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

5CX1500B Econco Power Pentode (Pull)
In Stock
This tube was rebuilt by Econco on an Eimac core.
Used Rebuilt * No longer available for export
MFR: Econco
SKU: 5CX1500B-P
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811A RF Parts Company SELECT Transmitting Tube, Matched Set of Three (3)
Out of stock
- The RF Parts Company SELECT 811A is the best quality 811A tube in current production.
- Usage tests show it to be equal to the much-respected RCA and Svetlana 811A.
- Base indexed and internal structure aligned and supported for both horizontal and vertical operation.
- Ideal for the Collins 30L1 and similar equipment where tubes mount horizontally.
- Each tube is tested at our San Marcos, CA USA facility, prior to shipment.
Six Month Limited Warranty against manufacturing defects and workmanship.
MFG: China
SKU: 811A-RFP-M3

811A RF Parts Company (SELECT) Transmitter Tube, Matched Quad (4)
In Stock
- The RF Parts Company Tubes (SELECT) 811A is the best quality 811A tube in current production.
- Usage tests show it to be equal to the much-respected RCA, 811A and Svetlana, 811A.
- Base indexed and internal structure aligned and supported for both horizontal and vertical operation.
- Ideal for the Collins 30L1 and similar equipment where tubes mount horizontal.
- Each RF Parts Company Select tube is tested prior to shipment.
Six Month Limited Warranty against manufacturing defects and workmanship. Sockets in image sold seperately.
MFG: CHINA
SKU: 811A-RFP-MQ
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811A RF Parts Company (SELECT) Transmitter Tube, Matched Set of Two (2)
In Stock
- The RF Parts Company (SELECT) 811A is the best quality 811a tube in current production.
- Usage tests show it to be equal to the much-respected RCA, 811A and Svetlana, 811A.
- Base indexed and internal structure aligned and supported for both horizontal and vertical operation.
- Ideal for the Collins 30L1 and similar equipment where tubes mount horizontal.
- Each RF Parts Company Select tube is tested by RF Parts prior to shipment.
Six Month Limited Warranty against manufacturing defects and workmanship. Sockets in image sold seperately.
MFR: CHINA
SKU:811A-RFP-MP
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5CX1500A Penta Radial Beam Power Pentode (NOS)
In Stock
- Filament: Thoriated Tungsten
- Voltage: 5.0 ± 0.25 Volts
- Current, at 5.0 Volts: 40 Amps
New Old Stock * No longer available for export
MFR: Penta Labs
SKU: 5CX1500A-PENTA
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5CX1500B Rebuilt Svetlana Power Pentode
In Stock
Rebuilt using a Svetlana core.
Filament: Thoriated tungsten
Voltage: 5.0 ± 0.25 Volts
Current, at 5.0 volts: 38.5 Amps
Rebuilt * No longer available for export
MFR: ZONUM INDUSTRIES
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4X150A / 7034 Ceramic/Glass Transmitting Tube (New Old Stock)
In Stock
4X150A / 7034 Ceramic/Glass Transmitting Tube. New Old Stock
Various USA Brands, Limited Quantity Available, New Old Stock. Not For Export
NOTE: Picture for reference only. Brand and condition may vary.
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8167/4CX300A Raytheon Transmitting Tube Broadcast/Industrial (NOS)
In Stock
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

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

4CX250BC Svetlana Transmitting Tube (NOS)
In Stock
TransmittingTube
New Old Stock * No longer available for export
MFR: Svetlana
SKU: 4CX250BC-SVET