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Heathkit Assembly Manual for Professional Oscilloscope Model O-10 Pictorials from 1956.
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Heathkit O-5 S-122 part. Designed for use on 115 volt AC power, great for Nixie tube projects, or if you are building a custom CRT base display project.
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Vintage Heathkit 10-102 Oscilloscope. Powers on. No further testing done. Excellent condition.
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