[AMPS] Re: Poor science

[2@vc.net (measures)]

>
>
>----- Original Message -----
>From: Jon Ogden <jono@enteract.com>
>:
>>
>> > The amplifier was in STANDBY ..... NOT KEYED .... but with all voltages
>ON !
>> > I had a reason to remove the top cover (high voltage interlock removed),
>I
>> > slowly raised the cover from the front of the amplifier leaving the rear
>of
>> > the cover sitting on the amplifier ... when I got the front of the cover
>> > raised about 3 inches ... all of a sudden the amp made this huge big
>grunt
>> > and the circuit breaker tripped off. After I removed the top cover and
>>
>> What happened is that you changed something in your circuit.  Yes!  The
>> cabinet of the amp is part of the circuit.  Some sort of resonance was
>> created by lifting the cover and hence your oscillation.  But the boundary
>> conditions of the problem were changed.  So you can't say that Tom's claim
>> is wrong.  Those tubes would not have experienced oscillation had you left
>> the cover down.  But having them keyed and moving the cover caused things
>to
>> change inside and BOOM!
>
>Jon .... look at what you just said .... quote "But having them keyed and
>moving ...." Now look at the first line of my description of what happened
>....
>"The amplifier was in STANDBY ..... NOT KEYED .... "
>
Perhaps Tom and Jon have the same reading malady, Terry?

cheers

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