[Amps] SB-220 tuning cap needed

[Richard]

>
>
>-----Original Message-----
>
>>rebuilding my sons SB-220... swear he used this thing for a welder. (He's
>>an IK8, maybe that has something to do with it!!)  The wider spaced one is
>>ok in a pinch, but would rather use the origiinal 26-131 (saves anxiety
>>about the bandswitch!)
>
>I do not understand why use of the wider spaced cap would cause anxiety
>about the bandswitch.

€  When a glitch happens, if the Tune-C arcs first it protects the 
bandswitch.  If a higher p-v Tune-C is used - like in later model 220s, 
the bandswitch arcs first, the contacts get toasted.  There are some 
photos of this on my Web site.  Arced Tune-Cs can be cleaned up.  Arced 
bandswitches are usually history.  

cheerz, Bob

-  R. L. Measures, a.k.a. Rich..., 805.386.3734,AG6K, 
www.vcnet.com/measures.  
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