These are NOS parts from the late 90's, Made in Japan. Dual 50K Ohm (50K Ohm BX2) as original with loudness tap. The solder terminals are different than the original, but are not a problem to install in the Marantz receiver.
Note: These NOS parts originally had a 20MM shaft length, this is too short for the Marantz receiver. Therefore, I modified the shaft to 30MM to properly fit this Marantz Integrated Amplifier.
The loudness tap is center located at 25K Ohm, I have installed these Modified NOS pots into several Marantz receivers, they worked perfectly.
I guarantee these to work as described or money back.
I am a Marantz collector/restorer and I have installed these Modified NOS pots into several Marantz receivers, they worked perfectly.
I can also fix most broken or bent shafts using this modification process. Let me know if want a potentiometer repaired.