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Power supply for Grado RA-1
Power supply for Grado RA-1
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Old 13th April 2002, 01:09 AM   #1
vectro is offline vectro
diyAudio Member
Join Date: Apr 2002
Default Power supply for Grado RA-1

Attached is a schematic for a power supply for the Grado RA-1 amp. Does anyone have any comments or suggestions?
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File Type: png grado ra-1.png (8.4 KB, 270 views)
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Old 13th April 2002, 01:18 PM   #2
paulb is offline paulb  Canada
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Join Date: Jun 2001
Location: Calgary
Is this something you're proposing, or is it an existing box that you want to upgrade?
If it's existing, are you having any problems that you want to solve?
A full-wave bridge rectifier would be a place to start, instead of the half-wave shown. You'll need a different, centre-tapped transformer.
Check the www.headwize.com site for projects that have power supplies for ideas.
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