[Amps] LK550-ZC

[Gudguyham at aol.com]

In a message dated 10/28/2007 10:48:30 P.M. Eastern Daylight Time,  
hphillips at mho.com writes:

Can  someone tell me what the difference is between the LK550-ZA or 
LK550-ZB to  the LK550-ZC?

Thanks,
K7XM
Hugh



Usually the difference was ZA was a straight amplifier with no protection  
circuits like an Sb-220.  The ZB had some protection circuits like High  plate 
current shut down, the ZC had several more protection circuits, Like High  SWR 
shut down, high grid current shut down.  Other than that they are  pretty much 
the same.  At least that was so with the LK-500  series.   Lou



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