Heathkit HR-20, HX-20
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| Jun 6th 2014, 18:14 | |
K8ISSTotal Topics: 0 Total Posts: 0 |
I am restoring a vintage Heathkit HR-20 and HX-20 and plan to convert the frequency display to digital. I would like to know if anyone has seen an aritcle in qst or any other publication on this subject. I thought I saw an article in qst a few years ago on this subject, but can not find it now. Any help will be appreciated. K8ISS |
| Jun 6th 2014, 19:15 | |
W1VTSuper Moderator Total Topics: 0 Total Posts: 0 |
http://www.aade.com/#dfd Commercial product for doing adding a digital display to old analog receivers--does the hard part of adding in offsets due to frequency conversion. Zack W1VT ARRL Senior Lab Engineer |
| Jun 25th 2014, 13:34 | |
K8ISSTotal Topics: 0 Total Posts: 0 |
Thank you Zack, that makes sense, and another thing is that when trying the display on my vintage signal generator that drifts quite a bit, the display is constantly changing. Thanks again, John, K8ISS |
| Jun 26th 2014, 03:27 | |
KE8DOTotal Topics: 0 Total Posts: 0 |
I build a digital display for my Heathkit HW-100, using 7400 TTL and using the circuit from the one that Heathkit sold as a guide. I tapped into my HW-2036 for the timebase. It worked good, except for the digital noise getting into the receiver. 73 Don KE8DO |
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