Blast City voltage pot

imbord3rlin3 · May 4, 2022

can anyone tell me what value a replacement 5v pot for my blast city power supply is? looking to replace mine and i dont know which to get.

tiff_lee · May 8, 2022

The original trimmer pot is made by "Tocos", the markings on the back (of mine at least) are "102 6X 82", the 102 corresponds to a 1k pot. The pin spacing is 2.5mm by 2.5mm with the single pin at the front.

Look here for example:

https://tocos.com/uploads/media/products/0001/01/1da0d8e992e1a977fb495fcf26612bf916a3a9cf.pdf
See the difference between GF063S & GF063X, one has the centre pin towards the front, the other behind.

imbord3rlin3 · May 8, 2022

thank u very much!

tiff_lee · May 8, 2022

Just to clarify the ones in that catalog appear to be newer models but you could get a trim pot from anywhere as long as it's:-

side adjustment
1k
through hole
pin spacing 2.5mm*2.5mm and centre pin at the front

imbord3rlin3 · May 8, 2022

tiff_lee said:
Just to clarify the ones in that catalog appear to be newer models but you could get a trim pot from anywhere as lots as its:-

side adjustment

1k

through hole

pin spacing 2.5mm*2.5mm and centre pin at the front

thats the plan! the pins r bent back and gettign soft so it needs fixing . im gonna look on arcade parts and repair. i gotta get a few things from there anyway.

imbord3rlin3 · May 12, 2022

Quick update on the pots. Got some in the mail from digikey and these 2 seem to be a good replacement . I read the value of the 1 good original pot I have and it measured 861 ohms. So, 1k will definitely work. Both the 3.3v and 5v pot are the same part so it seems I'm good to go. Gonna hold off on swapping them for a couple days till my psu and sound Amp recap kits come in and bang it all out at once. For those interested, I included the part numbers for the model 3 pots in the photo.