The Cunningham Radio Tubes Manual

The Cunningham Radio Tubes Manual

In order to find out more about radio tubes, you might want to buy the Cunningham radio tubes manual. Published in 1934, it contains extensive information on the characteristics and use of a number of different radio tubes. It also includes application notes and charts. It is a must-have resource for anyone who works with radios.

The cunningham radio tubes manual

After the RCA purchased Cunningham, the company published the Cunningham radio tubes manual. It features extensive characteristics, charts, and application notes. This book is a great resource for people who want to learn about radio tubes and how they work. It can be used as a reference manual and is a great reference for those who are just starting out with radio tubes.

The manual contains information on some 20 tubes, plus other items. It also includes a few pages on Telefunken tubes, which were used in digital circuits. The Cunningham radio tubes manual was written by Peter den Boer, with contributions from John Atwood, Peter den Boer, and Tung-Cheung Ma.

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Electrons and Electrodes

Electrons and Electrodes in the Cunnigham radio tubes manual contain information on the properties of radio tubes. These types of tubes can be used to make audio, video, and telecommunications devices. Several types of these devices exist today. In addition to the basic types of radio tubes, the manual contains information on specialty tubes. Specialty tubes are designed to provide optimal performance in a specific application. For example, some of the more modern tubes are multi-electrode.

In radio tubes, electrons are not all sent to the plate. Some stay on the cathode. In order to pass through a tube, electrons must escape from the cathode. When an electron leaves the cathode, it experiences a space charge. This charge repels other electrons from the cathode, thus impeding their passage to the plate. The amount of space-charge depends on the temperature of the cathode and the potential of the plate. The higher the plate potential, the less likely electrons will be repelled by other electrons.

The electrostatic system of a triode consists of two electrodes and a grid. The electrodes act like the plates of a small condenser. These electrodes are connected by a grid, which has two insulating properties. The grid and plate have capacitances. The capacitance between the two electrodes is known as the interelectrode capacitance. These capacitances can affect the performance of a radio tube. This is why an accurate voltmeter is necessary for proper tube operation.

Manufacture of Cunningham Tubes

The Manufacture of Cunningham tubes began in 1915 when Elmer T. Cunningham established the E.T. Cunningham, Inc. in Harrison, New Jersey. The company began selling tubes in August 1915. The company also used the brand name Amplitron. Production stopped in June 1917 after World War I, but the company resumed production in June 1919. It was at this point that Elmer Cunningham’s patents were infringed.

At that time, Elmer Cunningham had formed a partnership with Lee deForest. The two decided to work out an arrangement to supply Cunningham with tubes until the patent expired. The two companies selected samples and then supplied them in cartons for delivery. They paid Cunningham a discount of about 20 percent compared to the net price.

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Radio Tube Characteristics

In 1934, Cunningham published a manual on radio tubes called the Cunningham Radio Tube Characteristics Manual. This manual includes detailed descriptions and characteristics of all types of Cunningham radio tubes, as well as application notes. The manual was also helpful for understanding how various types of radio tubes operate.

The first cunningham tubes were used in ship-to-shore radio communication. They had glass envelopes and were referred to as dome type. The company that marketed these tubes was GE. The company eventually developed the RCA Radiotron, Inc. manufacturing subsidiary. This type of tube was used in military and police equipment.

Radio Tube Applications

This manual contains information on a variety of different radio tubes and their uses. The high-letter tubes were usually amplifiers, while the low-letter tubes were rectifiers. For example, the 6Y6 was an amplifier, while the 5Y3 was a rectifier. Sometimes, a group of tubes was released under a single RMA. Some of these groups were the 6C5 oscillator and detector, the 6L7 power amplifier, and the 6J7 (AVC).

Tubes were first categorized by manufacturer’s designation, and later, they were given a part number. The first two digits on an RCA tube represented the manufacturer, and the three-digit number was its model number. Likewise, the last two digits were part numbers, and “special purpose” tubes had a four-digit number.

After the RCA purchased Cunningham in 1934, the company published the Cunningham radio tubes manual. This manual details the characteristics of the different radio tubes, and includes extensive charts and application notes. The information in this manual is invaluable for amateurs, technicians, and experimenters alike.

RCA Radiotron – Cunningham Radio Tube Manual RC-11

The RCA Radiotron – Cunningham radio tube manual has been produced to help anyone working with radio cubes and their associated equipment. It is a reference book that has been revised several times. It is divided into two sections, one on each type of tube. Each section contains complete data and a summary of obsolete tubes. The first of the series was published in 1932, and the final volume appeared in 1975.


A TRIPLE-GRID SUPER-CON control amplifier is a type of tube that has multiple independent control grids and a variable-u configuration. It is useful for intermediate and radio-frequency stages and has a remote cut-off characteristic.

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