[AMPS] Blown TL922A... What to do?

[measures]

>>>>>I don't have access to QST archives - is there somewhere that explains
>the
>>>>>mechanism, or could you go over it?
>>>>>
>>>>I posted the QST photo on my Web site.  See Figure 23.  The Z
>>>>transforming mechanism is an concealed L-network.  It is explained in
>>>>posts in the AMPS archive.
>>
>>>Can you give me a rough date, to cut down on the searching?
>>>
>>around a week ago?
>
>
>I don't recall seeing anything which included values and analysis - maybe I
>missed some posts.
>
There are few measurements.  The theory that allows it to happen is the 
main thing.  As I recall, during the Grate Debate, Mr. Rauch disclosed 
that there was a series-resonance in the AL-80 Tune-C,  I noticed that 
this resonance was just above the AL-80's anode-resonance.  I simply put 
two and two together. 
  To demonstrate how a hidden L network could substantially transform 
voltage in an amplifier, I designed an L network that would step up 120v, 
60Hz to over 11,000Vrms.  As I recall, I parked the series resonance at 
61Hz.  The calculated circulating current was around 100a.  The Rauchian 
camp was not eager to discuss this circuit.  

later, Steve
>
>


-  Rich..., 805.386.3734, www.vcnet.com/measures.  
end


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