DIY M50 capsule

[k brown]

Was gonna try it myself but all my plumbing mesh discs have this weird residue build up on them... (kidding, kidding)

. . . for vintage tone

 

[k brown]

I just discovered that the backplate holes don't need to be sealed with epoxy, or other, to convert to omni.

Once the center terminal is unscrewed and the rear backplate and main backplate are separated, just remove the small washer/spacer, then put the two backplates together such that their holes don't line up; there is one position where none of the rear plate's holes will align with those in the main plate.

Thus, the holes in the rear backlate don't need to be glued shut, and if the washer is retained, the capsule can be harmlessly returned to cardioid, if so desired.

I have to amend this post to say that I seem to have discovered that all that needs doing to convert these capsules to omni is to remove a thin clear plastic washer from between the two backplates.

There are two washers in there (in my examples, at least) - a metal one and a clear plastic one; it seems that removing both of them does make it omni, but also results in an unpleasant boost at the top. Removing just the clear plastic one is enough to 'omni' it, but has a much better tonal balance.

Have two more arriving soon so I can verify this with 'unmolested' capsules just to make sure I'm interpreting this correctly. Seems quite surprising that only that thin spacer makes the difference between cardioid and omni, and appears to have nothing to do with how the holes in the two plates are aligned; the unaltered CM-63 capsules also have their plates aligned so that all the holes are 'blocked' (which, of course they're not because of the washers/spacers).