[neonixie-l] Re: Need advice on a new scope...
I have an HP54502A which has been my daily driver for years. Unfortunately that ceased to function one day, and I had to go and find another scope to fix it. (gnarly power supply issue) Now, I happened to have an HP16500A around the place, and by luck I found a 1GHz scope card for it, so after much shenanigans involving buying a small Dell computer with a floppy drive, installing FreeDOS on it so I could use LIFUTIL to write diskettes from images, I got the 16500A working. Then I got the HP54502A working - the one-shot capability of the 16500A to spot what was going on at power on was instrumental in the fixing (after replacing all of the big caps of course - YMMV but I'd also vote for just doing a cap job on the power supply of your fine machine) The HP16500A is the superior beast technically as a scope, but it makes too much noise to be the replacement daily driver, so I reverted back to the HP54502A - which is also more like a 'real' scope in terms of the user interface. However, I still have an old analog 20MHz Hameg HM203 which was given to me, just because it's silent in operation, for some things a pure analog scope works better - and it takes up very little bench room. On Friday, 21 April 2023 at 06:39:49 UTC+1 J Forbes wrote: > that 2236 is so much nicer than my 2215, you really ought to fix it > :) > > > On Thursday, April 20, 2023 at 9:04:16 PM UTC-7 gregebert wrote: > >> I'm really happy with my HP16500A, and they are reasonably priced if you >> shop around. About 10 years ago I got mine with two dual-channel cards >> (100Mhz/200msps) and two logic analyzer cards (OK, dont laugh50Mhz / 80 >> channels) and probes, pods, and manuals, for about 250 USD including >> shipping. It seems like a weird scope because it only has 1 knob, and uses >> a touchscreen. I remember when it first came out around 1989, and it was >> THE scope to have. >> >> Digital scopes are a must-have so you can trigger/capture single events. >> There are better versions (16500B, 16500C) that have hard drives and allow >> you to login via Xwindows. >> >> None of my designs run faster than 50Mhz, so the scope/logic analyzer >> works fine for me. I bought a second unit as a spare, but found enough good >> cards at low cost to have a second 4-channel scope + logic analyzer. >> >> For nixie work, and especially CRT/NIMO work, get a set of 100x probes. >> >> That said, your Tek scope probably just has a dried-out electrolytic cap >> in the power supply. >> >> On Thursday, April 20, 2023 at 8:44:50 PM UTC-7 martin martin wrote: >> >>> My Tek 2236 is nearly 30 moons old and no longer stays on for more than >>> a few minutes. I am sure it's fixable, but on the other hand maybe time >>> for a new digital! >>> >>> What do you guys suggest for general use and of course clock fixing? >>> >>> >>> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/edeba8bf-b953-43a9-b15d-eb3b994f4a9bn%40googlegroups.com.
[neonixie-l] Re: Need advice on a new scope...
that 2236 is so much nicer than my 2215, you really ought to fix it :) On Thursday, April 20, 2023 at 9:04:16 PM UTC-7 gregebert wrote: > I'm really happy with my HP16500A, and they are reasonably priced if you > shop around. About 10 years ago I got mine with two dual-channel cards > (100Mhz/200msps) and two logic analyzer cards (OK, dont laugh50Mhz / 80 > channels) and probes, pods, and manuals, for about 250 USD including > shipping. It seems like a weird scope because it only has 1 knob, and uses > a touchscreen. I remember when it first came out around 1989, and it was > THE scope to have. > > Digital scopes are a must-have so you can trigger/capture single events. > There are better versions (16500B, 16500C) that have hard drives and allow > you to login via Xwindows. > > None of my designs run faster than 50Mhz, so the scope/logic analyzer > works fine for me. I bought a second unit as a spare, but found enough good > cards at low cost to have a second 4-channel scope + logic analyzer. > > For nixie work, and especially CRT/NIMO work, get a set of 100x probes. > > That said, your Tek scope probably just has a dried-out electrolytic cap > in the power supply. > > On Thursday, April 20, 2023 at 8:44:50 PM UTC-7 martin martin wrote: > >> My Tek 2236 is nearly 30 moons old and no longer stays on for more than a >> few minutes. I am sure it's fixable, but on the other hand maybe time for >> a new digital! >> >> What do you guys suggest for general use and of course clock fixing? >> >> >> -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/72ab7d5c-a5d8-4d99-ba47-87758f952b13n%40googlegroups.com.
[neonixie-l] Re: Need advice on a new scope...
I'm really happy with my HP16500A, and they are reasonably priced if you shop around. About 10 years ago I got mine with two dual-channel cards (100Mhz/200msps) and two logic analyzer cards (OK, dont laugh50Mhz / 80 channels) and probes, pods, and manuals, for about 250 USD including shipping. It seems like a weird scope because it only has 1 knob, and uses a touchscreen. I remember when it first came out around 1989, and it was THE scope to have. Digital scopes are a must-have so you can trigger/capture single events. There are better versions (16500B, 16500C) that have hard drives and allow you to login via Xwindows. None of my designs run faster than 50Mhz, so the scope/logic analyzer works fine for me. I bought a second unit as a spare, but found enough good cards at low cost to have a second 4-channel scope + logic analyzer. For nixie work, and especially CRT/NIMO work, get a set of 100x probes. That said, your Tek scope probably just has a dried-out electrolytic cap in the power supply. On Thursday, April 20, 2023 at 8:44:50 PM UTC-7 martin martin wrote: > My Tek 2236 is nearly 30 moons old and no longer stays on for more than a > few minutes. I am sure it's fixable, but on the other hand maybe time for > a new digital! > > What do you guys suggest for general use and of course clock fixing? > > > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to neonixie-l+unsubscr...@googlegroups.com. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/4d7ea3ea-894c-4e68-891e-ea77441276e1n%40googlegroups.com.
