countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6
countertext: Conn ST-6 schematic