[Collins] 30L-1 TUNED INPUT PROBLEM

[Jim Bull]

Greetings 

Have questions--Looking for Advice.

In rebuilding a late Winged Emblem 30L-1, I've encountered a problem on
the Tuned Input for 15M and 10M.

75/40/20 are all 100%.  600(plus) Watts output into my dummy load with a
Bird 43 (reading reflected) between the exciter and amplifier.  On those
three bands, there is typically 2 watts or less reflected.

On 15 and 10 meters, I can tuned close to 500W watts but the reflected
is pushing 10 watts (or more) depending on which portion of the band I
test.

I've checked L-14 and L-15 including cleaning carbon residue from the
internals.  Replaced  C-68 & C69 as well as C-75 & C-76 Mica caps.
(changed these just because I was stumped).  Doubled checked to make
sure that 30L-1 Service Letter #1008 was incorporated (it was), so, now
looking for advice.

ANY advice/assistance will be greatly appreciated.

Jim Bull/Ke3nK