Split Voltage Switching Power Supply for Power Amp - diyAudio
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Old 6th February 2006, 09:02 PM   #1
diyAudio Member
vectorplane's Avatar
Join Date: Nov 2005
Default Split Voltage Switching Power Supply for Power Amp

Brand new Switching power supply, open frame, made by Lambda
Still in original OEM box.

+ 45 Volt @ 2 Amp, continuous
- 45 Volt @ 2 Amp, continuous

Can deliver 3A peak for audio transients.

also 5V and 3V outputs @ 3 A, good as housekeeping voltages for lamps, relays etc.

Trimpot adjustable voltages from 43 - 50 V.

Voltages can also be lowered to as low as +/- 38V if needed, with a simple modification ( 2 parts) to the feedback loop.
This way it can also be used to power chip amps.

Instructions for use included. On request, full instructions and parts (1 resistor, 1 zener diode) for lower voltage modding can be provided at 50 cents extra.

Low EMI, short-circuit protected.

Size: 4 x 7 x 1.75 inches.
Excellent replacement for large, heavy power transformers, makes possible slim, sleek, lo profile power amp design.

Total continuous output power: 200W. multiple units can be connected in series/parallel for greater currents or voltages.

Price : $20.00 US, will ship to NA for $4, Europe for $6.

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Old 23rd April 2011, 08:41 PM   #2
diyAudio Member
Join Date: Feb 2011
Hello Andy @vectorplane,
I am interested in purchasing some of these Lambda power supply's. Please advise.

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Old 23rd April 2011, 11:48 PM   #3
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jmillerdoc's Avatar
Join Date: Mar 2009
Location: Lawton, OK, USA
What are the physical dimensions?
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