[AMPS] TL-922A 10m conversion

[Rich Measures]

>
>I need the values for the Pi input caps on 15 and 10m.
>
 For solid-state transceivers, Cin should have about 25 ohms of reactance 
[Q=2], so 220pF for 28MHz., and 270pF for 21MHz is in the ballpark  .  
However, the reactance of the transceiver's Chebyshev filter, as well as 
the length of coax between the transceiver and the amplifier, affects 
Cin.  The best solution is to make everything adjustable.  Tune for best 
SWR, shut down, and substitute fixed values.  Expect to change the number 
of turns on the inductors.   


Rich. Measures.  Web site:  www.vcnet.com/measures


--
FAQ on WWW:               http://www.contesting.com/ampfaq.html
Submissions:              amps@contesting.com
Administrative requests:  amps-REQUEST@contesting.com
Problems:                 owner-amps@contesting.com
Search:                   http://www.contesting.com/km9p/search.htm