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Re: [Amps] Coil Tapping

To: amps@contesting.com, kk7uv@bresnan.net
Subject: Re: [Amps] Coil Tapping
From: Vic K2VCO <k2vco.vic@gmail.com>
Date: Sun, 15 Jul 2012 23:26:23 -0700
List-post: <amps@contesting.com">mailto:amps@contesting.com>
Yes, you leave the tubes in place and the choke. The output capacity of the 
tubes and the 
strays from the choke are part of the circuit. Of course the amp power is OFF!

On 7/14/2012 8:50 AM, Steve Flood wrote:
> I am putting a new coil in my amp's Pi-Net.
>
> I am going to use the MFJ259b on the output to find the coil taps (as I did
> a few years ago) but I've forgotten some set-up details.
>
>
>
> For my 3x813's, my notes indicate I used a 2200-ohm load resistor to
> simulate the plate load which connects between the tube side of the blocking
> cap and chassis ground.
>
>
>
> My questions are - do I leave the tubes in circuit?  Do I leave the plate
> choke in circuit?
>
>
>
> Thanks,
>
> Steve KK7UV
>
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>

-- 
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco/


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