Glen's 700 series II build

grapplesaw

Veteran and General Yakker
Joined
Aug 13, 2014
Messages
2,765
Location
Vancouver
Tagline
---
So I wanted to get something done today and took on the task of conditioning the power caps.
i got an old heathkit it-28 capacitor checker of eBay and installed some new power supply caps and one other the supplies the green eye.

so after much tinkering I was willing to try it on an old cap.
first run compete at 25 volts and now completely discharged will run a 50 volt charge.

i reason in using this old unit instead of me newer sencore is it charges slower and discharging is easy, flick of the switch.

i will the go on the 100 volt cycle but not the 150. Dennis suggested charging at above rail voltage so I will configure a setup like the one Lee has posted using a bridge rectifier and a varic power supply. What do you guys think of a 115 volt conditioning voltage for this on a 100 volt cap?

i will keep track of the can temps as I go throught the process
it takes about 1 hour per charge so far.
 

Attachments

Top