[Amps] Gettering 3-500 Tubes

[rbethman]

Yes, a bad tube will still arc over.

The biggest issue is arcing over to the filaments.

Protect the filament transformer/windings with a large enough wattage 
resistor, that does NOT significantly reduce filament voltage.

You can still bring it up, (B+), slowly and look for issues.  That will 
only work with a separate filament transformer.

The biggest issue that I see is *STILL* the HV section capacitors.  He 
has been essentially "reforming" them so far.  Heath did NOT use high 
quality capacitors.  I'd replace them.  It is *Cheap* insurance!

Bob - N0DGN

On 11/6/2011 7:22 AM, Rick Stealey wrote:
>
>> Go ahead and try them as they are after you've gotten the rest sorted out.
> But what if they arc over?  Isn't that going to do some serious damage to the SB200?
> If you don't getter them, how about at LEAST put a resistor in series with the B+ to limit the current.
> A bad tube will still arc (snap)  won't it?
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