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Last updated 20 July 2009

General Articles. See also Films DVD.

0.18A Series-string DC Mains Valves. A Continental idea

A 1 kW Audio Amplifier.

1934 - Mullard 2 Volt Battery Valves. From the Mullard 1934-35 Valve catalogue

1934 - Mullard AC Mains Valves. From the Mullard 1934-35 Valve catalogue

1934 - Mullard Universal Valves (AC/DC). From the Mullard 1934-35 Valve catalogue

1934 - Frequency Changing. From the Mullard 1934-35 Valve catalogue

1950s Valve Manufacture. Anode pressing

1950s Valve Manufacture. Cathode spraying

1950s Valve Manufacture. EF80 Assembly

1950s Valve Manufacture. Evacuation and testing

1950s Valve Manufacture. Glass tube manufacture

1950s Valve Manufacture. Grid winding

1950s Valve Manufacture. Heater production

1950s Valve Manufacture. Making a pressed glass foot

1950s Valve Manufacture. Manufacture of Tungsten wire

1950s Valve Manufacture. Mica supports

The Azide Process. Technical article on cathode technology

Mullard Miscellaneous xx5x Series Valves. Details of the series

The Early Mullard Naming Convention. The Meaning of AC044 etc.

Mullard Circuits for Audio Amplifiers. An introduction

High-quality Audio Amplification. Chapter three from Mullard Circuits for Audio Amplifiers

The Mullard 5-20 Audio Amplifier. The original design

The Mullard 5-10 Audio Amplifier. The original design

The Mullard 3-3 Audio Amplifier. The original design

The Mullard Receiving Valve Naming Convention. How to decode ECC83 etc.

Mullard 'Straight' Screened Pentodes. SP valves from Mullard

The Mullard Transmitting & Industrial Valve Naming Convention. How to decode QQV03-20A

The New EL34 Audio Pentode. The original press release details

The Pentode. A 1933 article by Stanley Mullard

The Philips-Mullard (PM) Series. The first azide valves

Silica Valves. A Mullard speciality

 

Articles by Valve Type

Mullard's ECC83. A world series valve from Mullard

EE50 Operation. A secondary emission pentode explained

The Famous EF50 Valve of WW2. How Television helped the seeing eye of RADAR

The Mullard EF36 and EF37. Evolution to an Audio Classic

Mullard's EF86. A world series valve from Mullard

The Making of the EF80. Mullard produced a boxed set of components and a film

Mullard's EL34. A world series valve from Mullard

The New EL34 Audio Pentode. The original press release details

A Classic Unmasked. The inside of an EL37 output pentode

Mullard's EL84. A world series valve from Mullard

The EM34 in Pictures. A range of implementations for this tuning indicator

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