1940 AVO Valve Tester Instructions And Valve Data Charts Booklets

These are original, rare, 1940 AVO Valve Tester Instructions And Valve Data Charts Booklets published by AVO: (Acweeco: Automatic Coil Winder And Electrical Equipment Co. Ltd).

In fair condition with scuffs, discolouration, stains, and a few bumps on the edges commensurate with age and use. 

Two small soft back / paperback booklets: -

1. The AVO Valve Tester Valve Data Charts 1940: comprising 22 pages of chart data for Valves including Marconi , Mullard, Mazda and some American 'tubes.' Approximate Size: 21.6 x 14 x 0.3cm
2. Instructions for using the AVO Valve Tester: this is for the two panel Mk1 AVO valve tester dating to the late 1930s/early 1940s. Booklet consists of 8 pages. Approx. Size 18.5 x 12.2 x 0.2cm

A wealth of information for the 1940 AVO valve tester and valve enthusiast

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