LM317T Voltage Regulator with Pass Transistor

So Nice! Vacuum Tube Sound! YAHA (Yet Another Hybrid Amp) is so Good! Home-brew hybrid single tube stereo amplifier for headphones. Modified YAHA Amplifier orign from Germany 12AU7/ECC82 (MATSUSHITA) with NE5532P OP-Amp. Power Supply : +12V DC 1A Battery Eliminator No voltage regulator(6.3V) is used (12AU7/ECC82) Headphones : ULTRASONE HFI-580 Music Source : Creative ZEN MP3 Player Built in Oct. 2009



http://www.youtube.com/watch?v=am3Fh7ojdhw&hl=en

This Amplifier has lots of new parts and upgraded options installed. Including new Power capacitors and Transistors. All electrolytic caps on both audio boards were replaced with Nichicon Muse capacitors. New OPAMP IC's installed. New voltage regulator and signal diodes, Gold plated RCA sockets fitted along with new Speaker binding posts too. All parts were tested for more than 5% variation and any parts that had varied was replaced. We then completely rewired the DC Power and Audio output sections with silver-plated wire. The unit sounds fantastic and should be good for the next 30+ years.



http://www.youtube.com/watch?v=9O4f5SM3BMQ&hl=en

[no high voltage today] Video by viewer request. Lm386 datasheet: www.alldatasheet.com The song is: Infected Mushroom semi nice Comment, rate and subscribe! FAQ: Q: The sound s0xx0rz, fix it! A: Can't, since there are barely any parts. Q: How do I add volume control? A: Either in series with the speaker (volume) or between pin 1 and pin 8 (gain) Q: Why is there a 7805? A: To conserve power, you can go without it if you feel like it. EDIT: Too many of the comments are goddamn retarded, so I will no longer reply. Read the other comments, your question is probably answered already.



http://www.youtube.com/watch?v=E5NjcZkJtFM&hl=en

Just a short project to fill some time. The LM317 voltage regulator used as an amplifier. The thing was horribly inefficient, running at about a half of an amp. Surprisingly, it took 32 volts with the heat sink and didn't burn up, so I took the heat sink of to see what would happen. I've estimated it was *trying* to dissipate about 14 watts!



http://www.youtube.com/watch?v=2wEYdEEx178&hl=en

Lecture Series on Analog ICs by Prof. K.Radhakrishna Rao , Department of Electrical Engineering,IITMadras. For more details on NPTEL visit nptel.iitm.ac.in



http://www.youtube.com/watch?v=Rjc2eejVHVY&hl=en

You probably are aware that you can use the LM317 adjustable voltage regulator IC as a constant current source, but did you know it can be used as an audio amplifier? Watch the video to see how I made a very simple class A amp.



http://www.youtube.com/watch?v=gKRGHPDoUZI&hl=en

The sound from camera is shit. But the amp sounds really good in person. Especially good for jazz-like songs. This is my first vacuum tube construction - not finished yet. I'll try to connect something better to this than pc. This is probably the first E130L tube amp on youtube! I use E130L (Teonex) as power tube, EF86 (Tesla) in preamp and SG4S (Lamina) in voltage regulator. RMS power 2x11W (power supply ~100W O_O) The project based on: www.jogis-roehrenbude.de (thanks!)



http://www.youtube.com/watch?v=yLdQBW_b5-E&hl=en

Into the www.diyaudio.com, a comparison thread is running... the first subject is how to feed the long tail, a voltage regulator is good enougth, a zener is fine?, or do we need a constant current source (ccs). This small slide movie was made to show forum friends, and also my Orkut friends, about what is going on.



http://www.youtube.com/watch?v=V24a4XfLy6o&hl=en

My Keppinger-design theremin power supply/amp working, playing music for its first time. Song is Traffic's "Low Spark of High-Heeled Boys." This was built completely from scratch by myself. The cool purple-glowing tube is a VR150/OD3 voltage regulator tube. I also built the mute switch.



http://www.youtube.com/watch?v=auzvXnjG8-8&hl=en