Add STPSU page with manual PDF and product images, deep-link from fleet

retro/atari-mega-st-fleet/index.njk

@@ -15,7 +15,7 @@ parent: "/retro/"
 <ul>
 <li><strong>The heirloom machine</strong>, kept as close to factory-original as possible, running the stock TOS 1.04 with a classic floppy drive and its own original Atari keyboard and mouse. Its job is to be a baseline reference: if something breaks on a modded machine, this one proves the fault isn't in the software.</li>
 <li><strong>The "Low" machine</strong>, a bargain-bin Mega ST 4 rebuilt with a <a href="/retro/storm-cloudy/">Cloudy/Storm ST combo</a> for TOS switching and extra FastRAM, a <a href="/retro/gotek/">Gotek floppy emulator</a>, an <a href="/retro/ultrasatan/">UltraSatan</a> hard disk emulator, a <a href="/retro/sidecartridge/">SidecarTridge multi-device</a> for ROM, floppy, and Wi-Fi tricks, and a <a href="/retro/atari-networking-bbs/">Wi-Fi modem</a> for dialing into BBSs. It uses an original Atari keyboard and a <a href="/retro/mouster/">mouSTer</a> adapter with a USB mouse. This is the demo- and game-machine, optimized for fast disk-image swapping rather than serious productivity.</li>
-<li><strong>The "High" machine</strong>, the workstation build. A <a href="/retro/monsterboard/">MonSTerBoard</a> adds 8MB of AltRAM, IDE storage, and flashable TOS (currently TOS 2.06), running Geneva for real multitasking. An <a href="/retro/et4000-experiment/">ET4000 graphics card</a> drives a dedicated monitor for higher resolutions. A <a href="/retro/netusb/">NetUSBee</a> adapter and an <a href="/retro/eiffel/">Eiffel interface</a> for a PS/2 keyboard and mouse round it out.</li>
+<li><strong>The "High" machine</strong>, the workstation build. A <a href="/retro/monsterboard/">MonSTerBoard</a> adds 8MB of AltRAM, IDE storage, and flashable TOS (currently TOS 2.06), running Geneva for real multitasking. An <a href="/retro/et4000-experiment/">ET4000 graphics card</a> drives a dedicated monitor for higher resolutions. A <a href="/retro/netusb/">NetUSBee</a> adapter, an <a href="/retro/eiffel/">Eiffel interface</a> for a PS/2 keyboard and mouse, and a new <a href="/retro/stpsu/">STPSU</a> for clean, stable power round it out.</li>
 <li><strong>The spare Mega ST 2</strong>, a reserve and donor machine, kept in largely original condition, used to safely test upgrades before they go into the "real" machines.</li>
 </ul>
 

retro/index.njk

@@ -46,6 +46,9 @@ sections:
       - title: "🖱️ mouSTer"
         summary: "Connecting a modern USB mouse to the Mega ST 4 'Low' with the mouSTer DB-9 adapter."
         href: "/retro/mouster/"
+      - title: "🔌 STPSU"
+        summary: "Replacing the aging Mega ST 4 'High' power supply with a modern STPSU for clean, stable power, especially for the ET4000."
+        href: "/retro/stpsu/"
   - heading: "Amiga Corner"
     cards:
       - title: "⚔️ Vampire, A600GS or MiSTer"

retro/stpsu/index.njk

@@ -0,0 +1,49 @@
+---
+title: "STPSU: Modern Replacement Power Supply for the Mega ST"
+section: "retro"
+tags: "retro"
+description: "Replacing the aging Mega ST power supply with a modern CenturionTech STPSU for stable, clean power, especially for the ET4000."
+layout: base.njk
+parent: "/retro/"
+---
+<h1>STPSU: Modern Replacement Power Supply for the Mega ST</h1>
+<div class="detail-content">
+
+<p>My <a href="/retro/atari-mega-st-fleet/">Mega ST 4 "High"</a> machine runs on a modern replacement power supply, the <a href="https://centuriontech.eu/product/stpsu-st/" target="_blank">STPSU</a> from CenturionTech. I went for this because the original PSU is aging, and a modern supply delivers far more stable power, which matters especially with the <a href="/retro/et4000-experiment/">ET4000</a> graphics card drawing from the 5V and 12V rails.</p>
+
+<h2>Why a new power supply</h2>
+<p>The original Atari PSUs are decades old now, and their output rails can drift, ripple or sag under load. A highly upgraded machine like the "High" with its MonSTerBoard, IDE storage and ET4000 card draws more current than a stock ST, and a clean, stable supply avoids the crashes and instability that can come from a worn-out PSU. The STPSU is a drop-in replacement designed specifically for the Atari 520/1040 STF/STFM/E and Mega ST machines.</p>
+
+<h2>STPSU features</h2>
+<ul>
+<li><strong>True plug-and-play</strong>, a complete drop-in replacement, no modification to the computer needed.</li>
+<li><strong>230V and 110V AC</strong>, works on both power networks.</li>
+<li><strong>Efficient switched-mode design</strong>, very low heat dissipation.</li>
+<li><strong>High current output</strong>, supports heavily upgraded and modified configurations.</li>
+<li><strong>Stable, low-noise output</strong>, in all working conditions.</li>
+<li><strong>Zero noise design</strong>, no heatsink or fan needed.</li>
+<li><strong>Extra on-board output connector</strong>, to power additional devices.</li>
+<li><strong>On-board LED indicators</strong>, for operational status.</li>
+<li><strong>Safety features</strong>, thermal shutdown, short-circuit and over-current protection.</li>
+</ul>
+
+<h2>My Setup</h2>
+<p>In the Mega ST 4 "High" machine the STPSU provides clean, stable power to the <a href="/retro/monsterboard/">MonSTerBoard</a>, IDE storage, the <a href="/retro/et4000-experiment/">ET4000</a> and the rest of the workstation, keeping everything running reliably.</p>
+
+<h2>Gallery</h2>
+<img src="centurion-1.png" alt="The STPSU replacement power supply" width="600" height="600">
+<p class="caption">The STPSU replacement power supply from CenturionTech.</p>
+<img src="centurion-2.png" alt="STPSU power supply detail" width="600" height="600">
+<p class="caption">The STPSU board detail.</p>
+<img src="centurion-3.png" alt="STPSU power supply installation" width="600" height="600">
+<p class="caption">The STPSU ready for installation.</p>
+
+<h2>Manual and documentation</h2>
+<p>CenturionTech provide a <a href="https://centuriontech.eu/download/STPSU%20User%20manual%201.01.pdf" target="_blank">user manual PDF</a>. Since such documents can disappear from the web, I've also kept a local copy of the manual (version 1.01) in this project:</p>
+<p><a href="STPSU-User-Manual-1.01.pdf" download>Download the STPSU User Manual (1.01) here</a></p>
+
+<h2>Sources</h2>
+<ul>
+<li><a href="https://centuriontech.eu/product/stpsu-st/" target="_blank">STPSU r2022 power supply unit - CenturionTech (product page)</a></li>
+</ul>
+</div>