radial Beam Power Tetrode (NOS)

In Stock
- Filament: Thoriated Tungsten
- Voltage: 9.0 volts
- Current: 39.5 – 43.5 Amps
- Amplification Factor (Grid Screen): 5.5
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX3000A
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.
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4CX250R Amprex Transmitting Tube 7580W (Pull)

In Stock
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.
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4CX250R Eimac Transmitting Tube Broadcast/Industrial (NOS)

In Stock
Transmitting Tube, Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX250R-EI-NOS
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.
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4CX350A Amperex Transmitting Tube (4CX350A / DX553 / 8321)(NOS)

In Stock
Amperex Transmitting Tube DX553/4CX350A/8321
New Old Stock * No longer available for export
MFR: Amperex
SKU: 4CX350A-Amp

8809 / 4CX600J Eimac Ultra Linear Power Tetrode (NOS)

In Stock
- 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
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.
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4CX125C Eimac Ceramic Transmitting Tube Tetrode (NOS)

In Stock
Silver coating on these tubes has tarnished due to air exposure
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX125C

4CX10000J Eimac Radial-Beam 10,000 Watt Power Tetrode (NOS/NIB)

In Stock
- Plate Dissipation (Max.): 12,000 Watts
- Screen Dissipation (Max.): 450 Watts
- Grid Dissipation (Max.): 200 Watts
- Frequency for Max. rating (CW): 110 MHz
- Amplification Factor: 4.5
New Old Stock, New In Box * No longer available for export
MFR: Eimac
SKU: 4CX10000J
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.
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4CX1000A / 8168 Eimac Ceramic Power Tetrode (NOS)

In Stock
- Cathode: Oxide Coated, Unipotenial
- Heater Voltage: 6.0 ±0.3 Volts
- Heater Current at 6 Volts: 9.0 Amps
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX1000A-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.
Add to Cart

4CX250R Eimac Transmitting Tube 7580W (Pull)

In Stock
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.
Add to Cart

4CX15000J Eimac Radial Beam Power Tetrode (NOS)

In Stock
- Filament: Thoriated Tungsten Mesh
- Voltage: 7.5 +0.3 Volts
- Current @ 7.5 volts: 160 Amps
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4CX15000J-NOS
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.
Add to Cart