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National CRO Oscilliscope

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05-21-2018, 12:05 PM

jr_tech

VideoKarma Member

Join Date: Sep 2009

Posts: 4,573

Looks like a simple ham modulation monitor, likely for displaying trapezoid patterns when connected to an AM transmitter. I suspect that it is very similar to this smaller CRM model:

http://www.oscilloscopemuseum.com/os...-crm-sxxx.html

http://www.oscilloscopemuseum.com/up..._schematic.jpg

jr

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