Re: [midatlanticretro] oscilloscope wanted
Most any ham radio club will have one or more members who can calibrate a
scope. The club that co-sponsors TCF might be a good place to start.
--- Chris M <chrism3667@...> wrote:
> Bill and all, I posted a message on electronics_101
> about an older HP 100 mhz scope I've been offered -
> wanted to get some feedback. Someone submitted that
> Tektronix 7000 series scopes are plentiful on Ebay
> say, and "reasonable", so you can always find parts or
> whatever. Keep in mind though that scopes need to be
> calibrated, and a roomful of test equipment is needed
> for that task. There's always people that can perform
> this service, believe me some people actually have
> loads of this stuph and are able to work from their
> spare bedroom or whatever. Not sure what something
> like that costs, haven't even touched a scope in
> years, but I was told that you can get them already
> calibrated on Ebay or wherever. It helps to have a
> certificate from a reputable lab though.
> There used to be hardware/software to turn puters
> into oscilloscopes/logic analyzers. There was even a
> program called SoftLa some years ago that didn't even
> employ any hardware I don't think that turned a 486 or
> whatever into a multi channel logic analyzer. And it
> was cheap.
> The reality is, there are always back doors. I
> remember reading on some site that to align a floppy
> drive, you need to move the head forward (or
> backward?). I was staring at a pc drive the other day
> and it seemed logical. The trick I guess is to do it
> reliably/repeatably, perhaps by utilizing a piece of
> precision screw and some kind of nut, like the way the
> lead screw on a lathe operates. I'm just rambling now,
> but there might be some sanity to such caterwauls.
> The truth is though, if a cheap scope found it's way
> into the arsenal of every vintage megalomaniac, it
> wouldnn't hurt at all. I'm sure an old 20mhz Tek could
> be found for next to nothing.
> I'll report any new findings as they're found :)
> --- billdeg@... wrote:
> > Thanks for all of your replies. I will let you know
> > how it turns out.
> > Bill
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