SB220 Question - no plate current

[Mark Graalman WB8JKR]

  The 3-500 has a 5 volt filament

Mark  WB8JKR


On Mon, 12 Apr 2004 18:11:14 -0400 Kevin J Ward <kevin_ward at JUNO.COM>
writes:
> Jim -
>
> You didn't indicate what kind of meter you are using to measure the
> filament voltage.  It seems like you have only slightly more than
> half
> the required voltage.   Doesn't the 220 have a separate filament
> transformer to supply those 29 Amperes?  When you rewired the amp
> for 110
> volts did you remember to switch the filament transformer primaries
> to
> 110, or are they still wired for 220?
>
> Kevin  N2IE
>
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