Vacuum Tubes

Medium-mu twin triode 9-pin miniature type, intended for applications where dependable performance under shock and vibration is paramount. The 5814A is a "premium" version of the 12AU7.

Full-wave vacuum rectifier

General purpose triode designed for service as an oscillator, detector, or amplifier. It is similar in characteristics to the 6C6, 6J7, and 57 with triode connection.

Diode and a remote cutoff pentode with a common cathode of the 9 pin miniature type especially designed for use as combined IF amplifier and AM detector tubes in AM and AM/FM broadcast receivers.

Remote-cutoff pentode. It is designed for use as a high-gain radio-frequency or intermediate-frequency amplifier in a radio receiver.

The 6X5G is an indirectly heated full-wave rectifiers for use in equipment where the current drain does not exceed 70 mA.

Beam pentode designed primarily for use in the audio output stage of a-c and storage-battery-operated equipment. It is capable of supplying high power output with high sensitivity, high efficiency, and low third and higher-order harmonic distortion.

Pentagrid converter designed to minimize frequency drift. They are intended for service as combined oscillators and mixers in AC, storage battery, and AC/DC operated superheterodynes.

Triode, Double, Western Electric brand

Pentagrid converter

Compactron containing three medium-mu triodes suitable for general-purpose amplifier, phase inverter, or oscillator applications.

Miniature tube which contains a sharp-cutoff pentode and a medium-mu triode. Each section has a separate cathode and is electrically independent.

Duodecar type used as a horizontal-amplifier tube in color and black-and-white television receivers.

New-Old-Stock (NOS) tube. Tuning indicator tube

Push-pull RF beam power amplifier

Beam power pentode designed for use in horizontal deflection circuits of color television receivers.

Magnoval type used as a horizontal-deflection amplifier in color television receivers.

Heater-cathode type twin triode designed for use as a class B power amplifier in the output stage of a-c or battery operated equipment. It may be used in other applications such as a biased detector, oscillator phase inverter or class A amplifier

Telefunken Brand. Miniature medium-mu twin triode intended for service in radio and television receivers or in audio amplifiers.

Combines a high mu triode and two independent diode units in the 7-pin miniature construction. It permits a single tube to function as detector, AVC rectifier, and audio amplifier.

This is a set of measured vacuum tubes for use in TV-7 vacuum tube tester calibration. The values for each vacuum tube will be measured and included for the purpose of calibrating your own TV-7 tester at home. Steps for this calibration can be found online. Three tubes will be included:

• 6L6
• 6AU6
• 12AT7

These tubes are tested at the following settings: Tube Filament Settings Bias Shunt Range 6L6 6.3 HS5-3481 23 0 D Tube Filament Settings Bias Shunt Range 6AU6 6.3 ET1-5672 16 0 B Tube Filament Settings Bias Shunt Range 12AT7 12.6 EV7-6080 10 0 C Note that brands are not guaranteed to match photograph.

Beam power amplifier designed primarily for use in the output stage of a-c/d-c receivers. It has high power sensitivity and high efficiency at relatively low plate and screen voltages.

Low-mu twin power triode

Beam power tube - high power sensitivity RCA "Dark Heater" with 12 to 15 volt range.