[JMS] Millen 90801

[Don Buska]

Bill,

The cap was a special design by Millen just for the 90801.  Mine was 
cracked when I got my 90801.  The reason was that Millen bolted it to 
the chassis and also had a nut on the shaft that partly holds the front 
legend aluminum plate.  If you tighten the front nut to tight it will 
pull the cap forward working against the internal mounting.  Thus the 
caps ceramic structure would crack.  Considering all the advanced 
mechanical designs in the Millen equipment this cap mounting was a real 
snafu.

Back to the cap.  It's a 227pF unit.  If you duplicate all the coils and 
use say a 250pF cap your frequency tuning printing on the front may not 
match up well.  Still it might not be to bad.  Perhaps you can do some 
plate removal to get closer to the 227pF.  Millen Electronics did have a 
couple of the caps several years back.  I bought one for my transmitter 
due to the original being damaged.  So drop a line to Ralph and see if 
he has others. 

73

Don N9OO

Bill wrote:
> Hi Ken,
>
>    Thanks for the offer. I probably will need a piece of coil stock 
> for the lower frequency output link but I have to get a more accurate 
> idea of the size, tpi, and length.
>    I am in the process of working with some pictures of the tank 
> circuit trying to scale the coils. The loading cap has also been 
> changed and that will also take some study.
>    I don't presently know where a speech amp might be found, I do know 
> of another 90800  that is available.
>
>                            Thanks again, Bill
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