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Author Topic: Micronta / Radio Shack meter  (Read 2346 times)
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W4RFM
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« on: December 07, 2015, 06:22:10 PM »
Does anyone know the movement used in the Mircronta "better" swr/power meter? The sample is pretty good, and I thought I would use it with better meters on a panel. I am guessing they are 100 micro amp or similar. Anyone know? Anyone, anyone, Buehler?
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BOB / W4RFM  \\\\\\\"I have looked far and wide, (I also checked near and narrow)\\\\\\\"
Pete, WA2CWA
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« Reply #1 on: December 07, 2015, 07:38:40 PM »
It would be helpful to have the actual model number of the swr/power meter. They made a lot of them over the years.
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
W4RFM
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« Reply #2 on: December 07, 2015, 08:50:24 PM »
Good idea. the 21-520A meter made in Korea.
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BOB / W4RFM  \\\\\\\"I have looked far and wide, (I also checked near and narrow)\\\\\\\"
Pete, WA2CWA
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« Reply #3 on: December 07, 2015, 09:11:47 PM »
A quick Google:
http://www.qsl.net/w/wb4kdi//RadioShack/21-520A/
It's on the schematic.
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Pete, WA2CWA - "A Cluttered Desk is a Sign of Genius"
W4RFM
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« Reply #4 on: December 08, 2015, 10:45:59 AM »
Thanks Pete, I am a regular Google fan, but I had no idea that would be available.
I am going to get better meters and mount it on a 2U rack panel and calibrate it against my Bird, nice little winter project.
 Have a Happy Holiday Season.
Bob
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BOB / W4RFM  \\\\\\\"I have looked far and wide, (I also checked near and narrow)\\\\\\\"
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