Hi, I’m in need of some feedback for recapping the PSU of my Harrison 32 series. When analyzing the schematics and determinizing what is electrolyte/film/tantalum (I hope) I’m now in the process of ordering the caps. This is quite a challenge because many caps are hard to get. I need a variety of capacity and voltage, some types are very expensive in small quantities at digikey-RS-Mouser-Farnell.
First, can I deviate in the capacity, for example from 520 to 560µF - 1100 to1200µF - 32000µF to 33000µF? These are mostly the smoothing/decoupling caps.
Sec, Voltage specs, as long they match or higher I’m good?
Most of them are Axial, Radial is no problem as long there is space?
3rd, are caps without polarity (ex. Sprague 0.1 80VDC) indication film/foil caps? Do they even need recapping?
Thanx for any feedback!
First, can I deviate in the capacity, for example from 520 to 560µF - 1100 to1200µF - 32000µF to 33000µF? These are mostly the smoothing/decoupling caps.
Sec, Voltage specs, as long they match or higher I’m good?
Most of them are Axial, Radial is no problem as long there is space?
3rd, are caps without polarity (ex. Sprague 0.1 80VDC) indication film/foil caps? Do they even need recapping?
Thanx for any feedback!
Those vintage capacitors had wide tollerances anyway, so i wouldnt worry to much about the main filter caps. Furthermore these are usually not the ones to go first.
However the ESR of the output decoupling electrolytic is sometimes critical to maintain stability of the voltage regulator system, i would try not to replace that one if its not broken.
However the ESR of the output decoupling electrolytic is sometimes critical to maintain stability of the voltage regulator system, i would try not to replace that one if its not broken.
Hi, here for example in the schematic :
Correct? C11 and C3 are input smoothing - C14 and C8 are output coupling?
An externally hosted image should be here but it was not working when we last tested it.
Correct? C11 and C3 are input smoothing - C14 and C8 are output coupling?