(ex-W6OOQ)
Escondido, CA
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The K3QEP Operating Position: At left is the Johnson Desk Kilowatt, excited by the Johnson Ranger above it. The Collins 75A4 is the primary receiver while the Collins R-388 serves as an all-band auxiliary. The Johnson Kilowatt Matchbox at right interfaces to a loop antenna fed with balanced line. The setup is completed with a Heath SB-614 station monitor and a decidedly retro-looking D-104 microphone. Behind the D-104 is a Hammarlund SP-600 receiver. |
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The
Heavy Metal Dept. at K3QEP: Large grey box at right
is a Gates
BC-1G ex-broadcast rig used on 160 meters. Racks
contain
other Home-Brew Transmitters and Amplifiers as well as a National
NC-303 receiver, mod monitor and scope. Audio chain is a
Gates
'Producer' Console driving a Gates Limiting
Amplifier. |
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The
Balanced-Line Tuner at K3QEP: Each coil is wound with 50 feet
of
quarter-inch copper tubing and the variable capacitor has a
1-inch plate spacing. Bob reports the inductors show no sign
of
heating and the capacitor does not arc-over when he drives his
full-size loop antenna on 160 meters with full legal-limit power
through this impedance-matching network. |
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Whatizzit??
A desk display made from the neutralizing capacitor and
final-tube mounts of a Gates BC-1F broadcast transmitter. |
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The
HF mobile antenna system on the K3QEP service van. The
weather-proof box contains a DC motor coupled to a heavy-duty gearbox
that can raise and lower the Hustler antenna is about 5 seconds.
K3QEP is frequently heard on 75 and 40 meters AM during the day as he
tends to his electronics businesses around Escondido. |
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The HF mobile antenna system showing the Hustler antenna in the stowed position. |
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The Hustler antenna in the raised position and listening on 7293. |
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Inside
picture of the motor/gear enclosure. The big gear box on the left was
orginally attached to a 110 volt AC/DC motor (Not reversible) which
could not be removed from the gear box without some trouble. The
solution was to connect a NEW motor at the rear of the old motor, the
latter having a one-quarter-inch through-shaft which facilitated the
coupling. As can be seen, all of this is mounted on a plywood board which is screwed to the fiberglass weatherproof enclosure, one of several purchased at the Mesa Hamfest a few years ago. The rest of the parts came from the extensive K3QEP junkbox and from local electronics/surplus stores in San Diego. |
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A
closeup the insulator and the machined aluminum block. The insulator is
a type used in electrical power installations and was found at the
local swap meet. All of the screws are stainless steel. |
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