Alda fit question: 617 versus 603
 

I have a 603. Question is if the 617 Alda will fit for the 603 and vice versa?
Well the real question is- I am intending to manufacture caps for closing the 'hole' in the Alda after removal. Does the cap fit both 'holes' for 603 and 617?
Martin

I understand the difference is the 617 has a screw on top, the 603 doesn't, but inside they're twins. So to completely remove and block it off, should be the same size cap.

They're interchangeable...and both have screws

Long time no see Martin! I still have one of your proto caps on my SDL, works fantastic! :)

....so that means that the caps are interchangeable too....?

Hey I am still alive and my SDL up and runnning better than ever with 330K... if people are interested I can think about machining a new series of caps for the capless people out there.

Always good to hear, Martin. I believe there is a market for them, I will have see if I can find a picture of mine installed. It is a very nice piece once installed. :)



And yes, both have a set screw atop. I had mine maxed out on the 603 prior to simply removing the thing. Same with my 617.

ALDA cap
 

A photo would be very helpful to those of us who are less mechanical. Thanks

why would you want to remove your alda and cap the hole? what's the benefit you get from that?

I've had them side by side, twins....

Jim

I'm interested in one
 

how do you want us to reach out to you?

didja make one?

:D Good find, Martin is the gentleman that cut it for me. I can grab a picture of it installed if you would like.

that'd be cool, thanks!

They may look the same, but is the calibration the same?