[time-nuts] Electrolytic Capacitor Redux

[Perry Sandeen]

List,
 
Thanks to all for their comments.
 
Wrote: The high grade aluminum electrolytics and the
tantalums will look quite different on a network analyzer as you sweep them
from 100 KHz up.
 
OK. Since these of just being used for DC PS bypassing on
individual boards I think I’ll be OK with the Panasonic electrolytics.
 
Wrote: Take a look at the Aluminum Organic Polymer
Electrolytics. Available in 105 °C and 125 °C. They have very low ESRs. In the
milliohms.
 
Yowza! Excellent specs but they cost more than tantalums
 
Wrote: bought Vishay/Sprague caps.
 
I looked at what Mouser stocked but they don’t match the
capacitance values I need.
 
My goal when it comes to huge uF caps HP uses in their PS’s
is to find a kind of common(s) denominator so I can get the +10 prices. So some
of my equipment my get a higher capacity and/or voltage than the OEM version.
 
One thing I’m not going to do is use the OEM screw terminal
caps because of their price. Instead I’m going to use the snap-in style and
mount them using #16 solid copper wire.
 
I checked the HP 3586 PS schematic and the are specing 40
micro-volts ripple before the regulators. Tight!
 
Regards,
 
Perrier
SandeenpaXXatXXyahoo.com.