Update - kinda - If any one dosent know im modding a Yokagawa GE medical amp
into ham service ... I added 800V of capacitance to the HV instead of using
dropping resistors (still dont know the actual HV is yet but ill get to it)
I let it go at 5.9V per tube and was doing some testing .... I was getting 900W
on 14.300 when it started to ark over .... reduced power and still doing it...
shut er down at that moment ...
I thought i had blown a relay ... but
I had actually killed my FAVORITE dummy load ... weighed over 3Lbs of aluminum
with a "N" connector on it. Now the thing measures 150K !!!! ( INSERT SWEAR
WORD HERE ) he he and a hi hi !!!
Guess the amp is working .. still need to find some 500Pf@2-5KV disks for the
loading for other bands ...
KC7NOA
> I like to put a resistor in the primary of a filament transformer, because it
> is easier to find a standard value. However, that is not possible if the
> transformer also contains other secondaries.
>
> But, either in the primary or secondary, resistance is good because it limits
> "cold" current automatically.
>
> Kevin has a good idea about using the "white" wire. Although teflon was
> standard in the aircraft industry for years, it had problems, because it
> flows. Today, teflon insulation has been replace by tefzel, which is also
> white - and does not flow.
>
> Aircraft repair shops always have #20 and #22 tefzel wire for sale.
>
> 73, Colin K7FM
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