Tubes - Transmitting, Audio, Misc.
Please choose from the following TUBES Sub-Catagory choices:
572B![]() |
811A![]() |
6146![]() |
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4CX350 Series![]() |
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SOCKETS![]() |
CHIMNEYS![]() |
PLATE CAPS![]() |
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BOOKS![]() |
BASES![]() |
PARASITIC SUPPRESSOR![]() |

4-400C / 6775 Westinghouse Radial Beam Power Tetrode (NOS)
In Stock
For Broadcast and Industrial use.
New Old Stock * No longer available for Export
MFR: Westinghouse
SKU: 4-400C-WEST
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4-400C / 6775 Eimac Radial Beam Power Tetrode (NOS/NIB)
In Stock
For Broadcast and Industrial use.
New Old Stock / New In Box * No longer available for Export
MFR: Eimac, USA
SKU: 4-400C-EI-BOX
See Data Sheet
NOTE: Picture for reference only
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JG-7289 General Electric Planar Triode (Pull)
In Stock
7289 / 3CX100A5 / 2C39BA
Used * No longer available for export
MFR: General Electric Company
SKU: JG-7289-GE-P
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3-500Z Eimac High-Mu Power Triode (Pull)
In Stock
The Eimac 3-500Z is a compact power triode intended to be used as a zero-bias Class B amplifier in audio or radio-frequency applications.
- Filament: Thoriated Tungsten
- Voltage: 5.0 volts
- Current: 14.5 Amps
Used * No longer available for export
MFR: Eimac
SKU: 3-500Z-EI-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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VA-218B Varian Klystron Fixed Frquency Reflex Tube 10.5GHz (NOS)
In Stock
The VA-218 is a fixed frequency reflex klystron designed to operate in the increasingly important public service radio location band.
Frequency: 10.525kMc ±0.012kMc
New Old Stock * No longer available for export
MFR: Varian
SKU: VA-218B

4-400B / 7427 Eimac Transmit Tube (NOS/NIB)
In Stock
New Old Stock * New In Box * No longer available for export
MFR: Eimac
SKU: 4-400B-7427 EI-NOS-NIB

4-400A / JAN-CBZC Penta Labs Transmit Tube for Broadcast / Industrial (NOS/NIB)
In Stock
New Old Stock * No longer available for export
MFR: Penta Labs
SKU: 4-400A-JAN-CBCZ-P
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4-400A EIMAC Transmit Tube (NOS)
In Stock
4-400A EIMAC Transmit Tube (NOS)
New Old Stock * No longer available for export
MFR: Eimac
SKU: 4-400A-EI-NOS
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4PR400A EIMAC-JAN Pulse-rated Transmit Tube (LHP)
In Stock
8188/4PR400A Radial-beam Pulse Tetrode Modulator Oscillator Amplifier tube.
Low Hour Pull
MFR: Eimac
SKU: 4PR400A-JAN-LHP

4PR400A PENTA Pulse-rated Tetrode, Transmit Tube (LHP)
In Stock
Low HOur Pull * No longer available for export
MFR: Penta
SKU: 4PR400A-PENTA-LHP