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On Sep 22, 8:37*am, Jeff Liebermann wrote:
On Sun, 21 Sep 2008 22:25:33 -0700 (PDT), charrid wrote: "dried out". *If everything looks like it's working (display lights up and digits change when thrashing the buttons), then it might be the time base oscillator or dividers. *Try an external time base oscillator in case the crystal has quit. * Power supply was also my first thought, but Nixies light up and if I try hard, I can change some digits. Time base fault sounds like a good bet. Thanks for the hint. Photo of the counter at bottom of page: http://www.k5cm.com/k1ggiFMTMethod.htm I have already emailed k5cm asking if he has the manual The have a few manuals online: http://www.ietlabs.com/pdf/Manuals/index.html but not the GR1192B. *Send them email as I'm sure they have a printed copy in the archives that only needs to be scanned. *Maybe just the schematic and block diagram. I did get to ietlabs site in my first searches. Never thought of mailing them for a scan, though. I'll give them a try. old equipment all too often: http://802.11junk.com/jeffl/pics/home/slides/lab.html Note: *It's a lab, not a museum. I don't think 20-30 year old HP's are at all museum pieces - they are still in their prime. Cool. *One question. *Is the frequency range of the Eico the same as the Heathkit ranges that I listed? *I'm curious. Eico 710 has 8 coils starting below AM BC band: L1 0.4 - 0.7 L2 0.7-1.38 L3 1.38-2.9 L3 2.9-7.5 L4 7.5-18 L5 18-42 L6 42-100 L7 100-250 Rich, OK8RF -- Jeff Liebermann * * 150 Felker St #D * *http://www.LearnByDestroying.com Santa Cruz CA 95060http://802.11junk.com Skype: JeffLiebermann * * AE6KS * *831-336-2558 |
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