In looking at the type 107 it looks like there is not much that will fail in it other than the normal power supply caps. The 106 has a lot more going on in it. If I can capture some waveforms from a working 106 let me know. I have one in the lab. I also have 2 leo pulsers in the lab so I can take some pictures on a 7k frame of what it looks like. But I think my slowest plugins are 75Mhz. but that would get close to the 1a1.
Also when doing the HF alignment the only thing of interest in the wave form is the rise and transition to the flat top of the wave form. Nothing in wave shape matters after that. The way the alignments go is to start out slow and long flattening out the waveform working forward to the rising edge sharpening up the corner as the steps progress. The deeper in to the process the more zoomed in on the corner. The more zoomed in on the corner the less the rest of the wave form matters.
That being said I have had some plugins that were very badly miss aligned (from the Ebay) that took 4-5 passes of the compensation procedure to get them to rights.
If I can help out in any way let me know
Zen
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-----Original Message-----
From:
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[email protected]> On Behalf Of PMF
Sent: Thursday, April 28, 2022 11:09 PM
To:
[email protected]Subject: Re: [TekScopes] Leo Bodner Fast Rise Pulse Generator for 453 & 547?
Zen,
In that case, I might return to the 067-0521-00 to see what the waveform looks like after I blundered into adjusting the whole system with the Bodner. You make a very good point anent standardizing, so to speak, the mainframe so that all plugs-in behave, and I will return to this MO, even though I have but one 500 series scope.
Fortunately, I had two or three bumps well beyond 10 nS in the waveform, at least as I left it, so I probably did not attenuate the bandwidth too much. I am also glad you replied, for this is the only 'scope whose vertical amplifier I 'adjusted.'
Unfortunately, this probably indicates that my 106 & 107 square wave generators are faulty, but at least it is good to know where to start. Somehow.
PMF
