Preface to Book 4

Circuit information is the basic essential ingredient to successful Radio restoration, and circuits for most sets from the late thirties were made available by the well known series of Australian Official Service Manual (AORSM) which was published yearly (except during World War ll) from 1937 to 1955, and they still serve us well.

Occasionally service information was omitted from AORSM, for some of the Radio sets manufactured but the omitted service information has since been published by the Historical Radio Society of Australia (HRSA), firstly by the efforts of the Society founder Ray Kelly, in 1998 - 2003, and again in 2017 by HRSA member Philip Leahy; the latter reformatted, upgraded and fully indexed in HRSA Circuit Book 3, published with a series of fully indexed circuit books in 2017, as listed below.

When AORSM ceased publication in 1955, valve radios were still being manufactured in Australia although service data was not readily available, but again it was HRSA founder Ray Kelly who put together much of what service data was then available for the post 1955 receivers and published some of it in 1997 to 2003.

Philip Leahy has again published reformatted data for the HRSA in 2017, augmented with later service data (to1968) and fully indexed in HRSA Circuit Books 4, 5, and 6.

It is proposed to publish a Master Index to all the above books published in 2017.

The Master Index will indicate with clarity if a circuit is available for a certain brand and model, and exactly in which HRSA Circuit Book to find it. The Master Index to circuits would be very useful if it could be included on the HRSA web page, but that may be for a later day about which members will be advised.


Thanks to Jim Easson (Member 2218) who kindly performed an 'archaeological dig' at the HRSA library to recover some of the original work by Ray Kelly, and to Brian Goldsmith (Member 727) who extracted some 271 additional pages of data from a later catalogue leading to a revision of books 4 and 5 and the addition of book 6.

Philip Leahy
Member 296
Melbourne June 2017