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The
B
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A
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M
anual
A
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Path: /tenma/72-720/

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readme:

Manual with schematic and calibration procedure 
for a Tenma 72-720 Oscilloscope for you. It was 
also sold as the Elenco MO-1251, JDR Instruments 
Model 2000, Hung Chang OS-620, Neotronics OS-620, 
Kiotto OS-620

It shares some strong resemblences to the Goldstar 
OS-7020A but with a reorganized layout.

Files:

72-720.djvu
(870 KB)
72-720.pdf
(980 KB)