flaheu
Well-known member
OK, I've built a 2 stages JFP preamp DI.
After days of fight to find the correct ground tha kills all the annoying noise I tried tu push the preamp to max but when I pass the 3/4 on the 10K log pot between the 2 stages it starts to "bo-bo-bo-bo-bo".
Im'm using OEP mic input TX wired 1/6.45.
This nasty preamp seems full of gain, maybe I've too much gain ?
EAch Jfp block is matched to have 12VDC at its output.
Guys, do I have to reduce gain ?
Exept that this preamp is really a nice one, plenty of "body" as a bass Di it's wonderfull.
Thanks for your comments.
After days of fight to find the correct ground tha kills all the annoying noise I tried tu push the preamp to max but when I pass the 3/4 on the 10K log pot between the 2 stages it starts to "bo-bo-bo-bo-bo".
Im'm using OEP mic input TX wired 1/6.45.
This nasty preamp seems full of gain, maybe I've too much gain ?
EAch Jfp block is matched to have 12VDC at its output.
Guys, do I have to reduce gain ?
Exept that this preamp is really a nice one, plenty of "body" as a bass Di it's wonderfull.
Thanks for your comments.