5 Nov
2016
5 Nov
'16
3:16 a.m.
Hi,
Does anyone have any available? I don't need the paddles, just the
the ON-OFF-ON momentary switches.
I got good ON-OFF address/data ones from Herb Johnson, but the momentary
ON-OFF-ON ones I have are worn out and do not return to center properly.
Mark
--
Mark G. Thomas (Mark at Misty.com), KC3DRE
6:17 a.m.
Am I correct that the Altair 8800(A/B) also uses those type of switch?
If so, I need one or two as well.. my own, lone 8800 isn't quite what it
could be, IIRC. Had to sub switches.
On Fri, Nov 4, 2016 at 10:50 PM, Eric Smith <spacewar at gmail.com> wrote:
On Fri, Nov 4, 2016 at 9:16 PM, Mark G Thomas <Mark
at misty.com> wrote:
Does anyone have any available? I don't need
the paddles, just the
the ON-OFF-ON momentary switches.
Just FYI, technically those are known as MOM-OFF-MOM.
3:41 p.m.
On 11/04/2016 11:17 PM, drlegendre . wrote:
Am I correct that the Altair 8800(A/B) also uses those
type of
switch?
If so, I need one or two as well.. my own, lone 8800 isn't quite what
it could be, IIRC. Had to sub switches.
Not exactly--momentary, yes, but clearly not the paddle switches used on
the IMSAI. Fortunately, PCB-mount toggle switches are quite a bit
easier to locate.
I'd probably start here:
http://www.ckswitches.com/product-selection/toggle/
if I were looking for a replacement.
--Chuck
6 Nov
6 Nov
12:10 a.m.
On Sun, Nov 6, 2016 at 4:41 AM, Chuck Guzis <cclist at sydex.com> wrote:
On 11/04/2016 11:17 PM, drlegendre . wrote:
I need those too - some of my Altair switches have the handles
physically broken... in fact pretty much ALL the large switches (the
bottom row for run/deposit/exam/reset etc.) are ropey in one way or
another and need replacing (the smaller data/address switches are
fine). If anyone tracks down the correct type of switch please post a
link here! Or if you have any for sale shoot me an email.
Thanks
Mike
http://www.corestore.org
'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'
Am I correct that the Altair 8800(A/B) also uses
those type of
switch?
If so, I need one or two as well.. my own, lone 8800 isn't quite what
it could be, IIRC. Had to sub switches.
Not exactly--momentary, yes, but clearly not the paddle switches used on
the IMSAI. Fortunately, PCB-mount toggle switches are quite a bit
easier to locate.
I'd probably start here:
http://www.ckswitches.com/product-selection/toggle/
if I were looking for a replacement.
--Chuck
1:45 a.m.
On 11/05/2016 05:10 PM, Mike Ross wrote:
I need those too - some of my Altair switches have the
handles
physically broken... in fact pretty much ALL the large switches (the
bottom row for run/deposit/exam/reset etc.) are ropey in one way or
another and need replacing (the smaller data/address switches are
fine). If anyone tracks down the correct type of switch please post
a link here! Or if you have any for sale shoot me an email.
The site I linked to from C&K is a good example of how a manufacturer's
web site should be--parameterized search with vendor stock check. So,
for example, the momentary on-off-on 20V PC mount unthreaded with 10.67
mm handle would be 7105SY9V3BE--and Arrow has about 150 in stock.
Beats spending time on the phone talking to "inside sales".
--Chuck
1:56 a.m.
"Not exactly--momentary, yes, but clearly not the paddle switches used on
the IMSAI. Fortunately, PCB-mount toggle switches are quite a bit
easier to locate."
Right, I thought about that once I'd posted.
My 8800A (with B supplies) still has the basic mini bat-handle style
switches. Correct me on this, but the later Altair 8800B use the
paddle-style handle, same as the IMSAI?
On Sat, Nov 5, 2016 at 8:45 PM, Chuck Guzis <cclist at sydex.com> wrote:
On 11/05/2016 05:10 PM, Mike Ross wrote:
I need those too - some of my Altair switches
have the handles
physically broken... in fact pretty much ALL the large switches (the
bottom row for run/deposit/exam/reset etc.) are ropey in one way or
another and need replacing (the smaller data/address switches are
fine). If anyone tracks down the correct type of switch please post
a link here! Or if you have any for sale shoot me an email.
The site I linked to from C&K is a good example of how a manufacturer's
web site should be--parameterized search with vendor stock check. So,
for example, the momentary on-off-on 20V PC mount unthreaded with 10.67
mm handle would be 7105SY9V3BE--and Arrow has about 150 in stock.
Beats spending time on the phone talking to "inside sales".
--Chuck
2:01 a.m.
The "B" model used a flatted bat handle toggle switch which IIRC weren't
made by C&K. I think I may have the number somewhere but I think there was a thread
with this info a few years ago. A Google search might produce it. The Altair group archive
on Yahoo might have it too.
The IMSAI uses a plastic paddle switch.
Rich
Sent from my iPhone
On Nov 5, 2016, at 9:56 PM, drlegendre .
<drlegendre at gmail.com> wrote:
"Not exactly--momentary, yes, but clearly not the paddle switches used on
the IMSAI. Fortunately, PCB-mount toggle switches are quite a bit
easier to locate."
Right, I thought about that once I'd posted.
My 8800A (with B supplies) still has the basic mini bat-handle style
switches. Correct me on this, but the later Altair 8800B use the
paddle-style handle, same as the IMSAI?
> On Sat, Nov 5, 2016 at 8:45 PM, Chuck Guzis <cclist at sydex.com> wrote:
>
>> On 11/05/2016 05:10 PM, Mike Ross wrote:
>>
>> I need those too - some of my Altair switches have the handles
>> physically broken... in fact pretty much ALL the large switches (the
>> bottom row for run/deposit/exam/reset etc.) are ropey in one way or
>> another and need replacing (the smaller data/address switches are
>> fine). If anyone tracks down the correct type of switch please post
>> a link here! Or if you have any for sale shoot me an email.
>
>
> The site I linked to from C&K is a good example of how a manufacturer's
> web site should be--parameterized search with vendor stock check. So,
> for example, the momentary on-off-on 20V PC mount unthreaded with 10.67
> mm handle would be 7105SY9V3BE--and Arrow has about 150 in stock.
>
> Beats spending time on the phone talking to "inside sales".
>
> --Chuck
>
2:25 a.m.
Oh duh for me! Confusion reigns supreme.
Yes.. the IMSAI uses those really wide plastic paddle switches.. that I had
always assumed were a +Carling+ part, as Carling has a line of switches
with similar handles.
Altair 8800A and B both use the metal mini-toggles - the former, bat-handle
the latter, the narrow metal paddle-handle.
On Sat, Nov 5, 2016 at 9:01 PM, Richard Cini <rich.cini at verizon.net> wrote:
The "B" model used a flatted bat handle
toggle switch which IIRC weren't
made by C&K. I think I may have the number somewhere but I think there was
a thread with this info a few years ago. A Google search might produce it.
The Altair group archive on Yahoo might have it too.
The IMSAI uses a plastic paddle switch.
Rich
Sent from my iPhone
On Nov 5, 2016, at 9:56 PM, drlegendre .
<drlegendre at gmail.com> wrote:
"Not exactly--momentary, yes, but clearly not the paddle switches used on
the IMSAI. Fortunately, PCB-mount toggle switches are quite a bit
easier to locate."
Right, I thought about that once I'd posted.
My 8800A (with B supplies) still has the basic mini bat-handle style
switches. Correct me on this, but the later Altair 8800B use the
paddle-style handle, same as the IMSAI?
> On Sat, Nov 5, 2016 at 8:45 PM, Chuck Guzis <cclist at sydex.com> wrote:
>
>> On 11/05/2016 05:10 PM, Mike Ross wrote:
>>
>> I need those too - some of my Altair switches have the handles
>> physically broken... in fact pretty much ALL the large switches (the
>> bottom row for run/deposit/exam/reset etc.) are ropey in one way or
>> another and need replacing (the smaller data/address switches are
>> fine). If anyone tracks down the correct type of switch please post
>> a link here! Or if you have any for sale shoot me an email.
>
>
> The site I linked to from C&K is a good example of how a manufacturer's
> web site should be--parameterized search with vendor stock check. So,
> for example, the momentary on-off-on 20V PC mount unthreaded with 10.67
> mm handle would be 7105SY9V3BE--and Arrow has about 150 in stock.
>
> Beats spending time on the phone talking to "inside sales".
>
> --Chuck
>
2:37 a.m.
As far as I know, the original Altair 8800 uses the normal full bat handle
switches. The Altair 8800a and 8800b use flat bat handled switches as
shown on mine here:
http://vintagecomputer.ca/wp-content/uploads/2015/02/MITS-Tower.jpg
I had to find some of the flat bat handled switches and the authentic ones
are almost impossible to find. I happened to find a person who worked at
MITS that had some spares.
On Sat, Nov 5, 2016 at 10:25 PM, drlegendre . <drlegendre at gmail.com> wrote:
Oh duh for me! Confusion reigns supreme.
Yes.. the IMSAI uses those really wide plastic paddle switches.. that I had
always assumed were a +Carling+ part, as Carling has a line of switches
with similar handles.
Altair 8800A and B both use the metal mini-toggles - the former, bat-handle
the latter, the narrow metal paddle-handle.
On Sat, Nov 5, 2016 at 9:01 PM, Richard Cini <rich.cini at verizon.net>
wrote:
The "B" model used a flatted bat handle
toggle switch which IIRC weren't
made by C&K. I think I may have the number somewhere but I think there
was
a thread with this info a few years ago. A Google
search might produce
it.
The Altair group archive on Yahoo might have it
too.
The IMSAI uses a plastic paddle switch.
Rich
Sent from my iPhone
> On Nov 5, 2016, at 9:56 PM, drlegendre . <drlegendre at gmail.com> wrote:
>
> "Not exactly--momentary, yes, but clearly not the paddle switches used
on
> the IMSAI. Fortunately, PCB-mount toggle
switches are quite a bit
> easier to locate."
>
> Right, I thought about that once I'd posted.
>
> My 8800A (with B supplies) still has the basic mini bat-handle style
> switches. Correct me on this, but the later Altair 8800B use the
> paddle-style handle, same as the IMSAI?
>
>> On Sat, Nov 5, 2016 at 8:45 PM, Chuck Guzis <cclist at sydex.com> wrote:
>>
>>> On 11/05/2016 05:10 PM, Mike Ross wrote:
>>>
>>> I need those too - some of my Altair switches have the handles
>>> physically broken... in fact pretty much ALL the large switches (the
>>> bottom row for run/deposit/exam/reset etc.) are ropey in one way or
>>> another and need replacing (the smaller data/address switches are
>>> fine). If anyone tracks down the correct type of switch please post
>>> a link here! Or if you have any for sale shoot me an email.
>>
>>
>> The site I linked to from C&K is a good example of how a
manufacturer's
>> web site should be--parameterized search
with vendor stock check. So,
>> for example, the momentary on-off-on 20V PC mount unthreaded with
10.67
> mm
handle would be 7105SY9V3BE--and Arrow has about 150 in stock.
>
> Beats spending time on the phone talking to "inside sales".
>
> --Chuck
>
2:11 a.m.
On Sun, Nov 6, 2016 at 2:45 PM, Chuck Guzis <cclist at sydex.com> wrote:
On 11/05/2016 05:10 PM, Mike Ross wrote:
So you reckon those 7105SY9V3BE would suit the Altair? OK I'll go shopping.
I've had a wee Google for Altair pics and mine seems to be an oddball.
Most of the pics I've seen have all the switches the small type with
rounded 'baseball bat' ends. A couple had all the switches the larger
type with rectangular 'cricket bat' ends. Mine is the only one I've
ever seen with a mixture; small switches for address and data - large
for the control switches. See:
https://pbs.twimg.com/media/Cwi1aInUsAAW5Zn.jpg
Anyone seen another like this?
Cheers
Mike
http://www.corestore.org
'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'
I need those too - some of my Altair switches
have the handles
physically broken... in fact pretty much ALL the large switches (the
bottom row for run/deposit/exam/reset etc.) are ropey in one way or
another and need replacing (the smaller data/address switches are
fine). If anyone tracks down the correct type of switch please post
a link here! Or if you have any for sale shoot me an email.
The site I linked to from C&K is a good example of how a manufacturer's
web site should be--parameterized search with vendor stock check. So,
for example, the momentary on-off-on 20V PC mount unthreaded with 10.67
mm handle would be 7105SY9V3BE--and Arrow has about 150 in stock. 
2:45 a.m.
On 11/05/2016 07:11 PM, Mike Ross wrote:
So you reckon those 7105SY9V3BE would suit the Altair?
OK I'll go
shopping.
That's just an estimate from memory. I'd have to dig my 8800 out, dust
it off and make measurements.
Note that the part I linked to is center-off-momentary SPDT. Clearly,
not all of the switches on the Altair are like that.
There are, of course, lots of other switch vendors, NKK, e-switch...
But the C&K selector is by far the easiest to use.
--Chuck
3:21 a.m.
On Sun, Nov 6, 2016 at 3:45 PM, Chuck Guzis <cclist at sydex.com> wrote:
On 11/05/2016 07:11 PM, Mike Ross wrote:
Ahhh ok. I know the square root of bugger all about Altairs; I'm
mostly a DEC pdp and IBM mainframe/midrange guy. I picked up the
Altair a few years ago as an 'oh by the way' thing when I saw it at a
cheap price; I'm only just getting into it now. It does basically
work; it seems to be running some kind of ROM because when I power it
up it runs and the lights chase like a register increment thing. But
can't do much else due to broken/flaky switches.
I'll pick up some Altair schematics and see what's called for in each
switch position.
Mike
http://www.corestore.org
'No greater love hath a man than he lay down his life for his brother.
Not for millions, not for glory, not for fame.
For one person, in the dark, where no one will ever know or see.'
So you reckon those 7105SY9V3BE would suit the
Altair? OK I'll go
shopping.
That's just an estimate from memory. I'd have to dig my 8800 out, dust
it off and make measurements.
Note that the part I linked to is center-off-momentary SPDT. Clearly,
not all of the switches on the Altair are like that.
There are, of course, lots of other switch vendors, NKK, e-switch...
But the C&K selector is by far the easiest to use. 
5 Nov
5 Nov
8:34 p.m.
On 11/4/2016 8:16 PM, Mark G Thomas wrote:
Hi,
Does anyone have any available? I don't need the paddles, just the
the ON-OFF-ON momentary switches.
I got good ON-OFF address/data ones from Herb Johnson, but the momentary
ON-OFF-ON ones I have are worn out and do not return to center properly.
Mark
I think you're looking for the following (available at Mouser)
<http://www.mouser.com/search/ProductDetail.aspx?R=0virtualkey0virtualkeyM2018TYG03-JA>
The bare switch isn't in stock but you can get that switch and replace
the paddle.
It's a $5.33 experiment.
That's what I've got in my 'box-o-spares', anyway. YMMV.
BTW, the red paddle is a very good color match to the IMSAI. The blue
paddle is a way different color.
Rob
2753
days inactive
2754
days old
13 comments
8 participants
participants (8)
-
cclist＠sydex.com -
drlegendre＠gmail.com -
Mark＠Misty.com -
radioengr＠gmail.com -
rich.cini＠verizon.net -
santo.nucifora＠gmail.com -
spacewar＠gmail.com -
tmfdmike＠gmail.com