Re: Another scope 7854

Joe Laffey

On Fri, 5 May 2017, David @DWH [TekScopes] wrote:

On Thu, 4 May 2017 17:38:45 -0500 (CDT), you wrote:

I got a suitable replacement from my local store and will swap it out
later today.
Recalibrating the transient response is not trivial on these; it
requires a reference level pulse generator like a PG506. What you
could do instead is apply the same fast pulse to both channels and
adjust C375 until the pulse response of channel 2 is as close as
possible to channel 1. If you do not have anything better, then the
sync or trigger output from a function generator is probably fast

For square waves I have a PG502, an FG504, an IEC F34, a Wavetek 145, and an old DataPulse 101. I think the PG502 is the fastest of those. I could also build a Jim Williams fast edge circuit.

When you say refernece level you mean that the peaks have to be very accurate calibrated? (The amplitude of the square wave) ??

Thanks again.

Joe Laffey

Join to automatically receive all group messages.