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About RF Cafe
Copyright: 1996 - 2024 Web BSEE - KB3UON RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling
2 MB. Its primary purpose was to provide me with ready access to commonly needed
formulas and reference material while performing my work as an RF system and circuit
design engineer. The World Wide Web (Internet) was largely an unknown entity at
the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps
while tying up your telephone line, and a nice lady's voice announced "You've Got
Mail" when a new message arrived... All trademarks, copyrights, patents, and other rights of ownership to images
and text used on the RF Cafe website are hereby acknowl My Hobby Website: |
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RCA Test Equipment Advertisement |
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 National
Radio Institute (NRI, from whom I took a course many moons ago). Knowing
that if you wait long enough, just about everything shows up on eBay,
I did a quick check and found a few vintage RCA Institutes items, including
an
RCA Institutes Ham Radio Signal Generator Kit.On a whim, I looked on eBay for the 10 MHz oscilloscope kit that came with my NRI course, and there one was, but it had already been built (on left). I remember that the time base was calibrated by clipping a ceramic capacitor to the probe and sticking it in the wall receptacle and adjusting for 16.67 ms. Amplitude calibration was done by measuring a battery voltage with a voltmeter and adjusting accordingly. Close was good enough at the time. See all articles from Popular Electronics.
Posted 1/6/2013 |
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