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Author Topic: What is this?  (Read 1423 times)
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W5UF
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« on: January 07, 2019, 12:26:47 PM »
I know it’s a tuner network but who made it and what was it used in ? Anyone with any info?

* 17567F93-666F-4A5A-B19D-82D6A9289EFF.jpeg (1976.16 KB, 3264x2448 - viewed 373 times.)
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KC2ZFA
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« Reply #1 on: January 07, 2019, 02:41:25 PM »
it's a National MB-20 multi-band tank...it predates the MB-40L (fixed link) and MB-40SL (swinging link) units whose manual you can find in the Tech section of the AMWindow here. I believe that the MB20 and the MB40L (fixed link) are electrically identical.
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