[sdiy] c&k on-on-on switches

[Gene Stopp]

based on the fine explanation below, you can make this into a sp3t switch by
adding a jumper between 3 and 5. Then 2 becomes your common and you get the
following three poles:

Position 1 = 2 connects to 6
Position 2 = 2 connects to 4
Position 3 = 2 connects to 1



- Gene



-----Original Message-----
From: owner-synth-diy at dropmix.xs4all.nl
[mailto:owner-synth-diy at dropmix.xs4all.nl]On Behalf Of Tim Parkhurst
Sent: Thursday, October 14, 2004 3:40 PM
To: 'gregory zifcak'; synth-diy at dropmix.xs4all.nl
Subject: RE: [sdiy] c&k on-on-on switches


Okay, those were the 7211 switches, right? If so, then look at the data
sheet in the link again. On page two, it shows the interconnect sequence and
pin numbers for the 7211 switch. The pins (looking from the bottom) are:


6     3

5     2

4     1


And the sequence is: 

Position 1 = 2 connect to 3, 5 connect to 6

Position 2 = 2 connect to 3, 5 connect to 4

Position 3 = 2 connect to 1, 5 connect to 4

Check the data sheet again, and you'll see the drawings showing the pin
numbers the switch positions. Note that only one of the two sets of poles
changes with each new switch position. I was kind of hoping for a more
straightforward 1 to 4, 2 to 5, 3 to 6 sort of sequence, but I suppose these
will still be useful.


Tim (ordered a few of those buggers myself) Servo

"Imagination is more important than knowledge." - Albert Einstein

**********************************************


> -----Original Message-----
> From: gregory zifcak [mailto:zifcak at hotmail.com]
> Sent: Thursday, October 14, 2004 3:00 PM
> To: synth-diy at dropmix.xs4all.nl
> Subject: [sdiy] c&k on-on-on switches
> 
> so,
> 
> i got my on-on-on switches from goldmine today, does anyone know which
pins
> are which? i'm used to standard on-off-on dpdt switches. if these are
> similar, which are the two contacts for the center on position? if it's
dpdt
> and on-on-on, wouldn't it need 2 poles + 3 more pairs of throws? i found
> this, but it didn't seem to help:
> 
> http://www.ittcannon.com/media/pdf/catalogs/Leaf/SW_toggle_7000.pdf
> 
> thanks for any clues,
> greg
> 
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