Attached photos
of the late Vern Lovett ZL3AQ. Vern’s
antennas: Top 2 x 26 element loop yagis for 23 cm fed via two lengths of surplus
75 ohm Helical Membrane hard-line and combined within his shack. Two metre and
6 m antennas with a 70 cm curved reflector on the back of his tower. Vern had
to remember to rotate his antennas by 180° when on this band. Antennas mounted
on a surplus wind mill tower and rotated via a right angle drive at the
base, through the wall of his house into his shack. Almost all equipment
was home-made and the photos show a collection of his work. Pictures corteisy Rod ZL3NW
Vern ZL3AQ antennas
70 cm cavity amp ZL3AQ
4CX250B 432 MHz final ZL3AQ
Up converter 28 to 144 MHz
28 to 144 internals
432 varacter tripler inside
432 varactortripler
1152 local osc for 1296
1152 local oscillator
1296 amp keyer
1296 converter
1296 F S meter
1296 pre-amp
1296 preamp inner
1296 used to key signal source
ZL3AQ 23 cm beacon rear
ZL3AQ 23 cm beacon
Below; notes recorded de Rod ZL3NW (ex ZL3TAL)
A collection of photos also show several of his Modulated Oscillator using a pair of 8012 valves on 70 cm. I see in my old logs I worked Vern using this in 1968 and we compared his transverter of some 10 watts. The modulated oscillator was much stronger. This was using AM but let’s face it I am sure there was plenty of FM on the Modulated oscillator.
Push-pull, parallel-plate transmission line between anode-grid, loop-coupled output.
Modulated Oscillator using a pair of 8012 valves on 70 cm
