SCRG Switch a Slot schematics?

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SCRG Switch a Slot schematics?

Does anyone know if a schematic exists for the SCRG Switch a Slot? Seems like the Switch a Slot is pretty rare and the chances of finding one even slimmer. Was wanting to make one instead, but cant find any schematics on it.

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Well I don't have the

Well I don't have the schematic but you might be able to get a clone board

http://a2central.com/wp-content/uploads/sites/3/2008/07/littleexpanderplus.jpg

from here:

https://a2central.com/1552/kfest-2008-saturday-report/

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They don't seem to be sold

They don't seem to be sold anymore.

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Are they really that rare?  I

Are they really that rare?  I've got one that I've had for years.  It's a pretty simple device.  I'd expect some of the parts in it may not be that easy to find anymore though.

 

 

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softwarejanitor wrote:Are

softwarejanitor wrote:

Are they really that rare?  I've got one that I've had for years.  It's a pretty simple device.  I'd expect some of the parts in it may not be that easy to find anymore though.

 

 

Doesn't seem like it would be hard to make based on the blurry images of it, and the images of the LittleExpanderPlus. 

I'm just surprised there's not a active product for a slot switcher.

Would you possibly be interested in selling yours?

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I'd never really thought

I'd never really thought about selling it.  I was trying to sell some other Apple II gear a while back and it was such a hassle I gave up on it.

 

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Can you post a couple of clear photos of

Can you post a couple of clear photos of the front & back of the card?

Thanks in advance.

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Which card?  The little card

Which card?  The little card on the Switch-A-Slot that plugs into an Apple II slot has pretty much nothing on it.  It just maps the pins to wires that run in a bundle to the box.  The box has a PCB in the bottom of it that has the slots in it and the rotary switch on the front of the box attaches to that PCB.  I think it pretty nearly mechanically switches some of the key signals.  The PCB in the box doesn't have much on it.  It's just a really simplistic device.  Anyway, I really don't want to take it apart enough to take a picture of the bottom side of that PCB.

 

Edit -- I guess you mean the Littlejohn board.  Unfortunately it appears all of his stuff is out of production these days.

 

 

 

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Well if you ever want to get

Well if you ever want to get rid of it hmu.

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So on the Littlejohn designed

So on the Littlejohn designed board, my question is where does the rotary switch hook up to select the slot?  Or am I missing something?  I understand they've added a power plug for an ATX or ITX style power supply but it doesn't look like it is a clone of the SCRG in other ways than that.

 

 

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softwarejanitor wrote:So on

softwarejanitor wrote:

So on the Littlejohn designed board, my question is where does the rotary switch hook up to select the slot?  Or am I missing something?  I understand they've added a power plug for an ATX or ITX style power supply but it doesn't look like it is a clone of the SCRG in other ways than that.

 

 

Solder to the back of the board based on this image.

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Thanks, that is a much more

Thanks, that is a much more useful image to show how that thing really works.

 

 

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