Products > Test Equipment
True analog scopes
switchabl:
--- Quote from: BillyO on December 20, 2022, 01:40:48 pm ---
--- Quote from: switchabl on December 20, 2022, 01:24:17 pm ---Well, at 1 GHz I guess the closest analog equivalent may have been the Tek 7104 (with 7A29, 7B15 and 7B10)? According to TekWiki that had a list price of $44,510 when it was discontinued in 1990 ($97,900 in 2022 USD).
--- End quote ---
How many hobbyists do you imagine had one of these in their basement in 1990?
--- End quote ---
Very few, naturally. Just thought that would add some interesting context. (New) GHz scopes are all expensive and used to be a lot more so (even though to my knowledge none of them ever made coffee).
If you don't need that kind of bandwidth, you can get MegaZoom IV scopes, with all their advantages (and disadvantages!), for a lot less.
BillyO:
--- Quote from: switchabl on December 20, 2022, 02:43:00 pm ---If you don't need that kind of bandwidth, you can get MegaZoom IV scopes, with all their advantages (and disadvantages!), for a lot less.
--- End quote ---
Yeah, even the low cost 1GHz scopes are still ~$7K+. I'm happy with my $1K scope that give me better than 600MHz. That extra 400MHz is not worth the extra $6K to me. Add to that that the $7K 1GHz scopes only come with 500MHz probes. You need to spend another $4K to get the full speed out of them. As it is I'm trying to source a couple of 750MHz probes so I can get the best out of the scope I have. My current probes only go to 500MHz. :palm:
tggzzz:
--- Quote from: switchabl on December 20, 2022, 01:24:17 pm ---Well, at 1 GHz I guess the closest analog equivalent may have been the Tek 7104 (with 7A29, 7B15 and 7B10)? According to TekWiki that had a list price of $44,510 when it was discontinued in 1990 ($97,900 in 2022 USD).
--- End quote ---
When Tek 465s were current every-lab-has-one scopes (mid-late 70s), they cost around an engineer's annual salary. By that token the Keysight MSOX3104T are relatively cheap.
joeqsmith:
--- Quote from: BillyO on December 20, 2022, 03:14:51 pm ---
--- Quote from: switchabl on December 20, 2022, 02:43:00 pm ---If you don't need that kind of bandwidth, you can get MegaZoom IV scopes, with all their advantages (and disadvantages!), for a lot less.
--- End quote ---
Yeah, even the low cost 1GHz scopes are still ~$7K+. I'm happy with my $1K scope that give me better than 600MHz. That extra 400MHz is not worth the extra $6K to me. Add to that that the $7K 1GHz scopes only come with 500MHz probes. You need to spend another $4K to get the full speed out of them. As it is I'm trying to source a couple of 750MHz probes so I can get the best out of the scope I have. My current probes only go to 500MHz. :palm:
--- End quote ---
Resistive probes are fairly inexpensive and at 1GHz, I would imagine many people will make their own.
https://www.eevblog.com/forum/testgear/fifty-ohm-probes/
For me the choice isn't true analog vs digital, it's used digital vs used digital. The only way I can afford to play is to lag 10+ years behind.
tautech:
--- Quote from: BillyO on December 20, 2022, 03:14:51 pm ---Yeah, even the low cost 1GHz scopes are still ~$7K+.
--- End quote ---
Correct, officially. ;)
In reality you can get the same HW in a 500 MHz version for $ 5890 and hack it.
I had one for several years until a customer wanted it earlier this year.
But with still a few days of 2022 left you can get the 500 MHz model on promotion with a free BW upgrade to 1 GHz.
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version