Tba820m | Electronic Project Circuits

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Telephone Amplifier by LF351+TBA820M

circuit Telephone Amplifier by LF351+TBA820M
If phone your light exceedingly ring. Invite come to this way. I thinks this circuit can help. It is Telephone Amplifier circuit. By have pillar equipment be IC LF351 perform enlarge telephone signal from pick up give the power goes up. Before transmit to IC TBA820M for amplify with a loudspeaker next sir. And VR1 perform fine the loud sound or the silent
is extremely fond of something. See circuit detail enhances in a picture.

Be the first to comment - What do you think? Posted by admin - May 8, 2007 at 8:19 am

Categories: Power Amplifier, Telephone Tags: LF351, tba820m, Telephone amplifier

Power Amplifier Mini 2W+2W by TBA820M

This circuit TDA820M Mini Amplifier 2W+2W.
Supply Volt 12V, Easy to build and Low cost.
If you want mini amplifier circuit , as a result do not be defeated certainly. The sound will a little 2W+2W just but enough with 6 sizes are inch 8ohm loudspeakers. as a result still have a voice good loud the moderately. Request friends have fun the circuit amplifies this miniature please yes.