Differences

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--- keyboard:alps_kf71cm0050 [29 Apr 2026 22:58] – created frutiger
+++ keyboard:alps_kf71cm0050 [14 May 2026 03:32] (current) – frutiger
@@ Line 4: / Line 4: @@
 |  **Alps KF71CM0050**  ||
-| {{ keyboard:alps:temporary_image.jpg?300 |A photo of the Alps FK71CM0050}} ||
+| {{:keyboard:alps:ardent_stardent_001.png?400|A photo of the Alps FK71CM0050}} ||
-| **Switch** | [[switch:alps_skcm_blue|Alps SKCM Blue]] |
+| **Switch** | [[switch:alps_skcm_blue|Alps SKCM Blue]]\\ [[switch:alps_skcl_green|Alps SKCL Green]] |
 | **Sense method** | Metal contact |
 | **Protocol** | [[protocol:at|AT]] |
@@ Line 14: / Line 14: @@
 ===== Description =====
-The Alps KF71CM0050 is an AT-layout keyboard with Alps switches. This keyboard is known to have been procured for at least one OEM, Ardent Computer.
+The **Alps KF71CM0050** is an AT-layout keyboard documented with Alps SKCL/SKCM switches. This keyboard part number is known to have been procured only for Ardent Computer (along with it's successor, Ardent Stardent).
-===== Variants =====
+===== Construction =====
-=== Ardent / Stardent Computer Model 30·00020·01 ===
+Two versions of this keyboard were produced, presumably one before, and one after, the merger of Ardent Computer and Stellar Computer. Almost all features of the keyboard are consistent across both revisions.
-Two versions of this keyboard were produced, presumably one before, and one after, the merger of Ardent Computer and Stellar Computer. Both models possess the same model number and are incredibly similar. Universal across both keyboards are the red-legend doubleshot ABS keycaps, and the lack of a lock light sticker. Earlier models provide the name "Ardent Computer" where the lock light sticker would be, while later models are simply labeled as "Stardent".
+=== Case ===
-This keyboard seems to have been procured for the 1987 Ardent Titan Graphics Supercomputer. The system, including peripherals such as the keyboard, were sold at a base price of $79,000.((
+This board is a member of the "Alps Minifoot" series keyboards and as such, it's construction is remarkably similar to that of keyboards like the [[keyboard:epson_ap1003a|Epson AP1003A]]. However, it stands out in that it lacks a lock light cluster, with a simple placeholder sticker instead. Earlier models provide the name "Ardent Computer" where the lock light sticker would be, while later models are simply labeled as "Stardent". All lock light LEDs are subsequently incorporated within the lock switches themselves.
-[[https://www.ricomputermuseum.org/collections-gallery/equipment/ardent-titan]]
-))
+The bottom tray features two standard-sized flip-out feet and two rubber feet, with six screw sockets and four clips that secure it to the top shell. It uses a coiled, non-removable 5P DIN connector that runs out from the center of the back. The gray label provides the Ardent Computer model number, Alps model number, serial number, and a part number.
+=== PCB ===
+Both PCB revisions appear to be capable of full N-key rollover. Both keyboards have been discovered with PCB revision 12KC616A.
+=== Switches ===
+Both revisions primarily use [[switch:alps_skcm_blue|Alps SKCM Blue]] switches, with [[switch:alps_skcl_green|Alps SKCL Green]] switches for the Caps, Num and Scroll Lock keys.
+=== Keycaps ===
+All keycaps are doubleshot ABS and were manufactured by Alps Electric. They feature a proprietary red-on-white scheme that does not appear on any other keyboard.
+Keycaps over switches with integrated LEDs are doubleshot, but their legends are not.
+===== Gallery =====
+=== Ardent Stardent 130·00020·01 ===
+With P/N 546-0087-01.
+| PCB Code | Assembly No. | Manufacturing No. | Serial No. |
+| 12KC616A | KF71CM0050 | N/A | 00048 |
+<gallery showcaption>
+:keyboard:alps:ardent_stardent_001.png
+:keyboard:alps:ardent_stardent_002.png
+:keyboard:alps:ardent_stardent_003.png
+:keyboard:alps:ardent_stardent_004.png
+:keyboard:alps:ardent_stardent_005.png
+:keyboard:alps:ardent_stardent_006.png
+:keyboard:alps:ardent_stardent_007.png
+</gallery>
 {{tag>keyboard:sense-contact keyboard:oem-alps keyboard:protocol-at keyboard:layout-at keyboard:keycaps-doubleshot}}