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Audio amplifier with LM1458

2015-01-01 17:30  
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Audio amplifier with LM1458

The Audio amplifier with LM1458 circuit comes from DL7JR and is very good for CW.

The 1 M Ohm resistors can be replaced by two identical values over 47K.

The 180 pF capacitors can be replaced by units to 680pF.

Construction suggestion

Used 18 x 18 mm printed circuit board (it can be bigger), some parts are mounted over the IC.

Begin by the jumpers, mount the parts over the IC body afterwards, I usually mount them after the jumpers from the input to the output.