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Update: 1 quick note....I found an 80MHz oscillator (TTL) and hooked it up. Sig out looked pretty much like sig in, so I'm back on track to finish up this design. Now I can mount the relays and on to conversion and other control circuitry. Happy camper :))))
Problem solved. Thanks much for the...
D'oh!! :( I'm so used to going directly to pdf out of MS Office I forgot that I could use it as an intermediate step :(
OK. Attached 2 gif files of the schematic (hopefully they're readable) due to the nature of KiCad. And it's a work in progress.
Some notes: page 1 is the input...
My sense is that there does seem to be some kind of problem at the higher freq (layout, marginal part, etc.)....just not sure what that is yet. Here's why I think so:
Both 2KHz and 1MHz signals look fine until the 1MHz doesn't on the "other side" of the 93.1K. I now better understand this is...
Update: I put the circuit back together and checked at the output. The amp itself seems to be working correctly because the signal (either 2KHz or 1 MHz) I see at the lower impedance output is pretty much what I see at the "trouble spot" :( I did discover I had been connecting to a point I...
Hi all,
I can't remember if I've actually posted here before, but know I have visited a few times looking for help.
Here's an interesting problem I've run into. Hope someone has some good analog insight (my primary expertise is in digital).
I have built a front end amp that's supposed...
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