Special Purpose

Designed for use as a detector and amplifier at ultra high frequencies.
New old stock * No longer available for export.
MFR: RCA, Raytheon, GE
SKU: 9001

New old stock * No longer available for export.
MFR: RCA, Hytron
SKU: 837-USA

General characteristics:
Filament voltage, V: 12.6
Heater current, A: 0.7
Type of current: AC
Anode voltage, V: 500
Anode, mA: 60
Grid current second, mA: 30
Maximum power dissipation second grid, W:8
Output power, W: 20

Carriage type with S-3 response.
New Old Stock * New In Box * No longer available for export
MFR: RCA
SKU: 926

Carriage type with S-3 response.
Used * No longer available for export
MFR: RCA
SKU: 926-P

Designed to function as a red radiation detector in relay or measurement applications.
New old stock * No longer available for export.
MFR: Continental Electric, RCA
SKU: 918

Designed to function as a red and infrared radiation detector in sound reproduction applications
New old stock * No longer available for export
MFR: RCA, CBS, Westinghouse
SKU: 920

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 to be highly sensitive in the red and infrared spectrum of radiation.
New old stock * No longer available for export
MFR: Cetron
SKU: 1P36

Designed to function as a red and infrared radiation detector in sound reproduction applications
New old stock * No longer available for export
MFR: CBS
SKU: 1P31-CBS