(Louis Meulstee’s web site)

Home Fullerphone HAC Gibson Girl Radio books Dutch PTT Lamps Key and Plug  SSF Mine detectors

Other Topics

The pages were added over the years primarily because I have an interest in the subjects. When available, additions and updates will be made.

H.A.C. Short-Wave Products kits.

In most of the leading British radio magazines, notably Practical Wireless and the  Short Wave Magazine, 'H.A.C.' Short-Wave Products ('H.A.C.' = Hear All Continents) advertised up to the early 1980s with simple shortwave receiver kits.


In this section is posted the history, technical description and operational use of the Fullerphone, a unique and not very commonly known DC Morse line telegraph set. Explained is how this simple, but ingenious little set solved the problems of overhearing and enabled communication through long and leaky field lines.

Radio and Television in boy's books (Dutch language!).

In children's books in the period 1920 to the 1960s, the main subject was often radio and television. In this section are front cover illustrations and descriptions of a selection of Dutch boy's books which had one thing in common: they were thrilling and still most enjoyable to read!

Dutch PTT.

Mobilofoon, Semafoon, and the fixed radio station Kootwijk Radio are the topics of a triptych with illustrated short historical stories about three radio-related departments of the Dutch PTT (now KPN) up to the 1990s.

Gibson Girl.

The evolution of Air-Sea rescue transmitters with many pictures, circuit diagrams and technical data in three parts from World War 2 to the 1980s.

Fullerphone topics. HAC topics. Gibson Girl topics. Jongensboeken topics. Mobile radio topics.

The ‘Other Topics’ pages below have no direct connection with the main topic of the site: the technical history and development of British Army radio communication.

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‘Lamps, Operator’ WftW Pamphlet No. 2 (Previously ‘An overview’.)

Small operator lamps were issued with most British (and Commonwealth) Army vehicle and ground radio stations, normally powered directly from a socket fitted on the front panel of the set. This overview shows the presently known versions and variations. Please note that it is also available as a PDF on the download page.


‘Mystery Set SSF Mk.II’

Quite a number of years ago an SSF Mk.II transmitter-receiver was donated to the Amateur Radio Museum ’Jan Corver’, located in Budel, The Netherlands. At that time nobody could identify the set and its function, and up to the present day it remains to be a mystery.

(Will be moved to the ‘Various’ series along with the ‘Edac’).


’Key and Plug Assemblies’ (Previously ‘An overview …’)

Key and Plug Assemblies were essential parts of most British (and Commonwealth) Army wireless sets and stations. This overview shows the currently known types and versions of these Morse key assemblies, spanning the period from the late 1930s until the 1950s when the Larkspur range of equipment started coming into service.

Key and Plug Assemblies

Mystery Set ‘EDAC’

An ‘EDAC’, a partly transistorised miniature shortwave transceiver, was found in Australia. So far nothing had been found relating to its background.

Was it a modernised version of the SSD Mk.II?

(In preparation and expected late 2024 in the ‘Various’ series).

Various Kwk Radio Semafoon Home
Wireless for the warrior
URL HOMEPAGE www.wftw.nl