[AMPS] Titan 425 Question

[measures]

>
>
>Rich said:
>
>> Firstly, I would try to determine if the problem is in the tubes or in 
>> the amplifier.  To make this determination, I would test the tubes for 
>> abnormal leakage.  To do this you need a +/- 5kV high-pot tester, 
>> current-limited to a couple of hundred uA.  .  With +5kV on the anode, 
>> you should be seeing under 10uA.  
>
>Rich,
>What is your reference for this?
>
€  Personal experience with 3CX800A7s and the 425.  

cheers, Lane

>Ku7i
>
>
>>If the measured leakage decreases when 
>> the anode is negative, you could have a bit of gold-sputtering --  which 
>> is Not necessarily a fatal condition.   Loose gold will definitely mess 
>> with grid-current readings.
>> cheers, Sam.    
>> 
>> 
>> -  Rich..., 805.386.3734, www.vcnet.com/measures.  
>> 
>> 
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>
>
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>


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


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