![]() |
|
|
Thread Tools | Display Modes |
![]() |
#1 |
New Member
Join Date: Feb 2019
City & State: LATINA
My Country: Italia
I'm a: Knowledge Seeker
Posts: 3
|
![]() Hi!
I have an old (but good) Icom PS-15 power supply. This PSU was modified by a technical and now the original control circuit is no longer there. I want to make the original circuit because the modified circuit don’t work fine. The original circuit use an old components and i need help to find (if possible) equivalent (but modern) components. The first components is U05, rectifier/filter. The second is XZ-051, reference voltage. ![]() ![]() Thank you for help. Alberto |
![]() |
![]() |
![]() |
#2 |
Badcaps Veteran
Join Date: Jun 2012
City & State: ☻
My Country: Canada
I'm a: Professional Tech
Posts: 7,995
|
![]() XZ-051 is just 1 5.1 volt 1 watt zener diode. D4 & D5 could be any general purpose 1 amp diode like 1n4007
Last edited by R_J; 04-19-2021 at 11:36 AM.. |
![]() |
![]() |
![]() |
#3 |
New Member
Join Date: Feb 2019
City & State: LATINA
My Country: Italia
I'm a: Knowledge Seeker
Posts: 3
|
![]() |
![]() |
![]() |
![]() |
#4 |
Badcaps Veteran
Join Date: Jun 2012
City & State: ☻
My Country: Canada
I'm a: Professional Tech
Posts: 7,995
|
![]() That is the adjustment pot. R9 500Ω What you circled is the controls wiper. (the center pin of the control)
|
![]() |
![]() |
![]() |
#5 |
Solder Sloth
Join Date: Nov 2012
City & State: CO
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 7,089
|
![]() What was the hack that was done?
Doesn't appear to have much protection circuit in this original circuit... so is it better? I guess if the hack doesn't work, it doesn't work... |
![]() |
![]() |
![]() |
Thread Tools | |
Display Modes | |
|
|