Print Page - Source for horizontal mount Alpha 9mm pots?

Title: Source for horizontal mount Alpha 9mm pots?
Post by: Ben N on January 27, 2024, 11:31:23 PM

Like for this MB Egghead pcb (1590A) I have sitting around. I can't find them (at least not in the values I need) at Tayda, Smallbear or Mouser.

I suppose I can just eschew the adorable little daughter pcb that requires them and try to adapt the more common vertical mount pots to the space, but I just wanted to check if someone has a source for them first - space looks to be tight, after all.

TIA

Title: Re: Source for horizontal mount Alpha 9mm pots?
Post by: madbean on January 28, 2024, 12:50:25 AM

smallbear has the 500kA and 1MA. For the 25bB, you can use a 50kB then solder a 47k resistor across lugs 3 and 2.

Stompboxparts has some values, but most are out of stock. Not sure about other sources.

Title: Re: Source for horizontal mount Alpha 9mm pots?
Post by: Ben N on January 28, 2024, 11:07:35 AM

Thanks, Brian. I take it an 1/8W would be fine for the 47kR, and the change in taper is not a problem.

Title: Re: Source for horizontal mount Alpha 9mm pots?
Post by: madbean on January 28, 2024, 03:22:07 PM

A 1/8 W 47k is fine. It actually will not change the taper in this case since it is only being used as a variable resistance to ground and not as a voltage divider.

Title: Re: Source for horizontal mount Alpha 9mm pots?
Post by: pedalbob on February 01, 2024, 03:47:24 PM

Hi-

I just looked and it appears that Amplified Parts has the values you need (25kB too).

Title: Re: Source for horizontal mount Alpha 9mm pots?
Post by: Ben N on February 04, 2024, 07:14:55 PM

Thanks, Bob. I'm going to try Brian's suggestion first (already ordered), but it's good to know.

madbeanpedals::forum

Projects => General Questions => Topic started by: Ben N on January 27, 2024, 11:31:23 PM