Monthly Archives: June 2019

Retr0bright by sunlight?

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I heard and saw a video about doing the retr0bright with just sunlight few months ago : https://www.youtube.com/watch?v=8P1OVj0IcqY

I was curious to test it, no matter it being hoax or not. Risks were low. However, I had to wait To get good weather here in Finland. When the weather got better, I chose the piece to be tested with: Apple //e 65c02 (Nordic, swe/fin) unit’s lid was good candidate. It had yellowed but in the middle where the monitor had stand for years, was not much so. Therefore, there would be great contrast In addition, should get good results.

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Therefore, I removed the logos from the lid, cleaned it and placed in the sun. After first day, maybe 5 hours of direct sunlight blasted the lid, but I could not see any difference. So I kept going, on and off when I had the time, for days, actually few weeks, total maybe being somewhere between 30-40 hours. Then I gave up.  I thought it did nothing… but when i compared it to the case (indoors), there was quite a big difference! 

There is talk how it makes the plastic brittle, aging it faster and turning it to dust etc… But if this is not happening over weeks, months or a year, I really do not care. If the sunlight would break things in short time, there would be serious warning about it to consumers.

 

FinApple 2019 (c)
Apple II Forever.

Tillbehör till Apple!

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Just few finds lately,

Apple II & /// brouchure “Tillbehör till Apple” (Gylling System-Elektronik AB), Febuari 1982, In Swedish. In English it would be translated as “Accessories for Apple”. It lists all kinds of producs that were available for Apple II and /// in Sweden, late 1981-early 1982.

Disk II analog board, for repairing some Disk II drive i have with missing analog board/broken parts. Never have too many of these. Actually i could use complate DISK II-drive without the enclousure, to replace one early DISK /// (in Disk II enclousure) mechanical parts. Contact me if you have one?

 

“Tillbehör till Apple” PDF (OCR in Swedish) is available here: https://archive.org/details/Tillbehor_Till_Apple

The quality is not perfect. This is first scannings with the new CZUR AURA book scanner and i’ve not got the setup pefected as of yet. I might rescan this but here it is for time being.

 

FinApple 2019 (c)
Apple II Forever.

From Plus to Europlus:

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Yet an another Apple ][ Europlus rescued… i couldn’t help myself even i really don’t “need” any more of these. I don’t even usually use pre Apple //e models that often.. But we all hobbyists know how it is, don’t we?

Production details:

  • APPLE II – MAY 1977 > MAY 1979 – A2S1 – BLACK & WHITE label from 0001
  • EUROMOD – ???  1978 > AUG 1980 – A2S2 – BLACK & WHITE label from 500.000
  • PLUS – JUNE 1979 > DEC 1982 – A2S2 – GREEN & WHITE label from 0001
  • EUROPLUS – AUG  1979 > EARLY 1983 –  IA2S2 – GREEN & WHITE label from 600.000

Production/assembly started in Cork, Ireland, in mid 1980.

 

Apple II europlus:

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Case serial : A2S2-29471

This seems to be originally Plus-model and upgraded to Europlus to be used in Europe before the Europlus was introduced. The Cork, Ireland, factory indeed started operating in Mid 1980 so this predates that. The actual Cork made europlus would have IA2S2-prefix and serials starting from 600000.

 

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Main logic board serial : 8005

 

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Main logic board Revision 4 (with 16K memory blocks)

 

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Slot 7 have the sticker glued on “This slot only for euro color PAL/SECAM card. Do not use any other card”

 

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ROM chips (from late 1978 to late 1979).

ROM model/date/code:
ROM F8 = 7943 341-0020-00
ROM F0 = 7919 341-0015-00
ROM E8 = 7906 341-0014-00
ROM E0 = 7903 341-0013-00
ROM D8 = 7907 341-0012-00
ROM D0 = 7851 341-0011-00 

 

Other materials:

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-Disk II inferface card (clone)
-Epson printer card with cable 
-1/2 height 5.25″ floppy drive (Model: GYE 55-A)
-The Applesoft Tutorial (book) 1979
-Apple II reference manual (book) 1979
-Basic Programming reference manual (book) 1979
-Pair of Paddles (16-pin)

 

FinApple 2019 (c)
Apple II Europlus Forever.