R-390A:
R-390A:
Click on the R-390A for its schematics in Visio and PDF formats.
R-390A LINE AND CARRIER LEVEL METERS:
Click on the meter face to see some meters I have available as substitutes for the originals.
COLLINS PTO TEST SET:
Click on the meter face to see the test set I built and use checking out the pto in Collins S-line and KWM-2 series equipments.
10
MHz FREQUENCY STANDARD
Click on the label to see my frequency standard using the HP 10544A crystal oven.
R390A MECHANICAL FILTER INTERNALS:
Click on the filter to see pictures when the shell is peeled away on one of the mechanical filters.
MICROWAVE OVEN TRANSFORMERS:
Click on the transformer for "Investigations on Using a Salvaged Mircrowave Oven Transformer".
COLLINS TYPE 516F-2 POWER SUPPLY:
Click on the power supply for "My Equal to a 516F-2 Power
Supply Project". Used to power Collins 32S-3 transmitters and KWM-2 transceivers.
SX-28 RECAPPING:
Click on the SX28 for details on my recapping and renovation job.
7.5-15 VDC 30 AMP REGULATED POWER SUPPLY
Click on the power supply picture for a pictoral trek thru the design and construction of this power supply.
EX PANDED SCALE VOLTMETER
Click on the meter for a description of my design for an expanded scale voltmeter to increase the resolution in a selected region.
HEAT DISSIPATING TUBE SHIELDS:
Click on the heat dissipating tube shields for details like part numbers and the effectiveness of these add-ons.
TUBESTERS:
Click on the tubester picture for all the literature I've
been able to collect on these solid state tube substitutes for Collins receivers
and transmitters. Also included are schematics of ones I've gotten my hands
on and been able to surgically examine.
CV-591A SSB CONVERTER MODS:
Click on the CV-591A front panel for details on a couple mods I did to mine to really improve its operation.
HQ-100A DIGITAL READOUT:
Click on the digital display for details on the digital readout I added to my HQ-100A.
REMAKING METER SCALES USING VISIO SOFTWARE:
Click on the meter scale for details on how I go about remaking all those meter scales using Visio software.
KH6GRT KEYER:
Click on the keyer picture for details of the keyer I use when
I'm not using the straight key.
NOAH'S FLOOD ALARM MOD:
Click on the picture for a mod to this water sensor that
increases the battery life 200 times.
