I'm not disputing that Volt-Nuts is a worthwhile Group, only that it is focused on hobbyist/experimenters of general electronics. The HP-Agilent-Keysight-Equipment Group, on the other hand, is focused on acquisition, repair and use of the kind of test equipment that was originally inquired about by Dave McGuire. I believe a broader response to the problem reported will be had from the HP-etc Group. I am a member of both Groups but I find little activity on the Volt-Nuts Group, certainly when compared to the HP-etc Group. I assume Dave inquired first of the Volt-Nuts Group and that he is unaware and not a member of the HP-etc Group; I felt he should be made aware of that very active HP-focused Group. Larry On 10/18/2021 4:30 PM, Dr. David Kirkby wrote: > On Mon, 18 Oct 2021 at 23:59, Larry McDavid <lmcdavid@lmceng.com> wrote: > >> Dave, Volt-Nuts is really the wrong reflector to be effective in >> pursuing this question. Far better that you join and ask on the >> HP-Agilent-Keysight groups.io Group. The real HP experts reside there >> and are better placed to address your question. Look here: >> >> https://groups.io/g/HP-Agilent-Keysight-equipment >> >> This is a *very* active Group, with many emails about HP equipment >> operation and repair every day. >> >> Larry >> > > Dave McGuire is a joint *owner *(not just a moderator) of that group! I > set the group up, and invited Dave to be another owner so that; > > a) If I die, the group can continue. > b) With me in the UK, and Dave in the USA, it makes it possible for posts > to be approved. > _______________________________________________ > volt-nuts mailing list -- volt-nuts@lists.febo.com -- To unsubscribe send an email to volt-nuts-leave@lists.febo.com > To unsubscribe, go to and follow the instructions there. > -- Best wishes, Larry McDavid W6FUB Anaheim, California (SE of Los Angeles, near Disneyland)

            -Dave

On 10/19/21 6:48 PM, Larry McDavid wrote: > I'm not disputing that Volt-Nuts is a worthwhile Group, only that it is > focused on hobbyist/experimenters of general electronics. The > HP-Agilent-Keysight-Equipment Group, on the other hand, is focused on > acquisition, repair and use of the kind of test equipment that was > originally inquired about by Dave McGuire. > > I believe a broader response to the problem reported will be had from > the HP-etc Group. > > I am a member of both Groups but I find little activity on the Volt-Nuts > Group, certainly when compared to the HP-etc Group. > > I assume Dave inquired first of the Volt-Nuts Group and that he is > unaware and not a member of the HP-etc Group; I felt he should be made > aware of that very active HP-focused Group. Well, the funny thing about this is, when people ask 3458A-related questions on the hp-agilent-keysight-equipment mailing list, we refer them to volt-nuts! ;) Similarly, when people pop up asking questions about 5061s, 5065s, etc we refer them to time-nuts. All of these are extremely specialized instruments, far more so than the general HP stuff that we all know, use, and love. As such, they usually benefit from more vertical subject matter expertise that can be found here. I myself know this from having read the archives here (and for time-nuts) for many years. -Dave -- Dave McGuire McGuire Scientific Services, LLC New Kensington, PA