Type
33MW
This phone was introduced in 1910, and in bulk purchases from 1918 as a post-War
emergency measure until the Type 35 could be delivered in quantity. Its original
Tele number is unknown. It was made by Stromberg
Carlson in the United States and was fitted with the solid back
transmitter. The APO seems to have bought in a range of phones around this
time, probably looking for a replacement for the elderly Tele No 1, the Commonwealth
Ericsson. This phone is a typical U.S. style, big and boxy. It featured an
adjustable lightning arrestor on the right hand side on the pre-War models.
In most respects it is similar to the Western Electric Model 317, but is slightly
taller due to the higher generator.
As
well as the Australian Post Office, the Commonwealth National Railways also purchased
the phone for the Trans-Australia line, completed in 1918. With experience
with the phone, the APO redesigned the phone and issued the Type 133. It
had the new Inset transmitter and no lightning arrestor but was otherwise similar.
It must have been a fairly good phone, because the APO ordered large numbers.
Purchases continued during World War 1, but by the end of the war the APO had
decided to standardise on the British Ericsson (Type 35)
233MWH
By 1942 the PMG was running out of magneto telephones. A substantial amount
of Australia's phones was still magneto, but supplies from Britain were interrupted
by the Second World War. The older Commonwealth Ericsson telephones were wearing
out, as were the other early magneto fixed transmitter phones. Many customers
were used to the Ericsson handset, and would not like going back to the separate
transmitter and receiver arrangement available on other wall phones. The only
alternative for a magneto wall phone was to mount a table phone on a wall bracket
and mount a separate generator box with it. Commonwealth Ericsson phones,
because of their high standard of finish and elaborate woodwork, were expensive
to refurbish. A reasonable supply of recovered Stromberg Carlson and Ericsson
phones of the Tele 33 and Tele 35 models was available, and these were fairly
inexpensive to refurbish. The APO decided to renovate these phones and add a handset
to modernise them. A side benefit to the APO was the extra rental charged at that
time for handset phones. On June 1 , 1942, an Engineering Instruction E2020 was
released introducing the new phones. Where possible, a Stromberg Carlson
was to be replaced with an upgraded Stromberg Carlson, and likewise for the Ericsson
models. They were not to be used to replace a Commonwealth Ericsson, however.
The bakelite handset gave better transmission than the old fixed transmitter models,
but this was not always the case with an Ericsson handset. The phones were quite
suitable for long rural lines.
A "How To Call" instruction plate (used to cover the old transmitter
holes) was mounted vertically to cover the marks left by the transmitter mount.
Writing slopes often had to be replaced, and there are different patterns and
timbers used. Each phone was fitted with a note clip at the top of the writing
slope.
It is possible that similar telephones from Western Electric (later STC) and
Kellogg may also have been refurbished under the 233 number. but this is unconfirmed.
I have seen a WE telephone so reconditioned , but the circuit diagram was unreadable.
This would be the only way to confirm that it was an APO conversion.
A similar refurbishment was sometimes carried out in New Zealand, but the old
transmitter holes were simply filled with wooden plugs.
To Type 35MW To
Tele No 45 To
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