Hello all,
Thank you Guenther for your solution to the AM coil matching.
I also noticed a shifting in the tuning when building this circuit.
By the way, to my surprise, the same circuit build with the NPN transistors performed better ! Something to do with the gain of the first transistor.
As an experiment a few weeks ago, I used a higher gain transistor MPS-A18 and distant stations popped in loud and clear.
I would love to build a transistor block with this high gain transistor.
Just need to order an empty block one of these days.
Greetings
- This reply was modified 5 years, 2 months ago by Michael. Reason: Changed font and size styling for easier reading