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Amateur Radio Station G4FUI's photostream |
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Velleman PIC Programmer - K8048
Assembled from a kit, for programming a wide range of "PIC" microcontrollers. Designed to be...
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Uploaded on Dec 28, 2011
Practical Wireless Crystal Calibrator - 1
A design from some time in the early 1980s, I think, or maybe a little earlier. A...
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Uploaded on Oct 26, 2011
QRSS Transmitter - a Kit by QRP Labs
This type of little transmitter is used all over the world by "QRSS" enthusiasts. It comprises...
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Uploaded on Sep 29, 2011
The Voltage Probe Antenna, almost complete
In fact, to move this project to the evaluation phase, all that was added aferwards were (a) an LED to...
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Uploaded on Aug 6, 2011
The Voltage Probe Antenna under construction
In my garden shed (as if you couldn't work that out for yourself!) The entire circuit was constructed on...
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Uploaded on Aug 6, 2011
TS-180S - PLL Diode Matrix
On this board various functions are derived depending on the position of the band switch :- selection of...
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Uploaded on Jun 19, 2011
Trio/Kenwood TS-180S PLL Unit
Two (so far) completely unrelated faults have been unearthed and repaired in this unit - a faulty...
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Uploaded on Jun 19, 2011
FT-107M - X-Lock installation
On the test bench. There was a certain amount of setting up required, getting the control loop time...
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Uploaded on Jun 4, 2011
FT-107M X-lock - how it all fits ...
The X-Lock by Cumbria Designs fits beautifully into this radio, and performs as well as it looks!
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Uploaded on Jun 4, 2011
TS-180S Memory Unit (well the control part of it anyway ...)
Some classic early microprocessor technology incorporated into this revolutionary (for its...
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Uploaded on Jun 4, 2011
TS-180S Under Repair
The IF unit is swung out to allow access to the Memory Unit. Coilpack unit at the top (VERY Trio/Kenwood...
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Uploaded on Jun 4, 2011
Old-Style 144MHz AM/CW Crystal Controlled Transmitter - 3
Under the chassis, illustrating classical valve equipment construction techniques. Quite a bit of "tin bashing" was required!
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Uploaded on Feb 5, 2011
Old-Style 144MHz AM/CW Crystal Controlled Transmitter - 2
Inside view - the grubby condition is due to it languishing in my garage for more years than I care...
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Uploaded on Feb 5, 2011
Old-Style 144MHz AM/CW Crystal Controlled Transmitter - 1
This is how 144MHz VHF used to be done, in the late 1960s, early 1970s. A home built transmitter (By...
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Uploaded on Feb 5, 2011
Homebrew Receiver Splitter - inside
Works on the "Wilkinson" principle of parallelled transmission lines. Google...
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Uploaded on Feb 5, 2011
Ever Ready Sky Leader ...
Yaesu FT-107M
The "Other" Eden...
Trio/Kenwood Classic Radio...
Yaesu Classic Radio...
Homebrew Gear
Other (Mostly)...
