Tubes - Transmitting, Audio, Misc.

Rugged Twin Power Triode
New old stock * No longer available for export
MFR: RCA
SKU:6336-RCA

Designed to be used in automobile headlight dimming service as the tube is very sensitive to light, allowing the tube to increase or decrease resistance in the circuit.
New old stock * No longer available for export.
MFR: RCA
SKU: 6328

Designed to function as a photodetector tube in relay systems where very high light sensitivity is needed.
New old stock * No longer available for export.
MFR: RCA
SKU: 931

Designed for use as a biased detector or high-gain amplifier.
New Old stock * no longer available for export
MFR: RCA
SKU: 5693-RED-RCA

NOTE: Picture for reference only. 

Designed for use as a balanced modulator, balanced mixer, and frequency converter applications
New old stock * No longer available for export.
MFR: RCA
SKU: 7360

New old stock / New in box * No longer available for export
MFR: RCA
SKU 5814A-BP-RCA

Designed for cathode drive applications at frequencies up to 2500Mc
New old stock, New in box * No longer available for export
MFR: RCA
SKU: 6897-RCA

Designed to function as an oscillator tube with excellent stability over a wide range of frequencies.
New Old Stock * New In Box * No longer available for export
MFR: RCA
SKU: 8058

Designed for use as a biased detector or high-gain amplifier.
New Old stock * no longer available for export
MFR: GE
SKU: 5693-RED-GE

NOTE: Picture for reference only.