P-3A DIY power supply

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Based on a recent post by Dan Wright, I decided to build my own power supply to replace the cheesy, stock unit that came with my Perpetual Technologies P-3A. I contemplated purchasing a Monolithic but I felt that $350 was way too much money to spend on something that just outputs 9v of AC.
I completed the new PS yesterday and the results are very impressive! This is what I've heard:
darker background
lowered noise floor
better imaging - greater separation, wider soundstage
better dynamics
bass response more extended with greater weight
Required parts from Digi-Key:
TE62081-ND - 9v 5.5 amp toroid transformer
HM583-ND - Aluminum box
CCM1215-ND - IEC connector w/RF filter
283-2346-ND - fuse holder
The Talema transformer has a dual primary so I wired the inputs and outputs in parallel. The voltage on the secondary of the new transformer is about 0.5 volts higher than the stock AC adapter but this hasn't proven to be a problem (there's obviously a voltage regulator inside of the P-3A and I'm quite confident that it can take the extra 0.5V).
I used the stock AC connector and cord off of the P-3A power supply and picked up a fuse and 8 connector terminal strip from Radio Shack to complete the package.

--Mike

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Parts Connexion

Topic - P-3A DIY power supply - MikeCh 11:28:04 11/09/00 (7)

Re: P-3A DIY power supply - Nick 11:58:16 11/09/00 (6)

Best source for 9V Alternating Current battery? ;) (nt) - MikeCh 13:56:29 11/09/00 (2)

Re: Best source for 9V Alternating Current battery? ;) (nt) - Nick 14:04:02 11/09/00 (1)

I think it might be easier ... - MikeCh 14:34:32 11/09/00 (0)

Re: P-3A DIY power supply - Dan W 12:04:22 11/09/00 (2)

Re: P-3A DIY power supply - Nick 13:55:42 11/09/00 (1)

somebody shoot me... - Nick 14:00:24 11/09/00 (0)

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