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Author Topic: Calling CQ on 3550khz +or- with 1920s QRP rig  (Read 468 times)

Offline ve3lyx

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Calling CQ on 3550khz +or- with 1920s QRP rig
« on: December 11, 2014, 14:40:09 UTC »
I built this 1920s Cw rig last weekend. It uses a single 01A vacuum tube and is what was called back then a TGTP (tuned grid, tuned plate). I have it to the point now I am happy with it and am testing on air immediately. I need a signal report. It will sound raspy and perhaps a bit raw to some but it should be good for a few hundred miles ATCF if past efforts count. Its main purpose is for vintage weekend QSO partys Like the Bruce Kelly event which finishes this weekend however I need to test t to be sure it is working so I need some willing ears. I should be sending a CQ with in 5 minutes of this post.
don VE3LYX

Offline ve3lyx

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Re: Calling CQ on 3550khz +or- with 1920s QRP rig
« Reply #1 on: December 11, 2014, 19:27:04 UTC »
Trying again right now within the next 5 minutes 3550 kHz. CW . Will have an unusual 1920s sound . Need a sig report.
don

Offline ve3lyx

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Re: Calling CQ on 3550khz +or- with 1920s QRP rig
« Reply #2 on: December 11, 2014, 23:58:56 UTC »
Will try again tonight 9PM EST, (2100s) 3550khz. Will take only a couple of minutes.
don

Offline ve3lyx

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Re: Calling CQ on 3550khz +or- with 1920s QRP rig
« Reply #3 on: December 17, 2014, 10:43:45 UTC »
Last weekend was the BK Memorial contest limited to contact between transmitters using design and tubes available before 1929. Power input limited to 10 watts and power out 5 watts or less. I have three such rigs now. Two built this month. I was able to work a few stations on 80M Saturday and some of the same stations on 40m sunday. I used all three rigs at some point during the weekend. A TNT (tuned plate not tuned grid) with a  45 tube running 9.3 watts in and about 3.5 out using a single 45 tube. A Hartley osc running a 01A tube with 5.3 watts in and about 2 out and a TGTP (tuned grid tuned plate) running a 01Atube at 5.6 watts in and slightly over 2 watts out. All contacts were done on a long wire, no tuner required. Average contact distance was about 400 miles ATCF. A lot of fun to say the least.
don