October 13th, 2016

DynaComp 240V power supply dissection

Long time Australian Apple // enthusiasts and full time technicians Dean Claxton and Mark Cummings, lamenting the lack of official documentation on power supply circuits, have reverse engineered a circuit diagram, schematic and a parts list for the DynaComp 240V power supply (model 699-00136) which was commonly used in the Platinum Apple //e. The DynaComp 110V power supplies are probably very similar and therefore these resources will be useful for troubleshooting those models too.

The article also discusses testing capacitors in-circuit using an ESR meter.

September 28th, 2016

A2Heaven’s Apple II VGA Scaler now available

A2Heaven continues to bring Apple II hobbyists great new hardware. The Apple II VGA scaler (AIIVGAS) is an Apple II compatible circuit board for converting Apple II, II+, Europlus and Apple IIe video to VGA compatible signals for displaying on a VGA monitor.

The board is compatible with both NTSC and PAL systems. Due to the wide variation in Apple II models, there are some jumpers and in some cases additional jumper wires to be connected to enable full functionality. $85 USD


a2vgascaler_jpg-100374-500x500

September 26th, 2016

Analogue and 8Bitdo to bring wireless gaming to Apple II

Gizmodo brings us news that a wireless gaming controller is being developed for the Apple II. Check out all the juicy details here and then head to their Kickstarter to get in early on the action.

August 26th, 2016

ByteBoosters adds new Transwarp GS enhancements to product line

ByteBoosters is now selling via eBay, two new Transwarp GS enhancements.

High-speed 32KB DarkCache Card to replace the standard 8KB cache piggyback on the Transwarp GS. It uses the fastest SRAMS (8ns) available.


bb-32Kcache

$44.44 USD plus shipping – click picture for eBay listing.

Complete GAL ICs replacement set, same high using the latest hardware revision and highest speed from Lattice (7ns).


bb-twgsgals

$39.99 USD plus shipping- click picture for eBay listing.

August 26th, 2016

Manila Gear introduces the Apple IIGS VGA Adapter

Mountain View, CA, August 26, 2016 – Manila Gear, makers of the 4soniq quadraphonic sound card for the Apple IIGS, today announced the Apple IIGS VGA Adapter. The adapter lets you connect your Apple IIGS to a VGA monitor that supports 15 kHz. It consists of a DA-15 to DE-15 adapter with an integrated sync separator.


VGA-Adapter-front-hires

This is a great solution for those of us who have aging AppleColor RGB Monitors, or are still looking for a simpler and better VGA solution.

The adapter has been tested and confirmed to work with a few Benq and Samsung monitors. It can also be used with monitors that do not support 15 kHz, by using the adapter in conjunction with a frequency upscaler such as the Gonbes GBS-8200. A list of supported monitors is maintained here.

The Apple IIGS VGA Adapter retails for $30, and is now available for purchase at https://manilagear.com/product/apple-iigs-vga-adapter.

August 18th, 2016

Another prototype in the works from Fabrice Montupet, TI D-VDP9929A graphics card

Remember the Dual Mockingboard card we posted earlier and now want so badly? Check out the latest from Fabrice Montupet! New video modes! Sprites! Colors galore!


DVDP9929A_card

July 29th, 2016

A2Heaven announces availability of Apple II Midi card (Passport clone)


a2h_passport

A2Heaven.com’s Apple II Midi Passport clone card, only USD $80. Click pic for more info.

July 28th, 2016

Ian Kim’s SD-MIDI Passport compatible card


Kim_SDMIDI

Ian Kim is a card building machine. Click the pic for more information.

July 27th, 2016

A2Heaven.com releases new 8MB IIGS RAM card


IMG_20160727_224859

Run your Apple IIGS with 8MB Battery Backup RAM or using a ROM Disk and ROM Tools? Yes, it’s now possible!

The WhiteRAM 8MB will be available very soon now on A2Heaven.com for the low introductory price of USD $89.99 including shipping to anywhere in the solar system.

Unique features are:

  • Lowest power consumption (<0.8W max when active) on any 8MB board ever.
  • Smallest size 8MB expansion board ever!
  • Battery Backup 8MB RAM.
  • 512K ROM add on BOARD with ROM disk driver and Memory Test Program.
  • Built-in ROM Tools and Debugger software.
  • Quality support provided by the A2Heaven.com team.

Specifications:

  • 8MB RAM using Static RAM chip
  • 512KB ROM for ROMDisk or ROM-based tools
  • Fast RAM – 70ns
  • White PCB with status LEDs
  • Gold contact fingers ensuring high reliability.

July 27th, 2016

Ian Kim’s CP/M Turbo 7 available soon on eBay


CPM_Turbo7-1

Click graphic for additional information.

Dear friends, Z80 turbo7 card is ready. This card is compatible as MS Softcard hence, it runs MBASIC, GBASIC(It is my favorite Language).

Z80 CPU speed could selected Normal or Fast mode. Normal mode is same speed of MS Soft card and Fast mode make Z80 run to 7Mhz. But, unfortunately even 7Mhz running Z80 but, APPLE II BUS can’t give data to make satisfy for Z80, so the results is overall speed is about 1.6times faster then Normal Z80 card. It is the Maximum speed which can run as MS Softcard compatible card.

I want it to run under APPLE IIGS for many of users who want to CP/M with APPLE IIGS. It can run with Fast mode of APPLE IIGS. but CP/M card runs properly only on the ‘Normal position’.

It has 40pins AUX port for who like to make DIY board under Z80 CPU signals. I hope to see any daughter board using the AUX port.

I used PLCC type CPLD who want to solder to pull some signal from CPLD for DIYer’s board. Original Soft card doesn’t care the Signal for IO but, I added to care for the Z80 IORQ signal. Hence, you can add your IO board and could control by Z80 IO commands. Hope to like this feature.

It is selling now for Korean fans first after this I will put some on eBay for international APPLE II fans. Other English information will be followed after I put on eBay.

It doesn’t work on APPLE ][ nor ][+. (I’m trying to make it run on ][ and ][+) EDIT: (** Now it start to work on APPLE ][+ and IIe non enhanced model but ][+ only work with Normal speed)

It runs on APPLE IIe enhanced, APPLE //e platinum and APPLE IIGS (With limitation).

APPLE IIe non enhanced model have to change the CPU to 65C02.

Others;

And I trying to make a sample daughter board with it.

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