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Audio Power Supply For Audio - Sparkos Labs, Inc.
https://sparkoslabs.com/audio-power-supplies/
The ultimate Power Supply for Audio: We now have power supply boards to allow people to build their own power supplies. Just choose and install some voltage regulators, add a power transformer, and get either a dual power supply (1 positive and 1 negative output) or a quad power supply (2 positive and 2 negative) regulated output voltages.
Power Supplies – BuildAudioAmps
http://buildaudioamps.com/power-supplies/
Linear Power Supplies for Audiophiles - Audio Bacon
https://audiobacon.net/2018/06/29/linear-power-supplies-for-audiophiles-getting-closer-to-live/
Linear Power Supplies for Audiophiles – Getting Closer to Live. NEW! Check out the 2021 Linear Power Supply for Audiophiles Shootout! We find power supplies in our tiny cube-shaped iPhone charges, laptop power bricks, and in every wall wart. They help convert mains AC (120V) into usable DC power (12V) for our sensitive electronics.
Preamplifier power supply - High-End Audio Discussion Forum
https://forum.audiogon.com/discussions/preamplifier-power-supply
A preamp or power amp uses tubes or transistors to AC-modulate (to the tune of the music) voltage coming from a power supply, which is the source of all power delivered to the load. Transistors or tubes act as "control valves", allowing more or less of the PS voltage to pass to the output, hence the term "valve" adopted in the UK for tubes.
Power Supply for Tube Preamp | diyAudio
https://www.diyaudio.com/community/threads/power-supply-for-tube-preamp.240590/
The plan is to send 12 VDC down two wires of the cable, and the 300 volts down the other two. The preamp has 4 separate channels, 2 are 12ax7 phono stage left and right, and the other 2 are 12ax7 line level preamp channels. This is a continuation of a project I was building a few weeks back which I decided to scrap.
Power supply madness – PS Audio
https://www.psaudio.com/pauls-posts/power-supply-madness/
The power supply is the actual amplifier. The part of an amp we call the amplifier is just a modulating valve. And the assumption is that valve modulates a perfectly stable power supply perfectly. Any variation in the power supply means even perfect modulation results in imperfect amplification.
PSU for Mcintosh C8 (page 4) - Amplifiers - Lenco Heaven ...
https://www.lencoheaven.net/forum/index.php?topic=22988.45
Pre-amp uses three 12ax7, heaters are connected in series. It has a center tap (9 pin). here is a scheme So some people advise to connect one side of the heater to the cathode, others – center tap to the cathode. Also, there is a recommendation to connect center tap via resistor with capacitor in parallel. So, I’m a bit lost.
Power Supply for Preamps - sound-au.com
https://sound-au.com/project05b.htm
If a single AC supply is connected between GND and AC2, the rectifier is a full-wave voltage-doubler type, and with an input of 16VAC will provide about +/-20V DC at a current of up to at least 100mA - this should be enough for the most power-hungry preamp. All diodes are 1N4004 or similar (400V / 1A rating for all).
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