If it is needed the +3 can be connected to an amplifier using the TAPE/SOUND socket. This is a 3.5mm jack socket producing 200mV pk-pk at approximately 5 Kohms impedance. When using an amplifier, it is worth remembering that if you have connected a cassette unit to the +3, the tape 'load' and 'save' signals are also fed to the TAPE/SOUND socket (and therefore the amplifier's volume control should be turned down when performing these operations).
Input
(not used)
|
| ___
___ _ v | --_
(not used) \/ | | _ _____| -.___________
| | ()[_[_____| |___________
Audio output _/\ |_| ^ | | _-'
| | | |___--
GND (common) _______| | |
Audio GND
output (common)
TAPE/SOUND socket