Quote:
Originally Posted by kbmuri
I've got this coming in the mail next week: http://cgi.ebay.com/ws/eBayISAPI.dll...m=170122318458 which may or may not be calibrated either so I guess I still need some absolute reference. But at least it'll be another opinion. The price was very right, and nixie tubes are cool, but I may want to look into buying something newer and more likely to be using modern technology. Anybody out there have a strong preference/recommedation?
Sorry, I guess I didn't mention the the Sams alignment procedure called for removing the channel 13 turret coils and then tuning to channel 13, to disable the local oscillator "to prevent erroneous indications". Reinstalling them was the last step after the IF alignment procedure. Of course I tuned back to channel 3 to view the VCR output.
I'll give it another shot before parting it out... |
A way to test the counter is to get a crystal oscillator using a known frequency crystal (like a color subcarrier crystal, 3.579545MHz). And see what the counter says. But counters are a bit fussy to work with, they need a minimum level to count accurately. Another and easier way is to connect your signal generator to an antenna and the counter, mess with the levels so you get a reading that looks about what you'd expect. Set the frequency of the generator to match that of a local mid signal strength AM radio station of known carrier frequency and zero beat the signal generator as heard on an Am radio in the room. And see what the counter says. AM radio station carriers are quite precise to something like 0.1 part per million. If it yields a correct (or very close) number, it should give accurate readings for the alignment frequencies for the TV work.
Please don't part the TV out, someone here at AK will probably be interested in it. As it looks like all the major hard to find replacements for parts look to be working well (the CRT, flyback, yoke, power transformer and such).