SBC6120-RC User Manual

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[[File:RC2_(Front_Small).jpg]]
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[[File:Jim Loos SBC6120-RC Front.JPG|thumb||||300px|||Jim Loos' SBC6120-RC (Front)]]
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[[File:RC2_(Back_Small).jpg]]
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[[File:Jim Loos SBC6120-RC Back.JPG|thumb||||300px|||Jim Loos' SBC6120-RC (Rear)]]
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[[File:RC2 (Back).jpg|thumb||||300px|||SBC6120-RC with VT6 installed]]
The SBC6120-RC ("''Reduced Cost''") is a simplified version of the combined [http://www.sparetimegizmos.com/Hardware/SBC6120-2.htm SBC6120 PDP-8/E replica] and the [http://www.sparetimegizmos.com/Hardware/SBC6120_Front_Panel.htm FP6120 front panel] .  The -RC model reduces the total part count of the SBC6120/FP6120 combination, eliminates some of the parts which had become difficult to find, uses a simplified front panel construction with commonly available switches, and is both significantly cheaper and easier to assemble than the original SBC6120/FP6120.  The -RC version has a functionally identical front panel to the FP6120, uses the same firmware (and indeed the same EPROMs) as the SBC6120, is still able to run OS/8 and any other software that would have run on the SBC6120.  The -RC also has a dedicated spot for attaching a [http://www.sparetimegizmos.com/Hardware/VT.htm VT6 terminal] board which allows it to connect directly to a VGA monitor and PS/2 keyboard.
The SBC6120-RC ("''Reduced Cost''") is a simplified version of the combined [http://www.sparetimegizmos.com/Hardware/SBC6120-2.htm SBC6120 PDP-8/E replica] and the [http://www.sparetimegizmos.com/Hardware/SBC6120_Front_Panel.htm FP6120 front panel] .  The -RC model reduces the total part count of the SBC6120/FP6120 combination, eliminates some of the parts which had become difficult to find, uses a simplified front panel construction with commonly available switches, and is both significantly cheaper and easier to assemble than the original SBC6120/FP6120.  The -RC version has a functionally identical front panel to the FP6120, uses the same firmware (and indeed the same EPROMs) as the SBC6120, is still able to run OS/8 and any other software that would have run on the SBC6120.  The -RC also has a dedicated spot for attaching a [http://www.sparetimegizmos.com/Hardware/VT.htm VT6 terminal] board which allows it to connect directly to a VGA monitor and PS/2 keyboard.
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== Contents ==
== Contents ==
* [[Overview]]
* [[Overview]]
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* [[Assembling with or without the VT6]]
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* [[Assembling the PC Board]]
* [[Assembling the Faceplate]]
* [[Assembling the Faceplate]]
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* [[Assembling the PC Board]]
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* [[Attaching the Decal]]
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* [[Testing and Debugging]]
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* [[Final Assembly and Checkout]]
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* [[Troubleshooting Techniques]]  
* [[Using the Front Panel]]
* [[Using the Front Panel]]
* [[Hardware Description]]
* [[Hardware Description]]
* [[Firmware Description]]
* [[Firmware Description]]
* [[Detailed Parts List]]
* [[Detailed Parts List]]
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* [[Assembly Drawings]]
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* [[Drawings, Schematics and Firmware]]
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* [[FAQ]]

Latest revision as of 15:32, 29 April 2013

Jim Loos' SBC6120-RC (Front)
Jim Loos' SBC6120-RC (Rear)
SBC6120-RC with VT6 installed

The SBC6120-RC ("Reduced Cost") is a simplified version of the combined SBC6120 PDP-8/E replica and the FP6120 front panel . The -RC model reduces the total part count of the SBC6120/FP6120 combination, eliminates some of the parts which had become difficult to find, uses a simplified front panel construction with commonly available switches, and is both significantly cheaper and easier to assemble than the original SBC6120/FP6120. The -RC version has a functionally identical front panel to the FP6120, uses the same firmware (and indeed the same EPROMs) as the SBC6120, is still able to run OS/8 and any other software that would have run on the SBC6120. The -RC also has a dedicated spot for attaching a VT6 terminal board which allows it to connect directly to a VGA monitor and PS/2 keyboard.

There are already extensive PDF manuals online for the original SBC6120 and FP6120 front panel and much of the -RC functions, including the operation of the front panel and the built firmware reference, will be the same. This collection of wiki pages documents the aspects of the -RC which are unique to that model. It is Spare Time Gizmos first foray into user supplied community documentation, and it will be what you make it. Although I have a soft spot for the PDP-8 and sympathy for those who do too, the SBC6120, especially a reduced cost version, doesn't pay the bills and I simply do not have the time to provide the documentation that it deserves.


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