Can a 20" tube be used ?

ScumBum

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Can a 20" tube be used as a tube swap for anything ? Or is it useless ?
 
In my experience, you will have convergence troubles. I messed with a 20" tube in a 4900 for days and could not get it right. Finally swapped in a 19" and was able to dial it in easier.
 
In my experience, you will have convergence troubles. I messed with a 20" tube in a 4900 for days and could not get it right. Finally swapped in a 19" and was able to dial it in easier.

Interesting .

Can a chassis be bought for it so it can run in an arcade cab ?
 
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