[sdiy] HP 54602B selling on eBay.. DC vertical offsets on some channels or what ??

Ben Stuyts ben at stuyts.nl
Mon Apr 5 18:51:21 CEST 2021

Asking price is USD 250, that is a lot of money ‘for parts or not working’. Doesn’t even include a set of probes, which will set you back another USD 100 or so.

I can fully understand the desire to buy a scope from the big names of yore, but also have a look at a low end Rigol DS1054Z or Siglent SDS1104X-U or -E. They have 3 years of warranty (in the EU, don’t know about CA). The Siglent even goes to 500 uV / div I think.

There was a whole thread about this last year: 
http://synth-diy.org/pipermail/synth-diy/2020-December/174622.html <http://synth-diy.org/pipermail/synth-diy/2020-December/174622.html> (Best scopes for the money, 2020?)


> On 5 Apr 2021, at 17:10, Jean-Pierre Desrochers <jpdesroc at oricom.ca> wrote:
> I'm looking for a used 4 channels scopes on eBay.
> I have preferences for HP and Tektronix.
> Anybody owns (or owned) this type of scope ?
> https://www.ebay.ca/itm/124166473008?&ul_noapp=true&autorefresh=true <https://www.ebay.ca/itm/124166473008?&ul_noapp=true&autorefresh=true>
> Looking at the 10th picture showed: 
> All the 4 channels are on the screen but it looks to me that 
> some of them shows DC offsets (no probes connected..)
> I can see the channel#1 ref dot line completely alone 
> but many signal lines are over it.. 
> Channel#1 at 2.00mv/div
> Channel#2 at 5.00mv/div
> Hmmm...
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