Elenco S-1325, dual trace, 30 Mhz oscilloscope, this scope is invaluable for tuning up linear amplfiers in Amplitude Modulated Service.
Dell ST2410 24 inch Full HD Wide screen monitor, 1920 x 1080
Keyboard and mouse.
Mackie 1202-VLZ 12 channel mic/line Pro Mixer where I add a little gain on highs and mids
Remote TV set to monitor Bird 43 power out from an amplifier in the garage.
Electro-Voice RE27N/D dynamic microphone, 150 ohm balanced output, 45 Hz to 20 kHz response. The shock mount elastic bands last about 2 years. (part number 78297).
Left: Dell XPS - Win 11 computer.
Right: Flex 5000A, 100 watts PEP CW and SSB, 25 watt carrier AM - all modes 160 through 6 meters.
Right: Astron 70M, 12.6 VDC at 70 amp regulated for the Flex 5000A.
Left: Bird 43 wattmeter.
Left: Astron 70M, 12.6 VDC at 70 amp regulated for the ten meter amplifier.
Right: Ten meter solid state amplifier - Texas Star - 1000 watts PEP. Amp coax feeds a 21 foot vertical, 5 feet above the ground in the back yard.
Ameritron AL-1200, 1500 watts PEP, (375 watt carrier AM) all modes 160 through 10 meters, (1) 3CX1200.
Left: Bird 500 watt dummy load.
Right: Lodestar SG-41G08 signal generator 100Khz - 150 Mhz.
Manual Alpha Delta antenna coax switches to amplifiers, antennas and dummy load.
They were moved out of the shack to eliminate blower noise and heat.
Homebrew 160-80-40 meter linear with a single 3CX3000F7.
Click
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to see this amplifier.
Ameritron AL-811HD linear amplifier, 160 thru 10 meters 800 watts PEP. (spare).
The 3CX3000F7 tri-band rf deck. Note: This amp originally had two tubes in the final. (thus the two meters).
5000 VDC 1.7 amp power supply.
Manual antenna selector.
160-80-40 antennas to knife switch assembly.
160 meter dipole: 245 feet of #10 copperweld, fed at the center with LMR 600 Coax, 50 feet high at one end, 15 feet at the other end running north-east to south-west.
75 meter dipole: 124 feet of #10 stranded flexible copper, fed at the center with LMR 600 Coax, 60 feet high running north-east to south-west. Since the coax is unbalanced and the dipole is balanced, the choke balun helps keep radiation off the feedline below the cold end of the balun. Since 23 feet of LMR 600 on top of thick PVC pipe is very heavy, I couldn't install the balun at the feed point, so I chose to install it 60 feet down. The 60 feet of feedline between the dipole and the balun will radiate a vertical component, but after the choke balun, feedline radiation was not detected.
3.885 SWR = 2.5 to 1 swept by Comet CAA-500 Mark II
UNDER CONSTRUCTION
40 meters:
Had this antenna at one time, now there is nothing on 40 meters.
10 meters:
Wide band 21 foot vertical CB antenna, mounted 5 feet off the ground. (it works on band openings).
