Author Archives: cosadmoza

Apple IIGS “PVT/Prototype”

opened_s

I obtained this interesting and rare prototype or “Preproduction Validation Testing” (aka: Vegas PVT) Apple IIGS lately. It didn’t come with prototype memory card “Vegas” or “Zeus – RAM CARD” marked Expansion Memory card. The power supply looked regular GS powers upply just without the apple sticker on top. Astec AA13591, Model 699-0127, 230V 50/60HZ with date 8627, Revision 01. 

 


What is : “Apple IIGS Vegas PVT” ?

PVT stands either “Prototype Version Test” or “Production Validation Testing” simply meaning revision ment for testing and product/software developemtn before actual production started.

Vegas was development name for Apple IIGS – but also various other codenames while the new system was being developed including: “Phoenix”, “Rambo”, “Gumby”, and “Cortland”.” 

Few different board types were used during the “Cortland” project :
1985 Cortland board was blue, no SKA321-03 marking close to memory chips on right side.
1986 Cortland board was green, with SKA321-03 marked close to memory chips on right side.

The case and serial number:

case_front_s

The case seems to be early, regular IIGS production model.

 

case_back_s

The back seems to be standard as well.

 

case_bottom_s

The bottom.

 

serial-gs-pvt-ireland_s

Model : A2S6000W  (Wonder what the “W” stands for?)
Serial number: C63800JA2F6000 (Wonder what the “F” stands for?)

If i figured this out correctly then it would mean :
C 6 38 00J A2F6000
CORK
1986
WEEK 38
J = 18
0018 (unit no)

 

serial-gs-ireland-rom01_s

Compared to regular Ireland made GS, serial : CK9120PLA2S6000 (Year 1989, Week 12, Unit 802, ROM01) does not have “sticker” but it’s pressed to plastic directly – serial number part itself, is a small sticker. The ones made in 1987 have the same type of layout as well.

The main logic board:

 board_s

SKA321-03 board layout.

board_left_bottom_s

Left corner:

 

ska321-03_s

Close up: the motherboard pcb is green with “SKA321-03” printed in yellow below the are where the FAST RAM chips are. 

 

gs_1987_s

Close up: while the normal production revision the same position reads “Apple //GS”. 

The VGC is soldered into the main board, not socketed – just like early ROM0 boards.

Date on board : P8615 (next to SKA321-03)
P8615 is : 15/1986 (week/year) 7-14. April 1986
Close to barcone : 351 (very faint)
Close to barconde : 8618 (left side)
Code on board : 6xx-xxxx-A (top right next to slot 7)

 

Chip dates and codes:

CPU : C65SC8160-4 / G8549 
RAM : 8531 (all)
Audio – Ensoniq ES5503 : 343-0051-A / 8701  
Sound GLU : 344S0052-1 / 8605
MEGA II : 344S-0047
VGC : 343S-0046-1 / 8611 
KBD GLU : 344-S-0048
FPI : 344S0050-1 / 8641
ROM code & version : 342-0077-B / 8727 (ROM01)

Codes for early ROM are:
341-0077-A = ROM BF (=addon extension-board with 4 x 27C256 EPROM)
342-0077-A = ROM 00 (September 1986 – August 1987)
342-0077-B = ROM 01 (September 1987 – July 1989)

I’ve reason to believe when this unit was produced it came with the ROM BF. The case was obiously swapped later on – as it most likely originally came in //e case.

 

Serial number decoder:
https://debug.ninja/tools/apple2_serial/

Apple IIGS serial numbers list : https://docs.google.com/spreadsheets/d/1UB9TyF1h3mDyUXQgGm3Z7gxENAGOTFwL1fwLySoBRyU/edit#gid=1

 

FinApple 2020 (c)
Apple II Forever.

 

 

Apple ][ mouse modification:

signed_by_2_s

Marko Laaksonen, 18/09/2020

This is Apple M0100 mouse modification from 1992. My friend Paul was studying at the Helsinki University of Technology during the early nineties.

The University had had Apple Macintoshes and replaced their equipment base with PC:s. Some members of the ICT helpdesk / -staff had tried saving some money and had tried using those older Apple mice with those completely different type of computers (As I would recall the matter from the stories of my friend from way back then.)

top_s

The aforementioned act had resulted with a bunch of broken / inoperational M0100’s (and possibly other) Apple mice.

bottom_s

Paul studied the insides of the M0100 and figured out the “SNx4LS14 Hex Schmitt-Trigger Inverter” had a certain function in the mouse. The IR-led/IR-detector pulse-form is not sharp enough (LED’s are known to have a “lag” / slowness within them.) The Schmitt-Trigger  SNx4LS14 provides a function called “hysteresis” which makes the waveform of the mouse output more “square-wave” -like. This can be observed also with an oscilloscope.

After figuring out the aforementioned, my friend decided omitting the Texas  SNx4LS14 completely and instead of that one using separate transistors suitable for that purpose.

The build/experiment was succesfull and he got those broken mice working again!

mouse_mechanism_s

As I now can see from the specs, no more than 200 milliamps should be drawn at +5 volts. I’ve used that kind of a modified mouse with the Apple//c pretty long periods of time and there has been no problems with it. I don’t remember if a ballast resistor / front resistor was / had to be used.

The aesthetics of the repair / build is not exactly “Steve Jobs -approved”  but it works all the same. Nowadays people would probably just replace the original IC. This is still pretty interesting study of a principle in practice.

Currently this mouse is not working. There’s atleast one wire that needs resoldering. 

Thanks to Marko for this artefact.

 

FinApple 2020 (c)
Apple II Forever.

 

vTech Laser 128E/EX/EX2 memory expansion card:

all_parts_for_the_kit_s

This is a clone of memory expansion card for Laser 128E, EX and EX/2 models, 702175 Rev.C – made by Renee Harke. It’s not compatible with the FIRST revision of 128 but is with the later, 128E. I have the -E revision (later motherboard design with the RAM-expansion port).

It provides up to 1MB of “Slinky” RAM for the Laser 128 aka you can use it as RAM-disk etc.

renee_harke_s

See more details a:
https://reneeharke.com/tech/2019/12/31/laser-128-memory-expansion.html?fbclid=IwAR0qxykFwOPGudYMXQEdqquYckDdlJE7JZo2yfnLaZVZBsJCILKgBvyK0HY

Renee sells this either as a kit with all parts included or fully soldered ready-to-be-installed.

I bought this as a kit with all parts included because soldering is fun!

installing_ram_s

After soldering (took few evenings as i didn’t have the time to put on this project in one-go) i used the quite handy tool sold in ebay (few euro’s) that bends the IC-legs (it has two different sizes) to correct angle – so they are easier to install to the sockets.

 

ram_installed_s

I had removed the metal shield already as it’s pain to install back .. so installing the card was pretty easy and straightforward. Renee even included the 3 little screws needed for installation – that’s nice detail and good thinking.

laser_128e_back_opened_s

Installing the case back together is slightly more frustating compared to //c – even it’s very similar design. I’m really not a fan of the plastics vTech used…

slot_5_intnernal_enable_s

Also need to configure the Slot 5 as “INTERNAL” for the RAM.

ram_test_s

The internal RAM test can be found from the monitor (CALL-151) and then typing C50AG  … i was happy my soldering was successfull…. it worked!

 

test_prodos_s

..and it was seen by the ProDOS as correct size.

ready_s

FinApple 2020 (c)
Apple II Forever.

 

 

 

 

vTech Laser 128EX:

laser_128ex_logo_s

Latest acquisition to my collection is finally here: the vTech Laser 128EX !

laser_128ex_unit_s

Compared to the 128E that i already have, the EX is slightly different, internally. It have added 64k of Video RAM on board as well the the board design itself is slightly diffrent. It have the faster 65C02 processor with possiblity to adjust the speed from standard 1MHz to 2.3 or even to 3.6MHz. So in a way it makes it something between Apple //c and Apple //c+ in a odd clone way.

The 128E had also the memory expansion slot (just no card preinstalled) as the EX model does. The EX however was delivered from the factory with the card, i’m not certain how much, if any, RAM they included. I’ve heard 128k and 256k but i’m not sure of it.

256k_ram_originally_s

Mine came with 256K RAM on the expansion card and i thought adding it to full 1MB – as of – why not?

RAM card : 256k X 1 chips (41256) 120ns

8  chips = 256K *installed*
16 chips = 512k
24 chips = 768k
32 chips = 1MB

ram_borrowed_from_s

I had an extra original Apple IIGS RAM card that had the same memory type installed so i just “borrowed” the chips from to this card so it have now full 1MB (256k x 1 DRAM).

I saw in facebook that you can test the installed ram with internal ram test with C50AG from monitor. It showed no errors.

The unit came with the correct ROM version, 6.0. That was the last revision for EX. The version 6.1 was then later released for the EX/2 that was the last of the Apple II compatible models they produced. There were more-or-less secret plans of clone model of Apple IIGS but it never materialized. I believe it was shown/demoed at some Applefest in early 90’s in the States but very little information is available about it. Now think of that…

Changing the speed of CPU is fairly easy, either from the boot by pressing “1” = 1 Mhz, “2” = 2.3MHz, “3” = 3.6MHz or simply  CTRL+RESET+1, 2 or 3. The cursor shoud flicker faster in faster modes, or just CTRL+G giving the different pitched beeb.

 

port_configuration_menu_s

There’s also port setup menu that you can access by CTRL+RESET+P.

switches_bottom_s

Undermeath of the unit there’s the same options for altering the setup of the slot assignments as in Laser 128E. You can enable the external or internal slots 5 and 7. I’ve wondered if i should change the crystal and add the switch for LCD panel for one and see if it would work as PAL unit… but both my Laser’s are so good condition i don’t really want to mess with them. I need project unit for that….

The slot assignments are:

SLOT 0 = Built-in 40-col display
SLOT 1 = Parallel/Serial printer interface 
SLOT 2 = Serial communication interface
SLOT 3 = Built-in 80-col display 
SLOT 4 = Mouse interface 
SLOT 5 = 1 Megabyte expansion RAM interface // External slot 
SLOT 6 = Built-in 5.25″ disk drive interface 
SLOT 7 = Built-in 3.5″ disk drive interface // External slot 

laser128ex_advertisement_s

I actually like this model – yes the plastic is bit cheap(ish) and the keyboard is not really that great compared to let’s say 4100-serie Apple //c or //c+ but it’s good in it’s own way. The model is almost like tuned up //c with Zipchip 4000, ROM4x, Unidisk 3.5″ and 1MB RAM added to it. Wish to have the VGA-adapter for it however.

 

FinApple 2020 (c)
Apple II Forever.

Mitac MATE-1 (AD-1) floppy drive:

front_s

This is a clone of the Apple DISK II drive made in Taiwan based on the same early Shugart 390 mechanism with their own analog board design.

back_s

MITAC MATE-1 (Model: AD-1)
Shugart 390 mechanism
Made in Taiwan 
Stamped date: JUL 20 1982

analog_board_s

Mitac analog board.

 

analog_board_underneath_s

Underneath.

 

mechanism_s

Disk mechanism.

 

inside_shugart_s

Shugart 390.

 

Thanks to Marko Laaaksonen for saving this for all those years.

 

Links:
https://apple2history.org/history/ah05/
https://en.wikipedia.org/wiki/Disk_II
https://archive.org/details/mitac-mate-i-disk-drive

FinApple 2020 (c)
Apple II Forever.

 

 

 

My Nordic Apple /// : Part ///

two_trees_s

These two ///’s are latest additions to my ///-herd. What made this super interesting was that
the other /// had different keyboard with not just symbols on it, but TEXT. I’ve never seen such.
Might be replacement for some program specifially or something?

If you have information about this, let me know. Thank you. Tack så mycket!

keyboard_closeup_2_s
Text in front of the keycap.

keyboard_closeup_1_s
As well in top. Some kind of special localization here.

Naturally i had to check them thru and repair when needed (repair the /// is that really needed?).

a3s1-58712_label_s

Unit #1, Serial A3S1-58712, Made in Ireland. 256k

This unit came with the different swedish keyboard with text on it. I’ve never seen this
anywhere before. it would be interesting to know more about this. This is not an any
early 12v model either. Just regular 5v, 256k model otherwise. This unit had the
Corvus HDD-interface card installed! Thank god, so i can access the Corvus HDD and
look into that as well.

blown_rifa_s

Naturally (heh) the powersupply blew up when i was testing it. Loud noise, smoke
and bad smell. This was expteced to happen. I know… i know, one should always
replace those safely capasitors beforehand….  but. Yeah. Lazyness.
Maybe i learn someday?

Repair log:
-Normal cleaning everywhere.
-Installed new feet.
-Powersupply, new safety capasitors replaced (0,22uF, 0,1uF).
-New keyboard light installed.
-Floppyemu works with adapter (.woz, .dsk)

-The internall disk III wont work: no spin. No even trying.
*Tested with disk II mechanism, no difference.
*Worked with floppyemu
*470uf 10V capasitor replaced to disk III analog board
*220uf 16V capasitor replaced
*10uf 25V capasotor replaced
*ALL IC’s swapped to analog board
= STILL DIDN’T WORK!

small_pcb_s

*Replaced the capasitors to the small pcb behind the disk /// (10uf, 35V) and the
pcb felt like it had something leaked on.. very sticky like Coca-Cola poured on it.
Cleaned, swapped the caps.

*Made new interface cable as well…

ready_and_working_s

…and it WORKS!

.. i think it was all-along the cable! Should have started with that LOL It looked
about perfect but after closer look there were some dent/hole on it. Well it doesn’t
matter, atleast the drive got good cleanup, speed adjustment and other mainantance
done 🙂

While i was at it – i installed the clock/calendar chip and battery holder to it as well
the great custom ROM by Robert Justice that works nicely with the Booti-card allowing
direct USB/HDD boot from diskimage. Amazing. If something good happened in 2020 this is it!

 

 a3s1-56600_serial_label_s

Unit #2 – Serial: A3S1-56600, Made in Ireland, 256k

This one was much easier – no much issues…

Normal cleaning, disk drive working fine (adjusted), swapped an universal power
supply to this unit from an another unit for testing and swapped the safety capasitors
to the original one.

341-0060a-g9_s

Both of these had :

-341-0060A (2kb*8) that is Video scan decode ROM at 50HZ

euro_a3_crystal_s

-1970002 NDK 14.25045 Crystal 50HZ (PAL)

I only get black/white even with the RGB cable…

Problock3 driver and custom ROM by Robert Justice:
https://github.com/robjustice/Problock3

Booti-card by David Mutimer:
https://ct6502.org

FinApple 2020 (c)
Apple /// Forever.

My Nordic Apple ///: Part II

apple_iii_fin_s

The previous repairs ended when the power supply started to no longer provide enough current to boot the unit so i ordered the Univeral Power Supply from Reactivemicro.com as i’ve done earlier as well. That’s the best you can get for your money. It’s designed for all Apple II and /// models. The Apple /// can be so problematic so it’s more than good idea to go the roots of the possible problems and replace that power supply in the first place. That’s where it all starts anyway.

Also needed a replacement light bulb for the power light as it was burned off. The unit CAN  be booted after pressing reset but that’s very annoying at least. Some references say the Apple /// won’t boot if the keyboard “power” lamp is burned, that’s simply NOT true. It does need just reseting the unit.

WHAT WAS LEFT TO BE REPAIRED OR TESTED?

-Ordering and installing the Universal power supply.   
-Rubber feet replacement.
-Keyboard power light bulb replacement.       
-Keyboard top cover repairs. 
-Reparing video chips.   
-Testing the keyboard layout with configuration file. 

INSTALLING THE UNIVERSAL POWER SUPPLY: 
 

rm_upsu_s

I ordered the Universal Power Supply with the new DC-output cable from reactivemicro.com and it arrived in few weeks (with some +24% tax added). It’s very straight forward to install for the ///.

1) Open and remove the basepan (main logic board) and remove the power cable from the main logic board.
2) Open and remove the power supply from the enclousure. 
3) Remove the original power supply and disconnect few cables as per instructions.
4) Install the new power supply PCB, the new power supply unit and attach the new cables as per instructions.
5) Screw the power supply back to the main chassis and attach the new DC-cable to the main logic board.
6) We’re done!

In this case i had to double check few things as the wiring was different than any of the previous /// power supplies i’ve had so i ended up swapping few cables around. But in the end, it worked perfectly.

Only thing that is annoying by design is the DC-output cable that goes from power supply to the main logic board. The opening between the power supply and the “wall” where the logic board is located, is quite small. The memory card connector hits the cable and it’s very tight fit almost damaging the cable itself. I would say that is design flaw by Apple originally.

RUBBER FEET REPLACEMENT:

new_rubber_feet_s

The two front rubber legs were missing so i replaced them with replacement ones. The ones i got from ebay were slightly smaller (but good for the Apple II) so i placed small piece of another kind of rubber sticker under it (cutting it to correct size) and the height was the same. 

 

INSTALLING THE NEW LIGHT BULB:

new_lamps_s

These lamps are available these days only online, atleast i couldn’t find any locally anywhere. Those lamps are  around $1.00 each depending where you buy them. The shipping in the otherhand… that was pricy. But what can you do? One could, if know how, replace them with modern led-lights. I just wanted to have the original style replacement at this time so i bought 10 pack of original Sylvania 7328 6v 0.2A bi-pin lamps.

keyboard_opened_s

It’s very easy and straight forward job – first need to remove the keyboard cover by just removing 5 screws underneath the keyboard and lifting the top of the keyboard part away.

lamp_removed_s

Removing the old lamp is easy, just pull it. It comes off easily.

new_lamp_installed_s

Replacing the new one is slightly more difficult as you really can’t see anything. Just push gently the new bulb in as straight as possible. The legs might get bent easily so get them straightened if needed. Replace the keyboard cover after you’re done.

I notised the keyboard cover was bit in “suffered” state, meaning the holes where the screws go (plastic pilars with hole on them in middle) had broken off from the right. Those would need fixing somehow or replacement cover. 

 

…EASY. BUT

power_and_j20_pins_s

As i had opened the /// several times over the weeks, last time i had put it together i had ACCIDENTALLY installed the DC-cable to J20 connector for some odd reason… so it would not power up. Now that’s not good! So i installed the DC-cable to correct connector (it DOES read “POWER” on PCB..) and powered it up, it DID power on but it did not display any video on LCD and very distorted image on very right side of the CRT monitor as well. BUT it did boot software so far i could see. So it’s not totally busted! We have (new) hope..

 

REPAIRING. AGAIN. (get used to it, it’s Apple ///):

page_506_small

Thanks to technical assisstance at Facebook’s Apple /// group, i was suggested to replace the first chip on line,  74LS153 (0.58€/ea locally). So i got few and replaced one. Sadly that didn’t help but i was very kindly assisted further looking into other chips in that line:

U90: LS153 @ L8 dip16 74LS153
U119: S175 @ B12 dip16 74LS175
U141: LS00 @ H2 dip14 74LS00
U146: S86 @ B13 dip14 74LS86
U147: LS11 @ K8 dip14 74LS11

Swapping these however did not help.  I had bought few more chips but didn’t test them at the time. 

Something odd happened! Later, after a long period of time, i tested the machine again, with different monitor and … it worked. WTH? What just happened? I am not sure if actually swapping the chips helped or something else happened. The “new” Samsung LCD/TV does better NTSC even not  perfectly correct colors however. But – i’m not complaining.

On thing i noticed (finally) however:

The European /// have (naturally) different crystal (50HZ) 14.25045/1970002. Making it NTSC/50HZ so that explains why no colors on most displays. It uses Video chip : 341-0060-A (instead of 341-0030-A in North America)

341-0060 – III – ROM 2kb*8 – Video scan decode ROM 50 Hz
341-0030 – III – ROM 2kb*8 – Video elements/attributes generator

https://kb.pocnet.net/wiki/Apple_Chip-Bezeichnungen

 

TESTING THE SWEDISH/FINNISH-KEYBOARD LAYOUT (configuration file)

testing_keyboard_layout_s

As this is Swedish keyboard model (same as in Finland) i thought to see how the localization works with SOS. I booted the SOS Utiltiies and with SCP i loaded up the language/keyboard configuration and saved it. It’s fun to see those ÅÄÖ on screen even i prefer US-layout in a long run. Happy to see Apple did put effort on localization this much. This leads me to thinking, there problably never were any Apple /// original manuals translated to Finnish?

Works in any SOS disk with SOS.DRIVER file on it and the driver added naturally.

Fully functional /// – is that even possible?

So after all the trouble, goofin’ around and repairs, the /// seems to be working fine. My herd of ///’s have grown since i started this article – so more repairs were ahead with two more of these. Luckily slightly easier.  /// is great machine with lots of potential. It’s great shame no more homebrew hardware/software have been released to it over the years. 

What still i haven’t figured out is that strange “humming” noise that most if not all, Apple ///’s make. It feels like it comes from the speaker… but why? Or is the the grounding in PSU causing this? 

 

FinApple 2020 (c)
Apple /// Forever.

Apple II clones: “BOSS-1″ – Multi-System Personal Computer” – Part II:

 

board_with_z80_installed

The original power supply let the magic smoke out of itself and is been repaired by a fellow hobbyist. Meanwhile i took a power supply from the Apple //e clone that came built inside a IBM 5150 XT styled case as the pinouts were the same.

rom-card_for_boss-1_topside

I also got the original BOSS-1 ROM-card from Juha Seppänen of https://kakkostyypinomenat.blogspot.com a while ago. I dumped the ROM contents and they are now in Asimov archives if somebody needs them.

bad_ic_s

I inspteced visually the chips on board, pressed them down, cleaned some and swapped some as they had rusty legs on them. Luckily i have few clone boards that are great for donating parts now..

 

fixed_trace_s

There was some broken trace close to Slot 7, but it was reapaired earlier on. So i didn’t touch it.

 

boss1-rom-card_s

The BOSS-1 manual says to my understanding, that you can boot the BOSS-1 two ways:

-ROM-card installed to system slot that is the slot 0
OR:
-ROM-chip installed to location U6 that contains the “OS” (Applesoft) that should start an boot menu when unit is booted.

M.S.P.C. VAR 4.1
1) FP BASIC
2) Z-80 CP/M

So it’s basicly a boot-menu, after choosing what you want to use, you insert the floppy and press 1 or 2.

-First i tried with just the ROM at U6, but nothing, buzzing sound and garbage on screen.
-Then WITH the ROM-card, with the same results.
-Last just the ROM-card installed and the unit booted fine to text on screen “BOSS ][“.

When i got this unit in the first place, it came with the ROM-chip at U6, no Z80 CPU but a cloned Apple ROM-card with 6 x Applesoft ROM chips and it naturally booted “APPLE ][” on screen before the power supply releated the magic smoke (it wasn’t just the typical RIFA’s). But really it doesn’t matter, i’ll keep the original ROM-card in Slot 0 as it’s not a big deal.

boss_1_cpm

As i had some loose clone boards i removed one Z80 processor and installed it in BOSS-1 and CP/M 56k booted without a problem.

 

 

HARDWARE TESTING:

boss-1_setup_s

All ROM and RAM were OK. Colors are very vibrant when using JVC PVM 9″ CRT and not so much with a modern LCD. The colors when using modern LCD are hossibly ghostly, black & white.

50-60-hz_pads_s

The board is 60Hz NTSC. It’s pretty clear that your luck with Plus era Apple II’s and LCD’s is really depend of the model and maker of the display. I’ve not been able to get my Apple II PLUS units output colors with just swap of the crystal. 

Tested few cards to see how this clone would work as the ROM-card might cause issues etc.

 

RAM-cards:

saturn_multirom_cards_s

As the ROM-card needs to be used, there’s no ROM in main logic board, RAM cards do not work well. I tried with the original ROM card and Saturn Reboot 128k card as well original 32k RAM card but it didn’t work at all.

locksmith6ramcardok_s

Only with David Mutimer’s MultiROM card and Saturn Reboot 128k i was able to get 16k RAM card functionality, by installing the 128k card in Slot 0, and the MultiROM card in Slot 1 (Applesoft).

80-column card:
I had boxed clone 80-column card so i installed that. The monitor i used (9″ CRT) is quite small so it was difficult to read the text, but it did work. 

total_replay

Booti (ProDOS HDD-emulator)
Slot #6, booted Total Replay hdd-image succesfully and played some games. 

accelerator_s

Accelerator II (clone) 65c02@4MHz
3.58MHz, Slot 0 = MultiROM (Applesoft), Slot 1 = Accelerator II (clone), Slot 6 = Disk II interface + wDrive.


Game Controller DIP16:
There’s regular, standard DIP16 game controller connector on board where you can install the paddles or joystick.

 

 

FinApple 2020 (c)
Apple II Forever.

 

 

Bebek Electronic catalog 1-3/1984

catalogs_1_3_1984_s

I found these Bebek Electronics catalogs from online auction site for few euro’s so i naturally just had to get them. I saw there were few ad’s about BOSS-1 clone that i have, so i was super excited to obtain any additional information about the model and it’s history. There’s so little information of anykind of this model.

 

Brief Bebek Electronics history:

“Bebek Electronic began operations in Lahti in the mid-1970s, when Resit Bebek, who first moved from Turkey to study in Germany and came to Finland after graduating as an electronics engineer with his Finnish wife, did not find a job elsewhere”.

– Then I had to try it myself.

“From Lahti, operations gradually expanded to Helsinki, Tampere and Kuopio. In addition to the four locations, supplies are  currently sold in the company’s own Bebek.fi online store”.

Some interesting ad’s from those catalogs:

boss-1

BOSS-1

boss-1c

BOSS-1c

 

hitachi_compact_3inch_drive

Hitachi 3″ compact floppy disk drive. These were sold in here in Finland in few places. I have one as well. The 3″ format itself wasn’t really popular, it was used in Amstrad computers in UK. It works as any floppy drive with Apple II, regular Disk II interface card will do. It’s dual sized.

cards_for_boss_mack64 cards_for_boss_mack_apple

Some cards they sold for Apple II and clones (MACK-48, BOSS-1). I assume those cards were also clones from Taiwan/HK.
I’d like to find that 6809-card long with the FLEX-OS they bundled it with. There were 6809 card made in Germany by IBS as well.

cards_for_apple_ii

These cards look clones as well to me.

boss_1_ad_3 boss_1_ad_4

boss-1_ad

boss-1_offer_for_businesses

Different pricing for companies. They also sold AMDEK monitors.

minifloppydrive

They carried also Teac half-height floppy drives.

 

 

BOSS-1 information + link to my blog:
https://finapple.hho.fi/finapple/index.php/2019/02/24/apple-ii-clones-boss-1-multi-system-personal-computer/

Link to full resolution scans at archive.org
https://archive.org/details/bebekelectroniccatalog1984

About Resit Bebek (In Finnish)
https://www.sahkoala.fi/ammattilaiset/artikkelit/yritys/fi_FI/elektroniikka_ei_enaa_kiinnosta_nuoria/

 

I am very interested finding more about the BOSS-1/BOSS-1C computer so please contact me if you have anything about BOSS-1/1c.

Also interested if somebody have more of these Bebek Electronic catalogs from 1980’s.

FinApple 2020 (c)
Apple II Forever.

Apple II Plus Clone: ABC

white_slots_s

This Apple II Plus clone i got in 2018 :  https://finapple.hho.fi/finapple/index.php/2018/11/20/once-there-were-apple-ii-clones but actually never started working, cleaning and testing on it untill now.

board_wired

“Made in Japan” Is printed on the motherboard but this style board can be seen used in lots of different “branded” clones and cases. I had the original NTSC/60Hz 14.31818 crystal i.e. not been modified to european 50Hz usage.

I was also modified with 3 wires to slot 7. I hoewever removed those, but documented it carefully if for some reason that needs to be recovered.

 booted_with_wires_attached

With the wires still attached i could not get correct colors out of it. The display i used does NTSC so it wasn’t the display issue.

wires_removed

After the wires removed i got the correct colors.

karateka_gfx_oddity_2_s

With the wiring removed i could see odd patterns (boxes) instead of “lines” as it should be. What is going on here?

color_test_4

The colors look ok with Samsung LCD/TV with composite/scart adapter. Slight waving color inference on screen specially on BLUE color  as well with white balance etc. Looks like inteference of somesort.

no_color_with_pbvm

No colors with my JVC 9″ PVM monitor either. 

 skyfox_white_very_lowq

The white is dispayed oddly.

broken_plastic_s

The keyboard was cleaned and the spacebar fixed. One out of two small plastic holders for the spacebar metal bar wes brolen and replaced from another clone keyboard. Luckily i had kept that. The keyboard is quite good guality and easy to write. Much better than some of the clone keyboards used with Europlus’s.

keyboard_repairing_s

Borrowing parts from an another clone keyboard.

 

chip_in_wrong_socket_s

Swapped some chips… but it’s always good to use correct chips 🙂

apple_ii_plus_clone_abc_s

Added a own label to the lid “Chipper”. It was computer shop back in 80’s in Finland. I though it would be proper and period perfect. Even in reality most likely some cheaper general electronics store would have sold such clone over here like Bebek.

FinApple 2020 (c)
Apple II Forever.