Saturday, November 16, 2019

Built an amp using the TUN design to see how it performed.

A piece of formica counter top and some copper tape can be used as the circuit board.

The back of the board will take glue better but the circuit shows better with the white background.

It is just a matter of leaving a little space between the strips.

Use an exacto knife to cut pads for the components to tie to. The two bigger strips are the power connections.

The white back ground helps you see the desired results.

It's just a matter of matching the pads and power connections as displayed in the diagram.

Here I used a piece of wood. I coated the wood with some glue befofe mounting the copper tape.

This is the amp with all the parts mounted. I used surface mount parts except for the transistors. You can use wired components if you like.

I connected power and set the input to produce 1 volt on the output. The input was about 40 mv.

The sim shows the schematic and the expected results. The circuit produced a little higher output than the sim predicted.

If I can do it anyone can.

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