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Thread Tools | Display Modes |
04-19-2021, 08:38 AM
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#1 |
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New Member
Join Date: Feb 2019
City & State: LATINA
My Country: Italia
I'm a: Knowledge Seeker
Posts: 3
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Icom PS-15 power supply
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 |
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04-19-2021, 11:33 AM
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#2 |
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Badcaps Veteran
Join Date: Jun 2012
City & State: ☻
My Country: Canada
I'm a: Professional Tech
Posts: 7,995
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Re: Icom PS-15 power supply
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.. |
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04-19-2021, 02:07 PM
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#3 |
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New Member
Join Date: Feb 2019
City & State: LATINA
My Country: Italia
I'm a: Knowledge Seeker
Posts: 3
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Re: Icom PS-15 power supply
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04-19-2021, 05:09 PM
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#4 |
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Badcaps Veteran
Join Date: Jun 2012
City & State: ☻
My Country: Canada
I'm a: Professional Tech
Posts: 7,995
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Re: Icom PS-15 power supply
That is the adjustment pot. R9 500Ω What you circled is the controls wiper. (the center pin of the control)
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04-19-2021, 11:08 PM
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#5 |
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Solder Sloth
Join Date: Nov 2012
City & State: CO
My Country: USA
Line Voltage: 120VAC 60Hz
I'm a: Hobbyist Tech
Posts: 7,089
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Re: Icom PS-15 power supply
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... |
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Linear Mode
