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[AMPS] 8171 filament choke?

To: <>
Subject: [AMPS] 8171 filament choke?
From: (Rich Measures)
Date: Sun, 21 Feb 1999 17:06:43 -0800

>Hello again,
>Does the 8171 require a filament choke?  

?   The fil. is RF grounded.  

>What is the "classic"
>construction method for large filament chokes in an amplifier of "this
For an 8160/3cx10000A7, the fil. choke goes in the pri. of the fil. 
transformer.  The fil transformer is insulated from chassis ground.  

>Henry 8877 amplifiers in the console form had the filament transformer in
>the power supply pedestal, fed up with large wire to sprague "bulk-head"
>feed through caps. 
>What would one use as an 8171 high current panel feed through cap(s)  if
?   The fil. transformer goes under the chassis, next to the tube socket. 


R. L. Measures, 805-386-3734, AG6K,  

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