A software developer John Brooks released what is clearly a work of pure love: the first update to an operating system for the Apple II computer family since 1993.
ProDOS 2.4, released on the 30th anniversary of the introduction of the Apple II GS, brings the enhanced operating system to even older Apple II systems, including the original Apple ][ and ][+.
Note: ProDOS 2.4 is now updated to ProDOS 2.4.1.
ProDOS 2.4 adds new features for all Apple II computers, including the 1977 Integer ROM Apple II. The last release, version 2.0.3, was released in 1993 by Apple computer, 23 years previously.
Download: ProDOS 2.4.1 by J.B. Brooks (DSK) (933)
source: archive.org
Photo Gallery update of my Retro Collection / Retro Trash.
Many things in the photos are not visible because are in hidden places or deliberately hidden.
I seem to have accumulated a lot of things in these long years and this is a good time to meditate what to do and what not to do, absolutely do not sell anything or donating, but also not continue to accumulate, in fact from a few months i’m moving just on repairs and modding and i must say that i feel much better.
Photo Gallery:
Commodore Amiga 600 – External Floppy Drive as DF0.
This mod is very easy, just follow the schematic attached to this post.
Gallery:
Schematic:
Works that have been made:
- Cleaning the leaked acid (KONTAKT PLCC)
- Sprayed a thin layer of insulating lacquer (DUE-CI V-66)
Gallery:
Fortunately a year ago i have also updated the CPLD code (Xilinx) of the Ultimate 1MB to version v2, needed for this update!
Gallery:
source: atariage.com
2 x Texas Instruments TI-99/4 Power Supply Fixed
- Removed the RIFA Filter Capacitor, one exploded.
Gallery:
Texas Instruments TI-99/4 Fixed
Defect:
- Garbage screen on startup immediatly or after a couple of minutes.
Fix:
- This defect is very similar to the one of the Coleco Vision console.
The problem are the pins oxidized of the power switch, i have sprayed R-11 and the problem it’s disappeared completely.
I left turned on the computer for more than 2 hours and i have made a 50 x power cycle (ON/OFF) and the problem is no longer appeared.
Note:
I thought there had to be a VDP RAM problem with a diagnosis made remotely without having the TI-99/4 in the laboratory.
To avoid using the lame RF modulator i have used a standard Commodore 64 composite cable that works very well with a NTSC composite video output.
Gallery:
Commodore 64G repaired (1 of 2)
Defect:
Repair:
- Replaced 1 x MOS 7707 (7406) U8
Note:
- The motherboard has been repaired several times, the technician probably in a previous life was a butcher.
Commodore 64 repaired (2 of 2)
Defect:
- Garbage screen but runs programs perfectly.
Repair:
- Replaced 1 x MOS 906114 (PLA) U17
Ikari has released a new firmware for the SD2Snes Flash Cartridge (Super Nintendo/Famicom). The upgrade instructions can be found here.
Changelog:
- major overhaul of the in-game hook code, with more help from the FPGA, to significantly reduce CPU footprint. This improves hook compatibility with a variety of games.
- in-game hook: avoid disruption of manual controller reads (fixes controls in Super Star Wars games)
- new option: “Hide file extensions” (effective after next directory change)
- do not silently fail to load saved games when the sd2snes/saves folder does not exist (create the folder instead)
- do not silently fail to load/save cheat files when the sd2snes/cheats folder does not exist (create the folder instead)
- Cx4 core now runs at exactly 20Mhz
- fixes:
- MSU1: avoid missed control register status changes on rapid rewrites (fixes FF3 Dancing Mad, Zelda FMV missing audio)
- fix auto region patch timing (hopefully)
- fix DSP1 header detection (fixes Ballz 3D JPN)
- add reset hook to boot games on start of frame only (fixes Boogerman PAL)
- clear entire SPC700 RAM (do not spare IPL area) – fixes echo artifacts in many games
- minor cosmetic changes:
- resize SPC player loading window
- prevent flickering letters on System Information screen
Download:
source: sd2snes.de
SNDH archive v4.6 released - 345 new/updated SNDH files (437 subtunes) – (total 9893 tunes)
Ever since the birth of the Atari ST, different chip music formats have had different ways to use them. If you are coding a chip music player for the Atari ST you would have to use dozens and dozens of special ways to replay music.
But in the mid 90′s, BDC of Aura crew became tired of this inelegant system and decided to fix the issue once and for all. He then created the ‘SNDH’ file format. SNDH is actually the original songfile and replaycode with a header bolted on top of the music and replayer. The header has a unified calling interface no matter what type of chip music is hidden beneath it, and it has extended datas about the music.
Download: SNDH Atari ST YM2149 Archive v4.6 (1258)
source: sndh.atari.org
The MixSID is a stereo SID board for the C64 that can be used with any combination of SID models on a wide range of C64 mainboards.
Features include an integrated stereo channel mixer, pragmatic stereo addressing scheme, flexible handling of io areas, onboard audio input, output and digiboost circuits, dedicated stereo output, full paddle compatibility and versatile digital control.
source: henning-bekel.de
The 13th X party will be held from October 28th until October 30rd 2016. The party will be at the location: De Hoof 18, Someren – the Netherlands. Competitions: C64 Demo, C64 Music and C64 Graphics.
source: x-2016 homepage
Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.
Titles:
- Kill the Alien
- Super Breakout Preview +
- Breakaway V1.1
- Hover Raider RX +2H [seuck]
- Paintress +2
- Yatzy
- Planet Golf Preview +1D
- Space Invadaz Extra Preview
- C64ColQuiz +1H
- F-Clash 64 [seuck]
- C64ColQuiz
- Blaster Twins Preview
- Die! Alien Slime +8D
- Kill the Alien +2
- Uni Games Preview V0.24
- Zetio +1DT
- Fort Django +
- Fort Django
- Iron Lord [1581,FD,HD]
- Spaceman Splorf: Planet of Doom V1.1 +2MD
- Retro Bombers Preview 1
- Color Overload
- Super JumpKick Turbo 64 (Beta)
- The Uni Games V0.3
- The Uni Games Preview V3 (CommVEx release)
- Agent-Test +2T
- Gradius +2DMFGH
- Nemesis – The Final Challenge +2DMFGH
- Croll Ship +4D
- Ghost Chaser +5D
- World Conquest
Download: All Games in One Archive (3555)
source: csdb.dk
Apple Computer 1, also known later as the Apple I, or Apple-1, was released by the Apple Computer Company (now Apple Inc.) in 1976. It was designed and hand-built by Steve Wozniak. Wozniak’s friend Steve Jobs had the idea of selling the computer.
The Apple I was Apple’s first product, and to finance its creation, Jobs sold his only means of transportation, a VW Microbus, and Wozniak sold his HP-65 calculator for $500. It was demonstrated in July 1976 at the Homebrew Computer Club in Palo Alto, California.
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Apple 1 (Mimeo / Mike Willegal Clone) Assembled for a friend of mine; Paolo Cognetti.
Many thanks for the Technical & Moral support to: Piero Todorovich and Alessandro Polito.
I also thank for some electronic components: Gabriele Molesto Zaverio of Museo Dell’informatica Funzionante, Piero Todorovich.
I had several problems with this Apple 1 clone, i very briefly describe the problems below and i attach some photos of the assembling stages.
- 1 – No video image, all voltages are ok.
- 1 + MPS3704 Transistor failure replaced with a 2N3704 pinout not compatible.
- 2 – Garbage screen during boot.
- 2 + Replaced 2 of 7 Shift Register 2504V
- 3 – Keyboard inputs not working, the WOZ monitor is freezed and shows an “@ \” but the “\” does not wrap.
- 3 + Replaced a 27k resistor half broken, probably during transport the capacitor has crushed the resistor.
- 4 – The keyboard does not respond correctly, typing A they print @, typing 1 they print 0 … and so on …
- 4 + Keyboard adapter from Apple II/+ to Apple 1 in short circuit. A wire is skewered in a pin of a Socket.
- 5 – The computer does not respond correctly, but it seems to work. The WOZ monitor responds to commands but does not write to memory and print random locations.
- 5 + Replaced a 7410 which had a pin always at high level.
- 6 – The keyboard has several problems, some switches are completly dead.
- 6 + Replaced switches.
Photos of the assembling stages:
Video:
Defect:
- Dead and then Garbage screen.
Components replaced/fixes:
- 1 x CPU 6502 (DH8)
- 1 x RAM MN4164P (DC3)
- One switch of the DIP Switch was in a wrong posistion.
- Fixed the connection of the original lamp (power on led) with the pins cutted.
- Inserted the missing Z80 CPU (DF8)
The keyboard is not working correctly, some keyboard keys are totally dead.
Gallery of the repair:
Pravetz computers
Pravetz (Правец in the original Cyrillic, series 8 and series 16) were Bulgarian computers, manufactured mainly in the town of Pravetz. Some components and software were produced in Stara Zagora, Plovdiv, and other Bulgarian cities.
The first Bulgarian-made personal computer, IMKO-1, was a prototype of the Pravetz computers that were developed by Ivan Vassilev Marangozov, who was often accused of cloning the Apple II. A few early models were produced at the ITKR (pronounced ee-teh-kah-reh, Institute of Technical Cybernetics and Robotics), a section of the Bulgarian Academy of Sciences. Industrial production in Pravetz started shortly after.
Pravetz computers were of major importance in the economy of the Comecon.
In October 2013, a privately held Bulgarian company claimed in their website to have the rights on the trademark and misleadingly announced that “Pravetz Computers are returning to market”. In fact, the company has no link to the original “Pravetz” computers known during the Soviet Era.
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source: wikipedia
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