[Central-Electronics] Slicer PS-1 help

[Jim Candela]

-----Original Message-----
From: central-electronics-bounces at mailman.qth.net
[mailto:central-electronics-bounces at mailman.qth.net] On Behalf Of K6JEK

Do any of you have any experience servicing the PS-1 in the sideband  
slicer?
It sure would be great if one of you knows the procedure for  
adjusting those trimmers.

Thanks,

Jon, K6JEK


Jon,

 If this PS-1 is the same as in a CE 20A, then you drive it with a sine
wave around 1 KHZ and look for equal amplitude outputs that are 90
degrees in phase from each other (1/4 wave) . If you look at the two
outputs on an oscilloscope ( X:Y setup) you should see a near perfect
circle. The 90 degree phase shift and amplitude balance should remain
pretty much constant from 300 - 3000 hz. 

I have set up a 20a PS-1 before this way. It's not magic.

See the following link, set both fx and fy to 10hz and the initial phase
to 90 degrees.

http://www.ngsir.netfirms.com/englishhtm/Lissajous.htm


Regards,
Jim
WD5JKO