[sdiy] akai encoder

[Heitor Alves]

i've found in the mouser catalog
(http://www.mouser.com/catalog/621/1602.pdf) the encoders, but i didnt
check for the measures of pin's.
check it and good luck! :o)

heitor

On Apr 10, 2005 11:26 PM, mark verbos <mverbos at earthlink.net> wrote:
> But the one in question here has  a 5 mm between the pins, 10mm accross all
> three. That seems to be double the standard size. Meaning only the Alpha
> ENC160 will fit... no? I would hate to have to build a new switch board to
> hold a better encoder, but I will ;) It is a single sided board, smaller
> than a eurocard.
> 
> Mark
> 
> 
> 
> 
> Byron G. Jacquot wrote:
> 
> I have an Akai S5000 with an encoder problem. When I turn it to the
right,
> sometimes everything is fine, sometimes the value goes down. I
took out the
> 21 screws and touched up the solder, but that didn't
help. I'm thinking I'll
> replace this thing, am I right to assume this
is the Alpha brand encoder
> (318-ENC160-24P) in the Mouser catalog?

anyone ever have this problem?
 
> I've seen this problem a few times, in several different.

It's usually due
> to a defect in the encoder design. If the encoder 
output transistions and
> the mechanical detents all happen at the same 
point, then as the detent
> mechanism wears out, it's messes up the 
transitions on the output. I think
> the detents were becoming 
slightly wider, making it so that the tactile
> "click" of the encoder 
didn't relate the the output edges. 

It reaches a
> point that whichever direction it's turned, the output 
value only seems to
> go one direction...like a ratcheting mechanism.

I saw this happen to some
> cheap-o encoders in a matter of weeks.

The solution was to replace the
> cheap encoders with more expensive 
ones, where the detents are halfway in
> between the output state 
changes. I think we wound up using Alps
> encoders.

Byron Jacquot

 
>