[Amps] HIGH FILAMENT VOLTAGE

[w8hw at comcast.net]

Mike is correct. I have used 27 inch of #18 wire on 3-500 tubes many times 
and got voltage down to 4.97 volts for each tube. The wire is just one big 
resistor and gets warm, but works fine. The life of 3-500 drops real fast 
with high filament voltage.

73, Bruce, W8HW
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-----Original Message----- 
From: Mike Waters
Sent: Saturday, December 10, 2016 19:15
To: amps at contesting.com
Subject: Re: [Amps] HIGH FILAMENT VOLTAGE

No need to use #12. Smaller wire = more compact. A shorter piece of #16 (or
maybe even #18), would do fine.

Depends on the current.

73, Mike
www.w0btu.com

On Sat, Dec 10, 2016 at 5:58 PM, kenneth Johnson <wa6rtp at hotmail.com> wrote:

> I used # 12 wire …total of 24 inches long  wound in a two inch coil placed
> in each filament lead .
> this  droped  the voltage on my henry 2k-3  filaments into specifation.
> your problem is finding enough room to get the coil in there.  at any rate
> …a length of wire is the way to go.
>
>
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