[sdiy] HP 54602B selling on eBay.. DC vertical offsets on some channels or what ??
nitro2k01 at gmail.com
Mon Apr 5 18:21:18 CEST 2021
I've used the 54600A a lot. (100 MHz, 2 channel version of the same
series.) Over all I can't think of anything bad to say about this
Regarding the DC offset, it does look a bit high. We can't know which
channel is which, but going by channel 1, at 2 mV/div, the DC offset
is in the range 3-5 mV depending on which trace is ch1. According to
the performance test card in the manual, a voltage of 14 mV should
read within 13.70 mV to 14.30 mV, so 3-5 mV is definitely greater than
0.3 V compound error. This could just be because it has not been
calibrated for 25 years. I suspect it will either work just fine if
you don't need accurate mV readings, or it will be an easy fix. I
would go for it.
On Mon, 5 Apr 2021 at 17:15, 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 ?
> 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
> Synth-diy mailing list
> Synth-diy at synth-diy.org
> Selling or trading? Use marketplace at synth-diy.org
More information about the Synth-diy