Magnavox Astro Sonic pot trouble

[6nylonvinyl]

Hey all,
It's my first post. Hoping somebody might point me in the right direction. Basically I've a volume pot that's gone bad on my Magnavox Astro Sonic (chassis # R23104 DA). And, I need a replacement.

The conductive material has worn off of the left channel's wiper. As a result I get very little volume until it's turned up all the way up. It's a dual gang 100k audio taper with uh?.... 10-pins!?! Why? I don't get it... And, I can't find anything like this on the net. I've searched the usual places. No dice.

Anyone know: 1) Where parts be for this dinosaur and 2) What is the deal with the four extra pins on the pot? 3) Can I use a normal six pin pot (given all other specs the same: 100k, audio taper etc.)?

Schematic on order, btw. Here's a few pics>>

Thanks,
Todd

 

[quiet]

Looks similar to what was used in the Magnavox 500, 1000 and 1500 receivers. 1970 to 1975.

 

[century tek]

I'm sending you one! Just let us know when you get it up and running!

 

[century tek]

Since he is new, not sure he knows that it would be good to follow up and not leave us hanging so I am posting the final results. This is 6nylonvinyl taken from our private conversations:

Pot came early! Received it yesterday. Thank you so much! Installed it and it works! Finally both channels are functioning... Here's some pics....

 

[audiojones]

To answer the OP’s question regarding the extra pins, the upper connections on each section (4 total) are probably for a loudness contour eq circuit. As the volume level is increased they want to limit the bass frequency boost. Good on ya century tek for helping a brother out!

 

[Doug G.]

Agree. Very generous, century tek!

Doug

 

[century tek]

I was beginning to wonder if it was worth keeping all those parts I hoard...er...collected and gutted out years ago.

 

[6nylonvinyl]

Thanks again so much, Century Tek!