Tek 7904 scope

[Don North]

Tom Peters wrote:
>
> Never having owned a decent scope before, please help me out a little. 
> Well, I do have a 60mhz Hickok that's really beat up.
>
> If I want to get up to 500 MHz (70 cm is 400+ right?) I could try to 
> locate a 7A29, or maybe there's another cheeper one? That's question 
> number 1.
>
> 2. Sounds like one definitely has to have a better timebase plugin, 
> you seem to be implying that, to make use of the bandwidth of the 
> 7A29, right? Which one, you list three. Or any of the above?
>

For my 7104 1GHz scope, I have 2x7A29 for vertical inputs, and a 
7B10/7B15 timebase pair for horizontal (standard + delayed sweep).

For a 7904A, 2x7A19 is all that is really needed for vertical (it is a 
single 50ohm input 500MHz amp) plus a 7B92A gives you normal + delayed 
sweep. This leaves an extra horizontal slot open.

7A19s are usually readily available on eBay, and 7B92As are pretty 
common as well.