Can I convert stereo to mono for a phono input


My preamp doesn't have a switch to convert stereo to mono.  I would like to switch a stereo signal to mono to set my cartridge azimuth (when using two channels out of phase, this method allows accurate balancing of the channels).  Is there a way to build a simple converter: two RCA female plugs taking a stereo signal and mixing it to mono, output as two RCA male plugs (mono signal)?


I have a test LP that provides a stereo track (test signal) with the two sides out of phase.  All I would need to do is feed that through the mono converter to set my azimuth. 

Thanks for any advice.  Peter

peter_s

Showing 2 responses by fleib

Azimuth adjustment on a test record like Analogue Productions, provides a test tone for each channel individually. No need to build or buy anything other than the right record.

Why do things the easy way when you can do them the hard way and risk your equipment at the same time?

**Azimuth Adjustment

Track 2 - 1KHz reference level, left channel only                            Measure right channel output

Track 3 - 1KHz reference level, right channel only                            Measure left channel output **

Analogue Productions Test LP (about $40)