>
>I have a Heathkit Warrior, so are you saying it is safe to remove the
>neutralization cap?
Remove all "neutralization" circuitry
>And if so what kind of provision should be made in its
>place?
Install lower Rp parasitic suppressors and a glitch R. .
>I have a Warrior that burns up parasitic suppressers and makes loud
>crackling sound when HV is turned on and biased by a terminal being grounded
>during tx/rec. I replace the parasitic suppressers, checked the
>neutralizing gap, and replaced tubes and it still does it. Needless to say
>its been sitting on the bench for a few months because of frustration.
>
>KRS
>
> Original Message -----
>From: measures <2@vc.net>
>To: carl seyersdahl <carlseye@tampabay.rr.com>; amps <amps@contesting.com>
>Sent: Monday, January 29, 2001 10:14 AM
>Subject: Re: [AMPS] linear amps
>
>
>>
>> >
>> > sooner or later I'll get it right. I've been watching the discuusions on
>> >"neutralizing GG amps". It's interesting but I've never seen anything in
>> >writing on the subject!
>>
>> >Can anyone tell me where to get some info on it??
>>
>> G-G "neutralization" exists only in the Rauchian World.
>>
>> Gonset was apparently the first to try neutralization. It was on a 4 x
>> 811A g-g amp. It tended to oscillate. I removed the "neutralization"
>> from one and it stopped oscillating. // Heath tried neutralizing the
>> Warrior. Although I never saw one oscillate, the Warrior reportedly
>> tended to oscillate. Heath apparently learned their lesson. The next
>> Heath amp., the SB-200, was not "neutralized". The SB-220 was not
>> "neutralized". The SB-230 is not "neutralized". // The AL-1200 was
>> built 2 ways. "Neutralized" and not. One of my suppressor retrofit
>> customers owns one of each. Both versions reportedly oscillated.
>>
>> >I'm always willing to learn something, if that's possible at this late
>date,
>> >HI, HI!! thanks. carl / kz5ca
>> >
>> I have learned that self-declared "experts" are quite unlikly to admit
>> error.
>>
>> The AL-1500 remains the only HF/MF 8877 amp. in the whole world that
>> has no VHF suppressor. /pse see Figure 24 on my Web site.
>>
>> Cheers, Carl.
>>
>> - Rich..., 805.386.3734, www.vcnet.com/measures.
>> end
>>
>>
>> --
>> FAQ on WWW: http://www.contesting.com/FAQ/amps
>> Submissions: amps@contesting.com
>> Administrative requests: amps-REQUEST@contesting.com
>> Problems: owner-amps@contesting.com
>>
>
>
>--
>FAQ on WWW: http://www.contesting.com/FAQ/amps
>Submissions: amps@contesting.com
>Administrative requests: amps-REQUEST@contesting.com
>Problems: owner-amps@contesting.com
>
>
- Rich..., 805.386.3734, www.vcnet.com/measures.
end
--
FAQ on WWW: http://www.contesting.com/FAQ/amps
Submissions: amps@contesting.com
Administrative requests: amps-REQUEST@contesting.com
Problems: owner-amps@contesting.com
|