can any stereo receiver be turned to mono?


can any stereo receiver be turned to mono? I have a technics sa-gx100, and i cannot figure out how to put it in mono mode.
leemurray2007
Some stereo amps allow you to bridge for mono operation, I don't believe yours is one of them. 
What audio source are you playing? If it is an external component such as a CD player, you can convert the input signal to mono using a pair of Y cable connectors.
If what you want is a stereo/mono switch to summing the stereo signal to mono, insert this circuit to tape-monitor loop, the tape-monitor button will become a stereo/mono switch.
https://www.vinylengine.com/turntable_forum/download/file.php?id=11690&t=1

Or use a stereo to mono converter box.
https://www.amazon.com/OSD-Audio-SMC21-Converter-Isolator/dp/B07FFBJ8KR/ref=pd_lpo_328_img_1/136-081...