MOTM

I found some washers that look pretty nice.  They are just zinc plated 
but not much of the washer really shows.

They are 0.470 ID x 0.656 OD x 0.030 thick

They are just slightly larger than the 112A switchcraft washers.
0.460~0.465 ID would be about the smallest you can get on these jacks 
so the 0.470 fit reasonably snug.

I don't know where they came from originally but I can try and find 
out.  I put a photo up in the photo section.  You can see some slight 
scratches caused by the larger washers.  They're pretty minimal unless 
you get the light just right.

Dave Brown


--- In motm@yahoogroups.com, Richard Brewster <pugix@...> wrote:
>
> As Paul mentioned in his update, these are larger than the 
Switchcraft 
> washers used on other MOTM modules.  The jacks are larger in 
diameter, 
> too, and take a different nut size.  A slightly smaller washer, 
ideally 
> the same outer diameter as the regular washers with an inner 
diameter 
> big enough to fit the jacks, would improve the appearance of the 
650.  
> The washer sizes are:
> 
> Switchcraft:  O.D. 5/8 inch (about 16mm), I.D. 3/8 inch (about 9.5 
mm)
> 650 washer:  O.D. 18mm, I.D. 12 mm
> 
> The ideal washer would be O.D. 16 mm and I.D. 10 - 12 mm (12 is 
larger 
> than necessary).  I am not sure what's the minimum to fit the jack, 
but 
> it's larger than 3/8 inch.  Paul, what hole size is drilled for 
these 
> jacks?   If anyone finds such a washer obtainable in the U.S. in 100 
> quantity I would be interested.  (I imagine that Paul applied due 
> diligence here, but who knows what we all might find.)
> 
> Richard Brewster
> http://www.pugix.com
>