Last udated 20th February 2008

The Download Page

Manuals & Schematics, Articles From 'Radio Constructor' Magazine

Manuals

All the following manuals are in the LizardTech 'DjVu' format

• Murphy B40D Operators Manual (437Kb, 25 pages)

• Operation & Maintenance Manual for Signal Generator Type CT-212

• Test Manual for Clarke & Smith Model 8812 Schools Receiver (145Kb, 12 pages)

• Advance Model P1 Signal Generator (50Kb, 5 pages)

• Advance Model VM77B VTVM (156Kb, 10 pages)

• Codar CR70A (172Kb, 10 pages)

Schematics

• Codar CR70A Page 1and Page 2 (c.200Kb jpeg each)

• SP Radio 'Sailor' 16T (104Kb gif)

• Murphy B40D Page 1 and Page 2 and Page 3 (c.300Kb jpeg each)

• Tony Thompson's PSU for Battery Portables (26Kb jpeg)

'Miscellaneous Articles & Books'

An Important Note Concerning Copyright:. Bernards (Publishers) Ltd ceased to exist in 1975 and its assets (including, presumably, its copyrights) were transferred to a new company, Bernard Babani (Publishing) Ltd - who have not responded to my queries concerning their redistribution. With this in mind, I consider the works presented below to be in the Public Domain. Frederick James Camm died in 1959 and his works will pass in to the Public Domain in 2009 under existing UK copyright law. A few years premature, admittedly, I present the works noted below in good faith as Camm died without heirs.

• "The Mullard 5-10 Amplifier" - Ch. 18 of "Amplifiers: Design and Construction", FJ Camm, George Newnes, London, 1957 (228Kb DjVu format, 10 pages).

• "A Beginner's Guide To Radio" - FJ Camm, George Newnes Ltd., London, 1956 (2nd edition). (2158Kb DjVu format, 81 pages)

• **COMING SOON** "Radio Training Manual For the Services and the Trade", FJ Camm, George Newnes Ltd., London, 1944 (6th

• **COMING SOON** "The Superhet Manual", FJ Camm, George Newnes, London, 1940.

• " The Restoration of Valved High-Frequency Communications Receivers" Chris Parry BSc, G8JFJ. A private, web-published monograph. (616Kb PDF, 96 pages - links to another page).

• "Radio Manual: Calling Men At War" - Bernards (Publishers) Ltd., London, 1944 (192Kb DjVu format, 16 pages)

• "Modern Radio Test Gear Construction" - Bernards Radio Manuals No.45, Bernards (Publishers) Ltd., London, 1945 (1Mb DjVu format, 32 pages)

• "Radio Constructors Manual" - Lewis George, Bernards Radio Manuals No.53, Bernards (Publishers) Ltd., London, 1946 (1160Kb DjVu format, 31 pages)

• "Radio Designs Manual" - 'Radiotrician', Bernards Radio Manuals No.65, Bernards (Publishers) Ltd., London, 1948 (1181Kb DjVu format, 33 pages)

• "Communications Receivers Manual" - 'Radiotrician', Bernards Radio Manuals No.66, Bernards (Publishers) Ltd., London, 1948 (1.1Mb DjVu format, 37 pages)

• "Radio Experimental Circuits Manual" - 'Radiotrician', Bernards Radio Manuals No.72, Bernards (Publishers) Ltd., London, 1948 (944Kb DjVu format, 33 pages)

• "Using Ex-Service Radio Apparatus"; - Donald W. Thomasson, Bernards Radio Manuals No.81, Bernards (Publishers) Ltd., London, 1949 (1.2Mb DjVu format, 67 pages)

• "One Valve Receivers" - Bernards Radio Manuals No.99, Bernards (Publishers) Ltd., London, 1961 (340Kb, DjVu format, 11 pages)

• "Simple Oscilloscope Measurements For Education & Training" - Mullard Technical Service, 1960 (514Kb DjVu format, 33 pages)

• "New Range Of Miniature Battery Valves" - Mullard 'Outlook' (159Kb jpeg)

• "Compactrons: Advance In Tube Design" Page 1 (142Kb jpeg) And Page 2 (42Kb jpeg) - 'Electronics World', Oct.1960

• "The Single Compactron Multi-Band Receiver" (source unknown DjVu format)

'Radio Constructor'

NB: Maurice Woodhead also has an excellent Radio Constructor section on his website.

All the following articles are in the LizardTech 'DjVu' format

Articles Of General Interest

• Using Surplus Meters - June 1958 (72Kb, 3 pages)

• The Importance Of Good Aerial & Earth - February 1962 (49Kb, 2 pages)

• The Story Of The Valve - 4 parts from Sept. - Dec. 1965 (356Kb, 11 pages)

• Using A Slide Rule - December 1965 (45Kb, 2 pages)

• Vacuum Or Solid-State? - April 1966 (103Kb, 3 pages)

• Semiconductor Tests with an Ohmmeter - June 1966 (129Kb, 5 pages)

Articles Concerning 'Boatanchors'

• An Easily Added 'S' Meter - November 1950 (86Kb, 3 pages)

• Amplified AGC In Communications Receivers - October 1959 (126Kb, 6 pages)

• National HRO, HRO-M & HRO-MX Alignment Data - Includes schematic, December 1959 (199Kb, 5 pages)

• "A Constructor Visits The Hallicrafters Factories" - December 1961 (76Kb, 2 pages)

• "Modifications To The CR100" - August 1966 (76Kb, 4 pages)

Articles Concerning Battery Portables

• Economy Measures for All-Dry Receivers - June 1951 (116Kb, 4 pages)

• "Conversion of 1.4 Volt Superhet to Low Consumption Valves" - February 1961(78Kb, 2 pages)

• "Modernise That Valve Portable" - December 1962 (108Kb, 6 pages)

• "Converting Battery Portables To Mains Operation" - June 1963 (104Kb, 4 pages)

• "New Life For Mains-Battery Portables" - September 1965 (108Kb, 4 pages)