[Amps] suppressors

[carlseye@tampabay.rr.com (carl seyersdahl)]

 Here is a point I've never seen discussed , anywhere, and I've often
wondered about it !!
   what reason is there for a specific value of resistor in a
parasitic suppressor. ?? I have seen 50 ohms, 100 ohms, and two 50 ohms in
parallel.. ! Is there a valid reason for using any particular value ?? over
the years it seems that 50 ohms was the usual value, but today I found in
the amp I'm working on , a 100 ohm, two watt unit.
 Any answers out there ??? thanks !
 carl / kz5ca