21 May
2008
21 May
'08
4:46 p.m.
Does anyone here have any pointers on getting a decent used oscilloscope?
The intended use is for fiddling with classic computers and assorted
homebrewed projects (like synthesizers and geiger counters)
--
David Griffith
dgriffi at cs.csubak.edu
A: Because it fouls the order in which people normally read text.
Q: Why is top-posting such a bad thing?
A: Top-posting.
Q: What is the most annoying thing in e-mail?
21 May
21 May
5:01 p.m.
Buy something analog made by Tektronix.
Look for a 4XX model such as 455 or 465; approx 50 and 100 Mc BW. Enough
for most vintage issues. Do not get a 475 or 485 as they have hybrid
amps which fail occasionally and are expensive to replace.
Also fine is 22xx such as 2245, 246, 2247. Similar but newer and with
useful features related to waveform measurement.
The above scopes are pleasant to use, reliable, and good at staying in
cal if they have not been beaten or hacked.
It's usual to see these for anywhere from $150-$300 depending on condition.
GL
Steve
David Griffith wrote:
Does anyone here have any pointers on getting a decent
used oscilloscope?
The intended use is for fiddling with classic computers and assorted
homebrewed projects (like synthesizers and geiger counters)
5:21 p.m.
I know a guy in Staten Island who sells an odd
assortment of (mostly Tek) scopes. He calibrates them
himself. He's constantly getting out of the business,
but hasn't yet failed to show up with a trunk load at
the Trenton Computer Festival. When I get some extra
cash methinks I'll drive up there and buy one myself.
His prices are reasonable. If anyone wants his contact
info, I'll provide it.
Anyone have an opinion on the color crt digital
scopes made by HP beginning in the very late 80's? Are
they any more expensive or difficult to fix then an
analog scope? I find it strange someone recommending
analog specifically. I'm interested in hearing the
thoughts on that.
--- Steve Stutman <steve at radiorobots.com> wrote:
Buy something analog made by Tektronix.
Look for a 4XX model such as 455 or 465; approx 50
and 100 Mc BW. Enough
for most vintage issues. Do not get a 475 or 485 as
they have hybrid
amps which fail occasionally and are expensive to
replace.
Also fine is 22xx such as 2245, 246, 2247. Similar
but newer and with
useful features related to waveform measurement.
The above scopes are pleasant to use, reliable, and
good at staying in
cal if they have not been beaten or hacked.
It's usual to see these for anywhere from $150-$300
depending on condition.
GL
Steve
David Griffith wrote:
Does anyone here have any pointers on getting a
decent used oscilloscope?
The intended use is for fiddling with classic
computers and assorted
homebrewed projects (like synthesizers and geiger
counters)
6063
days inactive
6064
days old
2 comments
3 participants
participants (3)
-
chrism3667＠yahoo.com -
dgriffi＠cs.csubak.edu -
steve＠radiorobots.com