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Quad 22 interstage cap?

neskor

Member
2008-05-04 1:45 pm
I'm trying to restore my Quad 22 preamp.
On the internet there are two different schematics.
On first early version there is no input cap, interstage cap is 5000pF and output cap is 0.047uF.
In second (improved) version there is a input cap and interstage cap is now 820pF and output is 0.1uF.
Reason for input cap is known, output is changed probably to improve bass respone, but I don't know why this drastic change from 5000pF to 820pF for interstage cap?
 

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  • quad 22 - control unit 1.jpg
    quad 22 - control unit 1.jpg
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