[Amps] Nichrome wire for suppressors

Vic K2VCO vic at rakefet.com
Tue Feb 10 23:15:16 PST 2009


Gudguyham at aol.com wrote:
>  
> In a message dated 2/10/2009 10:36:09 P.M. Eastern Standard Time,  
> Gary at doctorgary.net writes:
> 
> Anyone  have a suggestion where I can find quick & easy find about a 
> foot of  nichrome wire to be used in parasitic suppre
> 
> 
> Does anyone dare answer this?

Sure. The use of nichrome wire in VHF parasitic suppressors is controversial. A very good 
explanation of VHF stability in vacuum tube amplifiers which argues *against* the use of 
nichrome wire can be found at <http://w8ji.com/vhf_stability.htm>.

If you want to see the opposite side, look at Rich measures' site, 
<http://www.somis.org/>. He also will sell you a kit including wire and the appropriate 
solder and flux to make a nichrome suppressor.

Personally, I think that although many of Measures' ideas are useful -- I like his fast 
t/r switching circuit -- he is wrong about the nichrome and W8JI is right.

That wasn't bad, was it?
-- 
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco


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