Musen Co. Amateur Radio Equipment in Australia During The 1960's
by Greg Whiter, VK4IG (Ex VK3CA)
Shown below are Block Diagrams of the FT-100B and the FTDX100, 5 band SSB/CW/AM mainly solid state transceivers.
that the block diagrams of the FT-100B and the FTDX100 are almost
identical. Both germanium and silicon transistors were
used in almost equal quantities, unlike the original
FT-100 which used nearly all germanium devices, and the
later FT-101 which used nearly all silicon devices.
By the time Yaesu released the FT-100B they had refined their solid state transceiver design considerably, having used the model's FT-100 Mark 1 and 2 to iron out problem areas. Being at the forefront of technology when it was first released, the original Mark 1 FT-100 did have a few teething problems, to the extent that Bail's published their own three page Trouble Shooting Guide for it.
Fred Bail passed away in the late 1970's, Jim Bail passed away in the early 1980's. Following Fred's passing their company was sold to Stan Roberts of Teletramel, who continued to run Bail Electronic Services into the early 1990's from the Victorian country town of Wangaratta.
The author would
be happy to hear from anybody who has very early Yaesu equipment,
such as FL-20 Mark's 1 and 2, or FL-100B Mark's 1 and 2. By way
of some background information on the author, Greg Whiter was
employed by Bail Electronic Services (see
1974 staff photo) from the late
1960's through to 1977. Following this period he formed the company GFS
Electronic Imports, GFS Electronics and then
Portable Masts Australia Pty Ltd, of which he
is a director today.
Any comments on this web site should be directed to the author, Greg Whiter at : GregWhiter@portablemasts.com.au
|Next Page - FT-100 Trouble Shooting Guide|
Pages at this site, include: FL-100B,
the first Australian Yaesu radio, F-Line
of the mid 1960's, FL-10/40 Details,
photos, BES 1974 Staff
Cards, FL-50 Magazine
and photos, Photo and details of Yaesu's
first SSB Transceiver, the 1966 released solid state
Trouble Shooting Guide is shown HERE,
the 1968 released FTdx400,
The Yaesu Museum
Other web articles by the same author: The Chronological History of the Development of Radio
Origins Of The Handie Talkie
The History Of Clark Masts
The Early History of GFS Electronics
Any comments on this article should be directed to the author, Greg Whiter at: GregWhiter@portablemasts.com.au
page is sponsored by Portable
Masts Australia Pty Ltd
Suppliers of Fast Erecting air operated telescopic portable masts and towers as well as Debeglass Non-Conductive Guy Wire
For product details and a catalogue covering over 200 different mast types of Clark Masts go to PMA's web site.
Phone: +61 402130692
PMA Contact Details
opyright © Greg D. Whiter 2020 - All rights Reserved
This page was last updated04-03-2020