Computer speaker potentiometer help !

[carl lawrence]

Many years ago I made a arcade cabinet out of my desks top computer

Which you can see in the back left corner of games room 1 .The computer was a Fujitsu semens .The speaker switch on off volume is faulty , I have taken a picture of the pot
The pot has B50k stamped on it but I am struggling trying to find a replacement . Does anyone know where I can find a replacement ? Or does anyone have a set of these speakers which I used hiding away somewhere !
Many thanks
Carl

 

[JT.]

Is it definitely the pot which is the issue, and not deterioration of one of those capacitors on the board? If it's defo the pot, you could try spraying it with contact cleaner before trying to replace, in case it's just grimy?

 

[carl lawrence]

Unfortunately it is the pot , it was a bit dodgy back then . It still works but by just a slightest touch your get a random volume etc

 

[kev a]

If you can't find another pot, could just replace the amp section with something cheap and cheerful like this....

LM386 10W Audio Power Amplifier Board Mono DC 3-12V Mini AMP Module | eBay

Model: LM386. The smallest mini amplifier board. Can drag 0.5W-10W speaker DC3-12V audio amplifier. Mini amplifier board 1. Audio input: 3.5MM. Beautiful appearance, easy to use. Output power: 0.5-12W.

www.ebay.co.uk

 

[Mozie]

It's just a standard 50k pot ..just nab one off amazon

 

[carl lawrence]

If you can't find another pot, could just replace the amp section with something cheap and cheerful like this....

LM386 10W Audio Power Amplifier Board Mono DC 3-12V Mini AMP Module | eBay

Model: LM386. The smallest mini amplifier board. Can drag 0.5W-10W speaker DC3-12V audio amplifier. Mini amplifier board 1. Audio input: 3.5MM. Beautiful appearance, easy to use. Output power: 0.5-12W.

www.ebay.co.uk

This is going to be my last resort !

Is it definitely the pot which is the issue, and not deterioration of one of those capacitors on the board? If it's defo the pot, you could try spraying it with contact cleaner before trying to replace, in case it's just grimy?

have just sprayed it and it has dramatically improved it !! Wil check again after it has dried up to see if it stays improved !

It's just a standard 50k pot ..just nab one off amazon

just ordered this on eBay https://www.ebay.co.uk/itm/39571704...cjEA5ZnQ-u&var=&widget_ver=artemis&media=COPY
Had to put in 8pin b50k and a few came up
Thanks for everyone’s help !!

 

[Pick Holder]

It is a dual pot. Has a B suffix which means it is a LINEAR pot.

The 6 legs are for audio and the two other legs is a power switch. You could of just put in a jumper.

The one you have ordered has the switch at the back, the existing one has the switch on the front.

 

[carl lawrence]

It is a dual pot. Has a B suffix which means it is a LINEAR pot.

The 6 legs are for audio and the two other legs is a power switch. You could of just put in a jumper.

The one you have ordered has the switch at the back, the existing one has the switch on the front.

Phil thanks for your help , how can you tell the difference so I can order the correct one mate ,is it this one ? https://www.ebay.co.uk/itm/38285134...cjEA5ZnQ-u&var=&widget_ver=artemis&media=COPY