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Recovery electronic components from a motherboard

January 5th, 2015 4 comments

Recovery electronic components from a motherboard that was given to me.

Components recovered:

  • 2 x INS 8250N (UART)
  • 2 x 2764 (EPROM)
  • 2 x 2732 (EPROM)
  • 2 x HM 6264P-15 (STATIC RAM)
  • 16 x TMS 4256-15 (RAM)
  • 16 x MB 8264A-15 (RAM)
Categories: Donations, News & Rumors, Today

High Voltage SID Collection Update #62

January 1st, 2015 No comments

The High Voltage SID Collection (HVSC) is a freeware hobby project which organises Commodore 64 music (also known as SID music) into an archive for both musicians and fans alike.

The work on the collection is done completely in the Team and contributors’ spare time and is proudly one of the largest and most accurate computer music collections known.

This update features (all approximates):

  • 639 new SIDs
  • 168 fixed/better rips
  • 1 repeats/bad rips eliminated
  • 181 SID credit fixes
  • 7 SID model/clock infos
  • 7 tunes from /DEMOS/UNKNOWN/ identified
  • 5 tunes from /GAMES/ identified
  • 20 tunes moved out of /DEMOS/ to their composers’ directories
  • 6 tunes moved out of /GAMES/ to their composers’ directories

Download:

source: www.hvsc.c64.org

YMT-Player by Peter Jørgensen (aka: Fedepede)

December 29th, 2014 No comments

YMT-Player is a player that allow you to play Project-Ymer YMT files (Windows) on the Atari ST. The program is made by Peter Jørgensen aka. fedepede.

What is Project-Ymer YMT files ?

YMT files are like the YM/AY files. Music files where you sampled data from the sound chip register (YM2149/AY8910) in a certain interval, instead of having a dedicate player. Up to now (to my knowledge), there have only been YM/AY player that could play tune/score files, that was sampled at 50HZ, but the YMT player can play files up to 300hz (there are some 50hz+ tunes/scores include in the examples)

The advantaged of AY/YM/YMT format, is that to replay these tunes/scores cost very little CPU power, so if you need a lot power for a eg. a 3D demo,  when it could be a wise choice to use it, because it leaves most of the CPU power for 3D calculations and the graphic etc, and the disadvantaged is that it use a lot of memory, and also that it is nearly impossible to make a routine that can capture and use the SID sound and Samples etc. It is also why those files need to be hand made, that is the reason why YMT-Player only support pure YM2149 sound.

The rar archive both contain a Floppy and a HD version.

Download: YMT-Player (1435)

The Program in action on Youtube.

source: fedepede04.dk

Categories: Atari, News & Rumors, Today

(Italian) Jurassic News numero #51

December 29th, 2014 No comments

Sorry, this entry is only available in Italian.

Categories: Magazine, News & Rumors, Today

C64 Game: Revelation +5DGH 101% / Honey Bee +29D …

December 29th, 2014 No comments

Some new games or tools (Cracked / Trained or Unrealeased) for Commodore 64 have been released from your favorites groups.

Titles:

  • Savage [jewel]
  • Blackjack aka Twenty-One +2 DE
  • Star Trek: The Next Generation
  • Honey Bee +29D [crazy hack]
  • Mini Arcade: Climax +3FD [pal/ntsc]
  • Havoc +18D [crazy hack]
  • $2000-$3fff &D
  • Boxing Manager 2 +2D
  • Chopper Commander +29D [crazy hack]
  • Vertical Shooter Preview
  • Ah-Type Preview
  • Unknown Shooter Preview
  • Stinger! +3D [onefiled]
  • Target Renegade +7DG +Pic 101%
  • Revelation +5DGH 101%
  • Xmas Crazy +5
  • Confused? +D
  • Santa’s Christmas Caper +25D [crazy hack]
  • Complex +2D
  • The Adventures of Alain [seuck]
  • Boom and Bust +2
  • Melting Trail
  • Props +
  • Cherry Picker +
  • Old Sam +2
  • F1 Tornado +27D [crazy hack]

Download: All Games in One Archive (3171)

source: csdb.dk

A new donation from Piero Todorovich

December 26th, 2014 No comments

I thank Piero Todorovich for the donation.

Electronic components donated:

  • 1 x MOS 8566R2 (VIC II PAL C128)
  • 1 x MOS 6569R3 (VIC II PAL C64)
  • 1 x MOS 8563R9 (Video Display Controller VDC)
  • 2 x MOS 6526 (Complex Interface Adapter CIA)
  • 1 x MOS 8722R2 (Memory Management Unit MMU)
  • 1 x MOS 6581R3 (SID)
  • 1 x MOS 6581 (SID)
  • 1 x MOS 318018-02 (Commodore 128 BASIC Lo Rom)
  • 1 x MOS 318019-02 (Commodore 128 BASIC Hi Rom)
  • 1 x MOS 251913-01 (BASIC/Kernal ROM C64C/C128)
  • 1 x MOS 318020-03 (Commodore 128 Kernal Rom)
  • 1 x MOS 390059-01 (Commodore 128 character Rom)
  • 2 x TMM 23256P (256k BIT Mask ROM)
  • 1 x OKI M2764Z (8K x 8 PROM)
  • 1 x AMI 6359112 (IBM 5150 ROM Basic 1.1 FA000-FBFFF; IBM P/N: 5000022)
  • 1 x AMI 6359113 (IBM 5150 ROM Basic 1.1 FC000-FDFFF; IBM P/N: 5000023)
  • 6 x AMI 6359300 (CGA/MDA BIOS ROM)
  • 1 x AMI 6277356 (IBM EGA BIOS ROM)
  • 2 x MOTOROLA 5000027 (IBM 5160 BIOS ROM)
Categories: Donations, News & Rumors, Today

Merry Christmas and a Happy New Year

December 24th, 2014 No comments

December 22nd, 2014 Comments off
Categories: Event(s), News & Rumors, Today

December 10th, 2014 Comments off

Apple III (Apple ///)

December 9th, 2014 No comments

Repairs and calibrations made:

  • After a few days of normal use of the Apple /// is died the Keyboard Encoder (341-0035-00). I have replaced the chip with the Keyboard Encoder SMC KR3600-075B1 which fortunately is still available.
  • Removed the filter capacitor.
  • Replaced the bulb of the power-on that is embedded in the keyboard.
  • Replaced all rubber feets.
  • Calibration of the Floppy Drive.
  • Replaced some switches of the keyboard.

Repairing keyboard Apple ///:

It seems incredible but there is always a button that doesn’t work ;-D

I found on some keyboards of the TI-99/4A the same buttons but with the plunger much smaller. I have used the plunger of the Apple /// button on the TI-99/4a button and i have fixed the problem elegantly ;-D

Thank to my friend Ninetyniner Iuc for the donation of spare parts.

Gallery:

The Apple III (often rendered as Apple ///) is a business-oriented personal computer produced and released by Apple Computer that was intended as the successor to the Apple II series, but was largely considered a failure in the market. Development work on the Apple III started in late 1978 under the guidance of Dr. Wendell Sander. It had the internal code name of “Sara”, named after Sander’s daughter. The machine was first announced and released on May 19, 1980, but due to serious stability issues that required a design overhaul and a recall of existing machines, it was formally reintroduced the following autumn. Development stopped and the Apple III was discontinued on April 24, 1984, and the III Plus was dropped from the Apple product line in September 1985.

The Apple III could be viewed as an enhanced Apple II – then the newest heir to a line of 8-bit machines dating back to 1976. However, the Apple III was not part of the Apple II line, but rather a close cousin. The key features business users wanted in a personal computer were a true typewriter-style upper/lowercase keyboard (as opposed to the Apple II which was based on a teletype keyboard) and 80 column display. In addition, the machine had to pass U.S. Federal Communications Commission (FCC) Radio Frequency Interference (RFI) qualifications for business equipment. In 1981, International Business Machines unveiled the IBM Personal Computer (IBM PC) – a completely new 16-bit design soon available in a wide range of inexpensive clones. The business market moved rapidly towards the PC DOS/MS-DOS platform, eventually pulling away from the Apple 8-bit computer line.

Despite numerous stability issues and a recall that included the first 14,000 units off the assembly line, Apple was eventually able to produce a reliable and dependable version of the machine. However, damage to the computer’s reputation had already been done and it failed to do well commercially as a direct result. In the end, an estimated 65,000–75,000 Apple III computers were sold. The Apple III Plus brought this up to ~120,000. Apple co-founder Steve Wozniak stated that the primary reason for the Apple III’s failure was that the system was designed by Apple’s marketing department, unlike Apple’s previous engineering-driven projects. The Apple III’s failure led to Apple reevaluating their plan to phase out the Apple II, and eventual continuation of development of the older machine. As a result, later Apple II models incorporated some hardware, such as the Apple Scribe Printer, a thermal printer, and software technologies of the Apple III.

source: wikipedia

November 30th, 2014 Comments off

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Categories: Donations, News & Rumors, Today