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Vintage Raytheon JAN-4D32 transmitting beam tetrode vacuum tube, New Old Stock (NOS) and still sealed in the original box.
The 4D32 is a rugged RF transmitting beam tetrode dating to the post-WWII era and was used as the final RF amplifier tube in vintage Collins transmitters, including the Collins 32V-1, 32V-2 and 32V-3. (Collins Radio)
Features:
* Brand: Raytheon
* Tube Type: 4D32 / JAN-4D32
* Type: Transmitting Beam Tetrode
* Application: RF power amplifier / transmitter service
* Military JAN designation
* Original vintage tube
* New Old Stock (NOS)
* Factory sealed box
* Excellent collectible condition
* Ideal for vintage radio restoration, Collins equipment, amateur radio collectors and vacuum-tube enthusiasts
The Collins 32V-1 service documentation specifically lists the RK-4D32 as the power amplifier tube, while the 32V-series transmitters are documented as using the 4D32 final tube. (Collins Radio)
Condition: New Old Stock. Factory sealed/original box. Please examine photos carefully for the exact tube and packaging condition.
A great addition to a vintage radio collection or as a replacement/spare for restoration of classic Collins transmitting equipment.
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