CA-PSU Amiga A500, A500 Plus, A600, A1200

 £ 70.83 Excl. VAT

CA-PSU for Amiga A500, A500 Plus, A600, A1200 (CA-PSU stands for Compact Amiga Power Supply Unit), where “compact” designates the three target computers A500, A600 and A1200. It is the first power supply on the market that fully complies with the original Commodore specifications, introducing cable drop compensation for best regulation that even settles the voltage drop in the input filter of the target computers. This means that the voltage on the main 5V rail will never deviate more then 0.9%, measured inside the computer – no matter if the computer is in vanilla configuration or heavily expanded. Conventional power supplies will either supply too-high voltage to a vanilla machine, or too-low voltage to an expanded machine, causing malfunction or even defects. This cannot happen with our cable drop compensation technology.

Technical data in short:

  • 5V, 5A, ripple/noise 50mV max. (typically 30mV)
  • Overload on 5V tolerated up to 8A for 30 seconds
  • 5V load regulation <0.6% typical, max. 0.9% under overload condition
  • 12V up to 4A
  • -12V, 0.1A
  • Modern, high-efficiency DC-DC converter technology
  • Total output power up to 60W
  • Fanless, silent, extremely low heat

CA-PSU is a two-brick solution: One mains-connected power brick and the CA-PSU converter box with the switch and square 5-pin DIN connector to the computer. This moves the power switch a lot closer to the computer, reducing the probability of inadvertent switching, for example if the power supply is under the table near your feet.

CA-PSU has the best overall efficiency on the market, with a worst-case efficiency of 80.1% (best case >82.5%). The best competing product peaks at just over 70%, and some original Commodore power supplies have an efficiency of only 55%. This means that with our CA-PSU, there’s less total heat, less power consumption and a longer life expectancy because there is less stress on the components.

Naturally, CA-PSU features over-voltage protection – every modern power supply does. We wouldn’t consider it worth mentioning, but this protection is part of a more complex block to protect your valuable classic gear: There are two critical moments that need to be taken care of: Switching on and off. CA-PSU has a controlled 5V ramp-up when switching on, ensuring safe power-up of heavily-expanded machines. Traditional power supplies without such a controlled startup-ramp tend to “swing in” to the target voltage, which might cause malfunction or even defects. Further, switching off will start a short timer, ensuring that the next switch-on event can’t happen until a few seconds after switching off. This ensures that capacitors in the computer and expansion gear are sufficiently discharged, and switching on won’t cause 3.3V regulators of modern expansions to oscillate, which may cause severe damage.

In the unlikely event that these elaborate precautions fail, CA-PSU is covered by a German product liability insurance.

This new production run of CA-PSU includes an international power brick that directly plugs into the socket (no mains cable). International adapters included are:

  • Central Europe
  • United Kingdom
  • Australia
  • USA

CA-PSU is compatible with worldwide grid voltages and frequencies (110-240V AC and 50 or 60Hz).




You may also like…

Keyrah V3 for Commodore Amiga, Atari ST & PC
Keyrah V3 – Commodore Amiga, Atari ST, PC
Keyrah V3 allows you to connect original keyboards of classic computer systems like the Commodore 64 or the Amiga 1200 to modern computers (e.g. PC, Mac, or the Raspberry Pi) via USB. It also supports digital joysticks and analogue paddles of such classic systems, which will be converted to standard HID game controllers. Supported systems with this model are:
  • Commodore C64 (all models)
  • Commodore SX-64
  • Commodore VIC-20 (VC20)
  • Commodore C16
  • Commodore C128D
  • Amiga 1200
  • Amiga 600
  • Amiga 500
  • Amiga 4000/CDTV
  • Atari ST (8-pin connector only)
  • PC XT / PC AT (with PS/2 adapter)
The following systems can be made compatible by mounting additional connectors on the circuit board or using adapters:
  • Commodore C128
  • Commodore C116
  • Commodore plus/4
  • Commodore PET (8296)
  • Commodore CBM2 (B-Series)
  • Amiga 2000/3000 (with PS2 adapter)
Keyrah V3's switch allows you to switch between the standard and a keymap that's geared towards emulation. This switch looks and feels like the original power switch of the Commodore 64, adding a third switch position that allows you to send an ACPI signal to shut down/power up your computer. To avoid triggering the shutdown procedure by accident, this third position is not locked, so the switch will always flip back from it if not held in place. For further safety, the ACPI signal is only sent to the computer after being held in this position for five seconds. The box includes the Keyrah V3 circuit board and a printed manual. USB cable is not included. PCB colour will vary.
 £ 47.49 Excl. VAT Purchase
Indivision MK3 AGA for Amiga A1200 and A4000T
Indivision AGA MK3 Flickerfixer for A1200 and A4000T
Indivision AGA MK3 for the A1200 and A4000T* (Not A4000D Desktop) This version of the flickerfixer is designed for the Commodore Amiga 1200, and it can also be used in an A4000T* with minor modifications to the A4000T* mainboard (further details below). Indivision AGA MK3 provides both a VGA connection and HDMI So you have the flexibility of using a CRT/LCD PC monitor with VGA or a large TV with HDMI in. All Amiga screen modes are supported and can be sent to a digital or analogue monitor at almost any frame rate (with the exception of A2024 monitor modes), either using standard VESA modes, or using custom output frequencies and size at the user's choice. Even custom screen modes like HighGFX can be used: Workbench resolutions of 1280x1024 pixels are possible without buying a dedicated graphics card. Indivision AGA Mk3 is plugged over the Lisa chip. For the first time, a second connection is required to take advantage of all features of the product: An additional adapter is clipped on top of a CIA chip to route keyboard signals to the flicker fixer. This gives way for a huge practical improvement over previous versions of the flicker fixer: You can now make small adjustments to the output picture format, including positioning and re-sizing of the output picture without the need to load the configuration tool. While Indivision predecessors required the user to exit a game, load the config tool, make adjustments and then re-boot into the game, you can now open a simple menu using a hot-key combination, make adjustments with the keyboard or mouse and then exit this live configuration menu - all this without leaving the game or demo that's currently running. Output screen modes can be saved "per input screen mode", so you can adjust your favourite Workbench resolution perfectly, while not affecting the settings you've chosen for PAL and NTSC games. Settings are saved in the flash of the flicker fixer, so they survive a reboot and/or power-cycle of the computer this allows you to "zap" through pre-sets that are ideal for a specific game or demo. With this you can adjust on the fly different settings for the built-in scanline effect, or you can compare the scaling capabilities of your monitor with the new built-in scaler of Indivision AGA MK3. The Indivision also has automatic monitor recognition, the configuration tool can detect what size of monitor is connected and make suggestions for ideal output frequencies that are within the specifications of the monitor. This reduces the "first setup" to a matter of minutes, maybe even seconds if you're using one of the pre-sets for popular display panel sizes that we provide.   What's included:
  1. Indivision AGA Mk3 for A1200/A4000T(*)
  2. Adapter board for high-definition digital (HDMI) and VGA output
  3. Adapter board for CIA chip
  4. Connection cables between all boards
  5. Short instructions
In addition, you will require:
  1. Screwdriver to open your computer
  2. A way to transfer the configuration tool (free download from our wiki)
  3. HighGFX software package from Aminet (free download for higher Workbench resolutions)
    (*)This flickerfixer will not fit into an A4000T out-of-the-box. Component CE164C gets in the way of the output cable connector and must be replaced with a lower-profile version prior to installing the flickerfixer. We recommend to do this before you order the product!   We also offer a few add-ons below which can be selected:  
  • HDMI Blackplate White or Black Trapdoor- This provides a cover with a section for the HDMI port to be accessed under the floppy drive.
  • VGA Blackplate White or Black Trapdoor - This provides a cover with a section for the VGA port to be accessed under the floppy drive.
  • Fan Holder - For those who want a fan to keep the airflow moving withour without fan
  Pictures vary, PCB colour is purple.    
 £ 170.83 Excl. VAT Purchase