Hi,
I’ve got a failed potentiometer in the plate amp of my subwoofer. It is a Sunfire True Subwoofer “Signature” by Bob Carver. The volume pot has been iffy and I hit it with Deoxit a few times but it only temporarily fixed. I went to tighten it to the chassis as it is a grounding point and part of it broke (black plastic bits from the back). Now it doesn’t work at all. I can easily solider one in if I can identify a replacement. It uses a “D” flatted connecting rod for the knob. I’m not sure how many ohms it is rated at.
A little tricky to see but the board is labeled “WP-10” under where it is mounted.
Thanks!
Andy
I’ve got a failed potentiometer in the plate amp of my subwoofer. It is a Sunfire True Subwoofer “Signature” by Bob Carver. The volume pot has been iffy and I hit it with Deoxit a few times but it only temporarily fixed. I went to tighten it to the chassis as it is a grounding point and part of it broke (black plastic bits from the back). Now it doesn’t work at all. I can easily solider one in if I can identify a replacement. It uses a “D” flatted connecting rod for the knob. I’m not sure how many ohms it is rated at.
A little tricky to see but the board is labeled “WP-10” under where it is mounted.
Thanks!
Andy
Attachments
It appears that that pot, and the one next to it, is a cheap transistor radio type of pot.
What does it measure across it's 2 outer terminals, that would give you an idea of ohms, and likely a linear taper.
You may have to remove it to see any writing on the face of it. (10K?)
If that's a Bob Carver unit, it's built with crap parts like that pot is.
What does it measure across it's 2 outer terminals, that would give you an idea of ohms, and likely a linear taper.
You may have to remove it to see any writing on the face of it. (10K?)
If that's a Bob Carver unit, it's built with crap parts like that pot is.
Thanks. I agree, the amplifier has failed before due to cheep caps and I had it rebuilt. I found a schematic that I was told a long time ago is for this plate amp as it was licensed to NHT for a sub as well. On the PCB it is labeled RP-1 and on this schematic RP1 is 100K. Since it is dead, I will pull it out to see if there is more info on the face of it.
After looking at that schematic, I'd crap-can that stupid thing...... pronto!
It looks rediculous, and I'd never design such a foolish product.
Waste of time playing with that garbage.
It looks rediculous, and I'd never design such a foolish product.
Waste of time playing with that garbage.