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3T77: Difference between revisions
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In normal mode, an internal ramp generator produces the control voltage, repeatedly redrawing the trace on the CRT. | In normal mode, an internal ramp generator produces the control voltage, repeatedly redrawing the trace on the CRT. | ||
In single sweep mode, the internal ramp generator is started by a button on the front panel, makes one horizontal trace, and then waits for the button to be pressed again. | In single sweep mode, the internal ramp generator is started by a button on the front panel, makes one horizontal trace, and then waits for the button to be pressed again. | ||
{{MissingSpecs}} | |||
==Internals== | ==Internals== | ||
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===Difference of 3T77 and 3T77A=== | ===Difference of 3T77 and 3T77A=== | ||
TIME POSITION knob instead DELAY knob, with more range of delay by slow sweep rate | TIME POSITION knob instead of a DELAY knob, with more range of delay by slow sweep rate. | ||
The RECOVERY TIME knob can be pulled for HF-sync. | |||
==Pictures== | ==Pictures== | ||
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</gallery> | </gallery> | ||
== | ==Components== | ||
{{Parts|3T77}} | {{Parts|3T77}} | ||
{{Parts|3T77A}} | {{Parts|3T77A}} | ||