I don't know if I can help you or not -- but I believe he changed the type
to 3C90 as the 85 is very hard to find now.
Eric
On Tue, 6 Jan 2004, dj9dw wrote:
Hello group,
as I can't get in contact with David, G0MRF, I want to spread out my problem
here.
The TX works fine except the outputtransformer T2. There is heavy ringing at
abt 1 MHz. Now I figured, the inductance seems to be abt 300uH from drain to
drain. That shure is far too much.
Could it be that David has changed the toroid - type to one with higher u so
that 10 turns primary has to be reduced?
Your help is very welcom, I am stuck.
Regards, dj9dw, Peter.
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