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Picture
Manufacturer:    National Company (USA), Malden, MA
Model:                    CRM, S#???
Vintage:                 1938
Purpose:                Monitor Scope
Condition:            Working



Comments:
This unit is as basic as can be. There is no amplifier for X or Y deflection and no sweep generator. It is a basic monitor scope, possibly used with external amplifiers. The CRT is a 913, so voltages between 10V and 100V can be observed easily. The original capacitors have been replaced and the unit works fine.
The name plate does not show a serial number, so this may have been a kit.


Documentation:
nc_crm_schematic.jpg
File Size: 77 kb
File Type: jpg
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nc_crm_ad.jpg
File Size: 31 kb
File Type: jpg
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nc_crm_news1938.jpg
File Size: 72 kb
File Type: jpg
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