Soundcraft Series One PSU

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CFB4
pluggin' in mics
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Soundcraft Series One PSU

Post by CFB4 » Mon Oct 13, 2014 2:50 pm

Hi all,
recently rebuilt a Soundcraft Series One and I'm currently running it of my bench PSU - sounds quite nice so I'm going to finish by building a new PSU for it. There don't seem to be any off-the shelf options that suit: it's a singe rail 0-40 volt PSU. Is there a design I could adapt? I think I'd prefer a regulated supply. Thanks cfb4
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The Scum
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Post by The Scum » Mon Oct 13, 2014 4:13 pm

40V is a somewhat irregular value.

A good option would be to find a 48V Power One linear series, and adjust the trimpot downwards to 40V. They turn up on Ebay regularly.

Relevant part numbers are:
HB48-0.5-AG
HC48-1-AG
HD48-3-AG
HE48-4-AG

The number between the hyphens is the amperage rating.
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CFB4
pluggin' in mics
Posts: 39
Joined: Sun Jan 24, 2010 2:31 am

Post by CFB4 » Tue Oct 14, 2014 1:31 am

Thanks much :) looks like an elegant solution!
"It's the most devastating moment in a young mans life, when he quite reasonably says to himself, 'I shall never play The Dane!' "
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CFB4
pluggin' in mics
Posts: 39
Joined: Sun Jan 24, 2010 2:31 am

Post by CFB4 » Thu Nov 27, 2014 4:56 pm

Hey thanks for this. Picked up the 4 Amp version and I can hear the difference already - great PSU!! Cheers :D
"It's the most devastating moment in a young mans life, when he quite reasonably says to himself, 'I shall never play The Dane!' "
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