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drives the vertical deflection plates of the scope uses a pair of 8233 frame grid power | drives the vertical deflection plates of the scope uses a pair of 8233 frame grid power | ||
pentode tubes. | pentode tubes. | ||
* [http://bama.edebris.com/download/tek/3a1/3a1.djvu Tektronix 3A1 Manual (PDF)] | |||
<gallery> | <gallery> |