[Amps] Low Pass Filters

[Joe Subich, K4IK]

Will writes: 

> One idea was to build it with a switchable operating class of 
> AB for SSB and C for AM, CW work. In other words, just kill 
> off the bias for CW and add it for SSB. 

Unless you plan to modulate that amplifier, you will need bias 
for AM service (amplification of low level AM).  If you don't 
bias it to at least AB you will have a disaster on your hands. 

73, 

   ... Joe, K4IK