- on Audio/Video/Photography
- Published in issue 7/2010 on page 84
No-CA3080 Guitar Compressor
(Summer Circuits 2010 article)
The TDA7052A is a readily available amplifier chip (Farnell # 526198) that has a DC controlled volume input. Here, the IC is used as the variable gain amplifier in a guitar compressor, so the effect can be accomplished without the hard to obtain CA3080 operational transconductance amplifier (OTA). Note that the suffix-less TDA7052 does not have DC volume control.