Retrovox Archives Technical Documention

Selected documents from the Retrovox Archives scanned at 300 dpi from the original hard copy documents. No copyright is implied or assumed. All files in Adobe Acrobat (pdf) format.

To download rightclick on the URL & select "Save Target as.."

Retrovox Archives downloads: technical papers, construction projects, application notes, valve data, circuit diagrams (schematics), complete handbooks, advertisments etc. Most is from mid-C20 Australian publication

Construction Articles from Australian Electronics Journals

 

An Amplifier for a Guitar Guitar Amp with EF86, 12AX7, push-pull 6BW6's and 5Y3GT. Philip Watson, Radio and Hobbies December 1954 PDF download 1.1MB Note: type 6BW6 is a nine pin equivalent of type 6V6GT

 

Playmaster 116 Guitar Amplifier 40 watts output with two 6DQ6A output tubes. From Electronics Australia June 1967 PDF download 1.2MB

 

The Standard Amplifier #2 Single ended pentode 4 watts output. 12AX7, 6BV7, 5Y3GT. Philip Watson, Radio and Hobbies September 1954 PDF download 1MB Type 6BV7 specs see valve data page

 

The Playmaster Seven 10 watts output. Uses 2x 6AU6 and 2x 6BW6 plus 5V4G rectifier. Philip Watson, Radio and Hobbies June 1954 PDF download 1.1MB Note: type 6BW6 is a nine pin equivalent of type 6V6GT

 

AWV Design Lab Amplifiers

4.5 watt single ended pentode amplifier 6AU6/6AQ5/6X4. Complete design details, full circuit diagram, curves and measured results with different types of output transformers. AWV Radiotronics, March 1955. By the staff of the Radiotronics laboratory PDF download 734 KB.

 

Amplifier A515: Williamson Amplifier using 807 valves. F. Langford-Smith AWV Radiotronics 1947 PDF download 840 KB

 

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