Hello,
Of the two choices, the 7904 would be better for most work. If rack mount is required, then it going to be a R7xxx, with three slots.
The 7xxx mainframe choice depends more on what one is planning to work on with the scope. The later 7904A has a number of improvements that are worth considering (improved power supply, nicer packaging, various circuit updates and etc.). I have used 7904's for years and still to this day,they are one of my favorites. They the basic "work horse" 7K mainframe.
Two other very interesting 7K main frames would be the 7844 dual beam which is basically two 7904s in one package or the 7104, micro channel plate CRT with 1Ghz bandwidth using the proper plug ins. I currently use a 7104 at work for specialty analog/digital design work and what that MCP offers is very high real time writing speed.
Bernice
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I'm looking for a new toy and am thinking about a 7904 or R7903.
There is a lot of material in the archives but I would still like
to get some ideas from the group as if this is a good choice
or if there are better choices in the 7XXX family.
Thanks for your input,
Bert
