'How to build a two valve set', No 4, Godfrey Philips cigarette card, 1925.
2 4 c m
40cm
actual image size: 32cm x 16cm

'How to build a two valve set', No 4, Godfrey Philips cigarette card, 1925.

© Science Museum / Science & Society Picture Library

Description

The reverse of the card reads: 'Fixing the Tuning Condenser. The variable condenser is an "Ormond" .0005 micro farad S L F No 3 and is fitted into the 3/8-inch hole nearest to the left of the panel when viewed from the front. The fixing is the well-known "one-hole" method, the instrument being held in place by a single nut, which is secured firmly by means of a suitable spanner. Care should be taken when handling to avoid bending or damaging the thin vanes. The slow motion dial is also shown on the front of the bench.'
 

Image Ref.

10421564
 

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