[HomeBrew] about my SSB/CW tcvr project.

[Xu]

Hi!
  I just finish my 10m DSB/CW Xcvr project,working great.now,I'm planing
design a Muliti-band(3.5-30MHz,only cover amateur band)SSB/CW
transceiver,IF amplifer are 3 stages dual-gate MOSFET(3SK122,or
3SK83/84,which is better?)
12-pole ladder variable BW crystal filter(IF=4.43MHz),and RF pre-selecter
in 2 bands(3.5-10,10-30MHz ,VVC tuning)
,bal-de-mode is diode ring.
  Now,I want to design a very good AGC system.with AF and IF input,fast and
slow swatchable.Does any have the experence or whould like tell me where can
I find the schematic?
       73! Xu