Re: HP 54200D oscope practically worthless?
On Thu, May 12, 2022 at 5:55 PM Eric Smith via cctalk wrote: > > These appear to be derived from the 1630/1631 logic analyzers, some models > of which have 'scope capability, which works as you've described. They must > have decided to offer models with only the scope and without the logic > analzyer (except for a digital triggering option), which seems like a bad > idea. Probably why I'd never heard of these before. > Without taking a close look at the specifications for any differences, the scope capability of the 54200 might be basically the same as the 1631. The 54201 scope adds a repetitive sampling capability that doesn't appear to be present on the 54200 and 1631, which increases the bandwidth up to 300MHz instead of 50MHz in the real-time sampling mode.
Re: HP 54200D oscope practically worthless?
On Thu, May 12, 2022 at 12:25 PM Alexander Huemer via cctalk < cctalk@classiccmp.org> wrote: > On Thu, May 12, 2022 at 02:01:50PM -0400, William Sudbrink via cctalk > wrote: > > I picked up one of these in a batch of electronics. Is it worth > > repairing/investigating? > > The scope does what it is supposed to, you get a time-domain > visualization of voltage. > Though, they are awkward to use due to the lack of rotary encoders. > Scaling horizontally or vertically requires you to go into a menu, > navigate to the right option, do the actual scaling and go back. > It's better than no scope at all, but not exactly the model you'd hunt. > These appear to be derived from the 1630/1631 logic analyzers, some models of which have 'scope capability, which works as you've described. They must have decided to offer models with only the scope and without the logic analzyer (except for a digital triggering option), which seems like a bad idea. Probably why I'd never heard of these before. At the time they were current (early 1980s), the 1630/1631 family were fairly reasonable logic analyzers, but the 1650/16500, 1660, 1670/16700, etc. are far better. I wouldn't recommend that anyone _buy_ a 1630/1631 family logic analyzer at this late date, but if someone is giving one away...
Re: HP 54200D oscope practically worthless?
On 5/12/22 13:01, William Sudbrink via cctalk wrote: I picked up one of these in a batch of electronics. Is it worth repairing/investigating? I don't see much on the web and they seem to go for practically nothing on epay. Is there something inherently wrong with them? I have a 54200A that I got out of a dumpster. The user interface is QUITE awful compared to modern digital scopes. Setting the trigger level requires going through several menus, for instance. But, it is a decent scope except for the human-machine interface. Jon
RE: HP 54200D oscope practically worthless?
Alexander Huemer wrote: > The scope does what it is supposed to, you get a > time-domain visualization of voltage. Though, they > are awkward to use due to the lack of rotary encoders. > Scaling horizontally or vertically requires you to go into > a menu, navigate to the right option, do the actual > scaling and go back. > It's better than no scope at all Yea, I have several other scopes, so I guess I won't spend any time on it... > but not exactly the model you'd hunt. Anybody in the Washington, DC area want to pick it up for a beer? -Alex -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
Re: HP 54200D oscope practically worthless?
> The scope does what it is supposed to, you get a time-domain > visualization of voltage. Though, they are awkward to use due to the > lack of rotary encoders. Scaling horizontally or vertically requires > you to go into a menu, navigate to the right option, do the actual > scaling and go back. It's better than no scope at all, but not > exactly the model you'd hunt. It has HP-IB, and the manuals mention the HP desktop computers of that era, so you could probably build a more facile interface on a modern machine. De
Re: HP 54200D oscope practically worthless?
On Thu, May 12, 2022 at 02:01:50PM -0400, William Sudbrink via cctalk wrote: > I picked up one of these in a batch of electronics. Is it worth > repairing/investigating? > I don't see much on the web and they seem to go for practically nothing on > epay. > Is there something inherently wrong with them? The scope does what it is supposed to, you get a time-domain visualization of voltage. Though, they are awkward to use due to the lack of rotary encoders. Scaling horizontally or vertically requires you to go into a menu, navigate to the right option, do the actual scaling and go back. It's better than no scope at all, but not exactly the model you'd hunt. -Alex
HP 54200D oscope practically worthless?
I picked up one of these in a batch of electronics. Is it worth repairing/investigating? I don't see much on the web and they seem to go for practically nothing on epay. Is there something inherently wrong with them? Thanks, Bill S. -- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus
