02-11-2020, 11:51 AM
(02-11-2020, 10:37 AM)Murphyv310 Wrote: The TA7642 is a newer version of the ZN414.
....
I though only want to use the chip as an IF amp which allegedly works very well indeed.
I'm all for hybrid circuits - using the best device for each section.
However, I believe that the TA7642 is easily overloaded as it has limited AGC action, so might not be the best device to use with a valved front end.
In saying that, I've often thought that using valves for the RF stages (including the I.F. amp.) would be a good idea, followed by solid-state audio amplification.
Just my thoughts.
Andy
