01-07-2013, 09:41 PM
Lift-off!
Well, Ignition. I don't think I've cleared the Tower yet, but things are looking up.
Fired it up and checked the voltages again - all fine. However, no spot, although the Beam Locate button worked OK.
So, stuck some AC on the X Input, switched the Timebase to External, twiddled the knobs and got a trace.
So, what's the Timebase doing? Swung the Range Switch round a few times and got a Trace in a few positions - see attached.
So, it's a start. The Timebase waveform on the Tube looks horrible, some of the Controls don't seem to do what I expect and it only runs on some of the positions.
Onwards and upwards.
Alan
Well, Ignition. I don't think I've cleared the Tower yet, but things are looking up.
Fired it up and checked the voltages again - all fine. However, no spot, although the Beam Locate button worked OK.
So, stuck some AC on the X Input, switched the Timebase to External, twiddled the knobs and got a trace.
So, what's the Timebase doing? Swung the Range Switch round a few times and got a Trace in a few positions - see attached.
So, it's a start. The Timebase waveform on the Tube looks horrible, some of the Controls don't seem to do what I expect and it only runs on some of the positions.
Onwards and upwards.
Alan
