[Amps] Re: Re: National R-175 Choke

[Jan Erik Holm]

Could be. Just as info the amp I´ve got with
a R-175 in it is a 3 x 4-400A unit and it runs
excelent 160-10 meter (NOT 12-17-30 meters),
did once try to tune it on 17m but with a big
bang as result and one wire got ripped off at
the R-175 so at least I know it will resonate
on 18 MHz, never tried 12 or 30m and been to
lazy do dip it (hi).

73 Jim SM2EKM
--------------------------------------------------

George & Marijke Guerin wrote:
> Gentlemen:
> 
> I thought the reason National went to R-175A was to avoid a 15 meter
> resonance in the R-175.  I think they are both 1950s vintage, although the
> R-175 might have been made in the late 1940s.
> 
> 73    George    K8GG
> 
> ----- Original Message -----
> From: "Jan Erik Holm" <sm2ekm at telia.com>
> To: <amps at contesting.com>
> Sent: Saturday, March 29, 2003 2:22 AM
> Subject: [Amps] Re: National R-175 Choke
> 
> 
> I´ve heard that this thing will cover 1.5 - 30 MHz
> without any resonance, must be due to the nicrome!!
> 
> Regards
> 
> SM2EKM
> -----------------------------------------------------
> 
> W0YR at aol.com wrote:
> 
>>I think the R-175A was wound with nichrome wire.
>>
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