[Johnson] Ranger Grid Block

[Jim Brannigan]

I replaced mine with a single 47uf 200V capacitor.

Jim

> Not a chance.   They needed 30 uF and this was a cheap and effective 
> way to get it.
> Just a guess, of course.
> 
> Jon, K6JEK
> 
> 
> On Sep 24, 2006, at 7:52 PM, Rick Brashear wrote:
> 
>> Do you suppose the Johnson people in there quest to insure reliable 
>> operation placed the two (2) 15 uf/150 vdc electrolytic capacitors 
>> C90a and C90b in parallel in the event one went bad the other one 
>> would insure the grid of the 12AU7 keyer tube would remain negative?  
>> If so, do you think with the more reliable capacitors we have today it 
>> would be safe practice to use a single 30 uf/150 vdc capacitor in 
>> their place?
>> Thanks,
>> Rick/K5IZ
>>
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> 
> 
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