View Single Post
Old 19th Apr 2021, 2:31 pm   #5
Terry_VK5TM
Nonode
 
Terry_VK5TM's Avatar
 
Join Date: Oct 2010
Location: Tintinara, South Australia, Australia
Posts: 2,324
Default Re: Buffer Amplifier for Digital Frequency Counter

Two things I can see, one Lawrence has covered and the second is the 10uF coupling cap to the last stage will be causing problems.

It is common to see a 10 or 100nF cap in parallel with that 10uF to increase the bandwidth.
__________________
Terry VK5TM
https://www.vk5tm.com/
Terry_VK5TM is offline