500VA 50v DC Unregulated Power Supply (contains very nice Antrim t/former) - diyAudio
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Old 22nd August 2012, 01:07 PM   #1
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Join Date: Jan 2004
Location: UK
Default 500VA 50v DC Unregulated Power Supply (contains very nice Antrim t/former)


I have an unregulated PSU which puts out +/- 50V DC (@ 230VAC input). It's based around a 500VA toroidal (Antrim - mechanically silent, very nice), into a large bridge rectifier and 4 separate banks of smoothing caps (from memory, there's somewhere between 30-40,000 uF of reservoir capacitance). The PSU is fitted into a plain black instrument case (no rack ears), with front handles.

I used to use it for nearfield studio monitors, powering amplifiers. I've been using it off a variac recently to test modules (connect DVM to output, then ramp up variac to desired voltage).

It's very heavy. Can post it in the UK for around 10.00. Offers taken via PM. It's currently in SE London.

BTW - It's fused on all rails, with mains coming in via IEC and DC going out via Neutrik Speakon / Powercon (I forget which!).

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Old 23rd August 2012, 05:13 AM   #2
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Location: Belgium the land of chocolate
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