On Wed, Feb 14, 2024 at 12:04 AM, <kontraptioneering@...> wrote:
it looks to me that there's a very happy frequency that this amp wants to operate, which implies that somewhere, this frequency of 10 Mhz is being set by a certain combination of components - capacitors, inductors, etc?
Could it be C2 or C3? And I don't know about changing the number of turns on T1, but maybe? I could experiment with a few things I guess.? Any suggestions for starting points from the crowd? I've attached the schematic for convenience.?
This isn't the first time this has come up here...I'm curious as well.?
I don't know much, but it is interesting to me/ I wonder why 1 uf caps are used on the input here. On the 10W linear PA kit, it goes straight into BS170s for the first stage, and then some 0.1 uf caps before the IRF510s....... And the input transformer is different.? ?
The WA2EBY also uses 0.1 uf on the input.?
-Nate N8BTR
