Why Nostr? What is Njump?
2025-01-09 21:45:45
in reply to

Rasmus SA5RJS on Nostr: 13) Checked bias and soldered FETs and feedback resistors First I familiarized myself ...

13) Checked bias and soldered FETs and feedback resistors

First I familiarized myself with the bias circuit. The pot adjusts the gate bias between 0 and 4.8 volts. Clockwise = increase bias. The pot also had stops at min and max, unlike what I've seen on others' videos.

Then I added the insulating pads and screwed the FETs in place. With everything at the right spot I soldered the FETs and the feedback resistors.

The amp should be ready for testing now, so this concludes this build thread! I'll start a new test thread next evening when I work on this, and probably more ones later for an enclosure and a LPF.

Thank you all for your encouragement and interest in this project! I've learned so much from the discussions that sparked off and carried on in their own directions!

#AmateurRadio #HamRadio #electronics

Author Public Key
npub133kx3vtsccvrn4uxjn85wacm45uqglre8qz7z7tr86p6lhy0whsqmhfazx