[Amps] Amps Digest, Vol 229, Issue 20

[chris at chrishays.com]

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From: amps-request at contesting.com
To: amps at contesting.com
Sent: 1/23/2022 09:00:02
Subject: Amps Digest, Vol 229, Issue 20

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>Today's Topics:
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>    1. Re: new Alpha (Rob Atkinson)
>
>
>----------------------------------------------------------------------
>
>Message: 1
>Date: Sat, 22 Jan 2022 17:57:41 -0600
>From: Rob Atkinson <ranchorobbo at gmail.com>
>To: MU 4CX250B <4cx250b at miamioh.edu>
>Cc: BILL KENNAMER <k5fuv at prodigy.net>, Louis Parascondola
>	<gudguyham at aol.com>, 	"amps at contesting.com" <amps at contesting.com>
>Subject: Re: [Amps] new Alpha
>Message-ID:
>	<CALWD7Z4jUQDY4KL9pMCayJD-7Zk-9WzE=e8sHivaAWgzHvk=8w at mail.gmail.com>
>Content-Type: text/plain; charset="UTF-8"
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>On Sat, Jan 22, 2022 at 8:31 AM MU 4CX250B <4cx250b at miamioh.edu> wrote:
>>  Is there hard evidence that Chinese tubes are inferior?
>
>If you mean statistical data, I don't know of any.  RF Parts may keep
>track of this.
>
>I'm only aware of claims made by hams regarding duds from China.  But
>there are all kinds of operators, some skilled and some who don't know
>how to handle a tube properly, plus results vary across tube types and
>years and factories I think.  I have a pair of RF Parts 3-500ZGs in an
>amplifier that are Chinese but they've been working FB for 21 years.
>OTOH I've heard all sorts of negative comments regarding Chinese 811As
>and 572Bs.
>
>Rob
>K5UJ
>
>
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>End of Amps Digest, Vol 229, Issue 20
>*************************************