[Heathkit] SB-220 Load Cap Bigger Than Stock ?

[kc7hkp at comcast.net]

I Guys.
My First HF amp getting ready to install.
I have a SB-220 Amp that i am going through before putting on line. I noticed that the Load Capacitor is almost as big as the Tune Cap.
it is about 1/2 inch shorter and the plates are closer together, it is a lot bigger than the stock Load capacitor thats for sure.
I am not sure why it was installed and just wondering if any one has any ideas, it does have the Eimac 3-500Z tubes and no extra frequency just 10 through 80 on the front panel showing.
Have not put power to it yet.
Thanks very any ideas !
George
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KC7HKP 
George Yazzolino 
14801 NE 20th Circle 
Vancouver, Wa. USA ,98684 
Grid CN-85 
kc7hkp at arrl.net