GAINCLONE - LM3886 - POWER AMPLIFIER

This is my home made GainClone Amplifier based on famous IC LM3886.

I also included a pre-amplifier and 3 band equalizer (Baxandall type) circuitry in this project.

The speakers also are hand made.

The sound is very clean and good, above what I expected.

Rate, Comment, ask questions, tell me what you think!

Category:

Science & Technology

Tags:

• GAINCLONE
• LM3886
• AMPLIFIER
• DIY
• ELECTRONIC
• HI-FI.

[raymondleeleggs]

Watts per channel?

[Cesarsound1]

@raymondleeleggs

56W RMS per channel.

Thanks.

[Cesarsound1]

Yes, I did the additional windings of coper wire # 14 in order to up the final rail DC voltage to 35v. Actually these extra turns adds +3vac to each side (+v, -v), it is in series with the main secondary windings. I did this solution in order to increase the power output of amplifier.

[haz939]

Is that monitor a W2261VP?

[Cesarsound1]

@HeavyMetal80sRules

Hello, I'm fine, thanks for your comments. To connect the VU I used 2 germanium diodes (1N60) and 2 resistors 10k for each VU. This circuit is rectifying the audio output of LM3886. If needed I can send the schematic to you.

[codex653]

is that your own windings (in red) around the transformer? what's it powering?

[Cesarsound1]

@cumesoftware

This is a mystic belief. You are correct, there will have more voltage drop than a single bridge configuration. To my understand I do not see any improvement using dual diode bridge, in my projects I aways use one bridge. Now if you have 2 independent power supplys for each channel (double trafo, bridge and filter caps) it is another history, will result a great improvement on sound, because there will not have intermodulation distortion between the 2 channels.