Special Purpose

Designed for use in relay and grid controlled circuits.
New old stock * No longer available for export.
MFR: GE
SKU: 6012-GE

Designed to be used in class A,B, and C amplifiers as a passing tube in voltage regulators.
New old stock * New In Box * No longer available for export.
MFR: GE, Raytheon, CBS
SKU: 6216

Side on type having unobstructed photocathode area and S-I response
New old stock * No longer available for export.
MFR: GE, RCA
SKU: 6953

Designed to function as an RF amplifier in the UHF range under harsh conditions such as mechanical shock, mechanical vibration and radiation.
New old stock * No longer available for export.
MFR: GE
SKU: 7077

The EL34 is a thermionic valve or vacuum tube of the power pentode type. It has an international octal base (indicated by the '3' in the part number) and is found mainly in the final output stages of audio amplification circuits and was designed to be suitable as a series regulator by virtue of its high permissible voltage between heater and cathode and other parameters.

New Old Stock * No longer available for export
MFR: General Electric
SKU: EL34/6CA7FB-GE 

Designed to function as a HF or IF amplifier tube.
New Old Stock * No longer available for export
MFR: General Electric, RCA
SKU: 6136

Designed to function as an af power amplifier and modulator, a linear RF power amplifier, and a class C power amplifier and oscillator.

New Old Stock, New In Box * No longer available for export
MFR:GE, RCA, Motorola
SKU: 6883B

Designed to function as either a amplifier or oscillator up to 3.75GHz. Pulsed operation possible, delivering up to 300W out at 3GHz.
New old stock * No longer available for export.
MFR: GE
SKU: 2SC40A

Special version of the 12AY7. Made with three pieces of mica, halo getter, and black anode plates.
New old stock * New Old Stock * No longer available for export.
MFR: General Electric Company
SKU: 12AY7-6072-JG-GE