XC Phase Trim Pot question

[Jimmyjams]

Building my Xc phase right now and I have the 250K bias trimpot but it only has 3pins. The spot on the board appears to have 5? Do I need to get a different trim pot?

 

[Jimmyjams]

Also for Q5 it lists a 2N4125 NPN but to my knowledge and the one I have it’s a PNP? Should I find a different transistor in NPN or the 2N4125 is fine?

 

[blackhatboojum]

Building my Xc phase right now and I have the 250K bias trimpot but it only has 3pins. The spot on the board appears to have 5? Do I need to get a different trim pot?

The 5 holes are there to accept different style trimmers. 501 or Bourns 3362 will work in that spot.

Also for Q5 it lists a 2N4125 NPN but to my knowledge and the one I have it’s a PNP? Should I find a different transistor in NPN or the 2N4125 is fine?

The 2n4125 is a PNP. That’s what I used in my xc phase and it works just fine. Just about any generic pnp with the same pin out would probably work there. Does the build doc spec NPN? It’s been quite awhile since I looked at it.

 

[Jimmyjams]

Build doc specs NPN. I saw another thread where someone asked the same question and seemed like they ended up using the 2n4125 but wasn’t clear.

 

[andare]

Build doc specs NPN. I saw another thread where someone asked the same question and seemed like they ended up using the 2n4125 but wasn’t clear.

The build docs specs PNP