[Repeater-Builder] 6M Sinclair Duplexer

[Com/Rad Inc]

We have a Sinclair 2H-30-3R6C duplexer which tops out at approxiamtely 
51.8 Mhz on the high notch...
Anyone ever create a "fix" to get this up another 1 or 1.5 Mhz ?

This looks like a cavity shrinking exercise

Ed Folta K9QPJ