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Warren
I have used Litz wire, for the application that you
describe, plus other different types of wire around 3mm thick and it makes no
noticeable difference since there is so little wire involved.
I have not tried the current fed amplifier. I have used
the voltage class D and it works fb also Class E which also works very well but
it is critical to set up but there after very reliable and probably more stable
than a D type
The Decca amps with FETS in bridge configuration and a
TANK coil resonated at the frequency of interest is very stable and
reliable
You have a great choice.
73 es gl de mal/g3kev
----- Original Message -----
Sent: Saturday, December 15, 2012 4:17
PM
Subject: LF: M0BMU mods to the G0MRF
PA
Hello the list...
Since my G0MRF is experiencing intermittent
short circuit in the final amp, I plan on re-doing the output circuit per the
M0BMU modification:
The M0BMU mod changes the circuit to a current
fed design which improves the efficiency. The mod calls for a transformer
primary winding using 12 strands of 0.3mm e.c.w. (enamel covered
wire).
I assume that the 12 strands are used to improve the Q similar to the way
Litz wire works?
Has anyone done this mod? Has anyone tried
alternatives to the 12 strands of enamel wire?
73 & tnx Warren K2ORS
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73 Warren K2ORS
WD2XGJ
WD2XSH/23
WE2XEB/2
WE2XGR/1
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