[Amps] Alpha 77 Filter Cap replacement?

[R.Measures]

**  This a common problem, especially among contestors, where the 
high-ESR of the compact flash-type C that is used causes heat-buildup 
which stresses the solder seals and eventually breaks them.  If I were 
looking to replace a leaky oil-filled filter C in a 77, I would consider 
replacing it with a bank of the new, compact Matsushita/Panasonic 105ºC, 
high-ripple-I 450wvdc electrolytics.  Sure, this modification will 
totally destroy the cosmetic value of the amplifier to the 
appearance-minded, but the 77's reliability would be improved.  On the 
other hand, this would be undesirable to those who like surprises during 
contesting.  
-  Another worthwhile 77 mod is replacing the 80m and 160m tank-padder 
doorknob caps for with units that are rated for tuned-circuit duty 
instead of bypass duty.  This will stop the tank heating and drifting 
problem on 80 and 160.  Yet another mod to consider is decreasing the Q 
of the VHF-suppressor.  Although this will result in a 2% or so power 
loss at 29MHz, the VHF-gain of the 8877 will be reduced, which just might 
make it less squirrely at the  VHF anode-resonance.  (measure with a 
dipmeter at the DC-blocking C)
-- Note -- I have autopsied several 8877s from Alpha 77s which died from 
gold-sputtering off of the grid, a phenomenon that Eimac's 8877 
design-team reportedly concluded was caused by an "oscillation 
condition".  

>Noticed my origial Filter Cap is starting to leak oil.  Is there any
>other place to buy a replacement cap other than Peter Dahl?
>
>Thanks..
>Rich N7TR
>
>N7TR Web Site - Updated 28 Sept
>www.n7tr.com <http://www.n7tr.com>
>
>N7TR DX-Cluster
> <telnet://dxc.n7tr.com>
>
>
>_______________________________________________
>Amps mailing list
>Amps at contesting.com
>http://lists.contesting.com/mailman/listinfo/amps
>