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@telia.com>
> To: <amps@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@aol.com wrote:
>
>>I think the R-175A was wound with nichrome wire.
>>
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