[Amps] 3-500z Silly question

[Jim W7RY]

How are you derive the center tap for the cathode connection with DC 
supplied to the filament?


73
Jim W7RY

----- Original Message ----- 
From: "MIKE DURKIN" <patriot121 at msn.com>
To: "amps fourm" <amps at contesting.com>
Sent: Thursday, September 03, 2009 2:44 PM
Subject: [Amps] 3-500z Silly question


>
> Is the filament of the 3-500z 5V-DC or 5V-AC??
> The last two .PDF iv read its not stated as wich ....
>
> KC7NOA
>
>
>
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