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321: Difference between revisions
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Later 321 and 321A use a [[7586]] Nuvistor for that role. Latest 321A (SN6000 up) use a FET [[151-1011-01]]. | Later 321 and 321A use a [[7586]] Nuvistor for that role. Latest 321A (SN6000 up) use a FET [[151-1011-01]]. | ||
In several circuits, the 321 uses [[OC170]] transistors where the 321A uses [[2N2207]] transistors. | In several circuits, the 321 uses [[OC170]] transistors where the 321A uses [[2N2207]] transistors. | ||
==Power Supply== | |||
The 321 uses a DC-DC converter to generate the DC voltages needed for the scope. | |||
Before serial number 720, a separate high voltage power supply generated the +3350 V CRT anode voltage. | |||
Starting at serial number 720, all DC voltages (including the CRT anode voltage, via a voltage multiplier) are generated by a single power supply | |||
based on the [[120-210]] transformer. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||