[Amps] Overdrive protection

[Carl]

What is wimpy with those tubes?


----- Original Message ----- 
From: "Richard Solomon" <dickw1ksz at gmail.com>
To: <amps at contesting.com>
Sent: Thursday, July 26, 2012 12:48 PM
Subject: Re: [Amps] Overdrive protection


> Or, to play Devils Advocate ... why do they design Amps with such wimpy 
> tubes
> when more substantial tubes are readily available ??
>
> 73, Dick, W1KSZ
>
> On Thu, Jul 26, 2012 at 9:36 AM, Vic K2VCO <k2vco.vic at gmail.com> wrote:
>> Alpha's email newsletter talks about damage to amplifiers as a result of 
>> overdrive -- the
>> example is given of amplifiers designed to produce 1500w output with 40w 
>> drive being
>> driven with 150w. They say that there is a log maintained by the firmware 
>> which records
>> overdrive incidents and that they won't repair damage caused by this kind 
>> of abuse under
>> warranty.
>>
>> I am sympathetic to their attitude and don't approve of the philosophy 
>> that all knobs
>> should always be set to 11. But sometimes it's unintentional.
>>
>> My question -- and maybe there's an Alpha employee on the list who wants 
>> to answer -- is
>> "isn't it possible to make an overdrive protection circuit that will 
>> cause the amplifier
>> to fault fast enough to protect the tubes and components?"
>>
>> --
>> Vic, K2VCO
>> Fresno CA
>> http://www.qsl.net/k2vco/
>>
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