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RCA 57B Oscilloscope

 

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Small Vintage 3"  Oscilloscope
RCA model WO-57B ca: 1951

Vintage recurrent sweep 'scope that's been electronically restored and calibrated. This type of scope in very useful for doing sweep alignment on early television and FM radios. Some even do sweep alignment for precise IF alignment on the early high end AM radios. It's also quite useful for audio work.

  < manual for above & other RCA Service & Instruction manuals are available
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