look at my
CORROSION TOPICS page. Lots
unfortunate mistakes and cures. Complete with closeups!!!
Lafayette TE-18 GDO is an AC line powered GDO with a range of
360 kHz through 220 MHz, using eight
plug-in coils and a single 6AF4A vacuum
tube. The meter movement is a nicely sensitive 500 uA movement,
calibrated in increments of 50 uA each. A highlighted note within the
manual states: "ALWAYS
INSERT A COIL WITH THE CODE LETTER FACING YOU WHEN VIEWING THE TE-18
FROM THE FRONT."
The two manual pages below
took over 10 hours of time due to the age on the manual-so if you need
more than this let me know, and I'll email scans of specific page
requests.. Select the right-most schematic (with the
RED border) for the PDF version of the
right is a comparison of what is either a private-labeled GDO,
manufactured for some industrial market; OR a
very early version
of the Lafayette. All of the lettering is
silk-screened on the TE-18 model(s) yet
there is no "Lafayette" on this one. Also,
the small slide switches have different colors. As with most of my
photos, click on it for the higher resolution version.
The later model Lafayette is the
TE-57 shown below:
for the large picture:
Lafayette TE-57 (aka Model 99-2503)
is an AC-powered 6 coil GDO covering 1.7 - 180 MHz.
It uses a single 6CW4 Nuvistor as the
oscillator tube. The unit weighs around 1.5 lbs (1.47 kg) and was in
manufacture around 1965.
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