[Amps] SB-220

[G3rzp at aol.com]

In a message dated 27/12/2004 15:06:30 GMT Standard Time, r at somis.org  writes:

The only  RF-Tx 
amplifiers that do not benefit from a step-start are those that  already 
have one. 


To my mind, anything over the 100 watt level can benefit - and quite  
possibly, stuff under that too, if it has a lot of capacity and a low  
resistance/leakage reactance transformer. Personally, I've used step start on  all my HV 
supplies for 30 years - that's those of about 100 watts up - and had  very few 
problems. I've had electrolytics dry out and lost some 1N4008s, but  nothing 
built with better diodes.
 
73
 
Peter G3RZP