4CX
4CX250B/M Eimac Transmitting Tube (NOS)
In Stock
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
4CX250BT Amperex Special Broadcast/Industrial Transmitting Tube (NOS)
In Stock
Special, Broadcast/Industrial
New Old Stock * No longer available for export
MFR: Amperex
SKU: 4CX250BT-AMP
4CX250BC Svetlana Transmitting Tube (NOS)
In Stock
TransmittingTube
New Old Stock * No longer available for export
MFR: Svetlana
SKU: 4CX250BC-SVET
4CX350AC Eimac/CPI Radial-Beam Power Tetrode Tube (Pull)
In Stock
Eimac/CPI Transmitting Tube
Long Life version of 4CX350A
Used * No longer available for export
MFR: Eimac/CPI
SKU: 4CX350AC-EI-P
YC-136 Eimac Ceramic Transmitting Tube (4CX250B) (Pull)
In Stock
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.
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4CX350AC Eimac/CPI Radial-Beam Power Tetrode Tube (NOS/NIB)
In Stock
- 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.
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4CX1500B/8660 Eimac Transmitting Tube (Pull)
In Stock
Eimac Transmitting Tube
Used * No longer available for export
MFR: Eimac
SKU: 4CX1500B-P
Email rfq@rfparts.com for price quote
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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4X250F Eimac Tube Transmitting Radial Beam Tetrode (NOS)
In Stock
4X250F Tube Transmitting Radial Beam Tetrode
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4X250F-EIMAC
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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4CX250B/7203 Eimac Transmitting Tube (NOS)
In Stock
Eimac Transmitting Tube
New Old Stock * No longer available for export
SKU: 4CX250B-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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