Apple II

Getting a DuoDisk unit working again...

Submitted by joel_graff on December 28, 2019 - 3:23pm

I came into posession of an Apple IIe with a DuoDisk unit.  It sat for years in a barn and is caked with mud dauber nests on the inside.  As I'm cleaning it out, I've torn down one of the two DuoDisk drives and I want to establsih two things:

 

1.  Whether or not I need to do the DuoDisk mod to the analog board

2.  How to test the stepper motor before putting everything back together.

 

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Apple II Plus Power Supply Failure

Submitted by Samuel Pickwick on December 28, 2019 - 2:03pm

I powered up my Apple II Plus for the first time in probably over a decade last night (which I bought new in 1980). After running for a while a burning odor was detected; I shut off and uplugged the unit, removed the cover, and detected a thin stream of smoke coming out of the power supply. Is there a list of compatible and available new supplies to be used as a replacement? I was going to survey the damage but could not easily/quickly remove the p/s cover, it seemed like it was welded shut.

I appreciate any advice!

Thanks.

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Apple II

Apple ][ europlus PAL card issue.

Submitted by CheshireNoir on December 28, 2019 - 5:47am

Hi All from this Oz Apple II owner.

I've just got my first Apple II. It's a Europlus, with the Language card in slot 0, an I/O disk card in slot 6 and a PAL card in slot 7.

 

I've got the disk drives working (Had to make a 19 to 25 pin adapter as that had gone missing) and I've fixed the bootup garbage issues it had (It was the 6502 of all things! I popped it out of the socket while looking around for faults and the pins were black. Some Deoxit and a hard eraser fixed it up a treat) but my Google-Fu is failing me with the final issue.

 

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Apple II

PC Transporter - IIe Keyboard Adapter

Submitted by Moonferret on December 26, 2019 - 6:18am
Hi Folks! I've recently aqquired an AE PC Transporter. I've managed to get it running just fine in my IIe but I have to use an external PC keyboard. There is an adapter that allows the use of the internal IIe keyboard but I am missing this part. Does anybody have one or even a schematic for the board (Looks to be pretty simple) Here is a photo of a Transporter. The board in question is the one in the top left.
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Apple II

Mystery SPCL Rom for keyboard.

Submitted by NovellNetware on December 25, 2019 - 10:45pm

As posted from another user. I found a different keyboard rom in an apple. This apple had the shit key mod in it. I was wondering how I found out what it does.

 

Product info on sticker.

Vision 20 by vista 1.0 .

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Apple II

RIP Chuck Peddle: Father of the 6502

Submitted by MacFly on December 23, 2019 - 4:42pm

Sad news - only saw it now: Chuck Peddle, the "father" of the 6502 CPU, has died:

https://wdc65xx.com/in-memoriam-of-chuck-peddle/

 

With his idea to create an "ultra-low-cost" 8-bit CPU (for only $25), creating a whole new market for personal/low-cost computers and the business of mass-producing CPUs, he has certainly permanently changed the world - for the better!

 

So, switch on your Apple //s (and ///s) and make "his" 6502 spin for a few extra cycles in his memory!

 

RIP

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Apple II

Graphic printing with printshop and okidata problem

Submitted by NovellNetware on December 22, 2019 - 11:30pm

Configuration:

Apple II+

Orange Graphler Plus

Okidata ML 82A

 

1. So I didn't think any of the dip switches got change on the printer card or printer.

2. I was able to print from Apple write just fine. So I have decided to do something I have never done before on a apple II plus.

3. Print shop and graphics.

4. Test printing. First only printed Welco. Then I tried another disk image and it printed welcome to printshop.

5. Problem All the lines are spaced like auto LF is on after CR.

 

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Apple II

Apple IIc Plus video problem

Submitted by phoenix1031 on December 21, 2019 - 9:34am

Hello, I recently got this apple IIc Plus. When I turn it on, the screen shows characters in red/blue color instead of white.

It sometimes shows white characters, but after a few seconds, it switches back.

How can I fix this? Please help me.

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Apple II

Apple ][ Slot 3 video card with HDMI output

Submitted by barryhills on December 17, 2019 - 5:03pm

I'm exhausted trying to integrate the piece parts needed to get VGA on my Apple ][e  

 

Instead of my non-working solution outlined below has anyone done a HDMI video card for Slot 3 (IE an "80 column card")?

 

what I have now is .....

 

vga monitor

^

GBS 8220 (VGA)

^

BIT-C128 DAC (RGB)

^

IBM CGA (digital)

^

Color Link Card from Applied Engineering

^

Ramworks 3 Card from Applied Engineering

^ 

AUX Slot

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Apple II

Strange formating / adtpro issue.

Submitted by NovellNetware on December 16, 2019 - 9:40pm

I don't know if I have a bad drive or disk to old or what.

 

So when I got the apple back in July it would not boot off of any disks. After a cleaning. It stated working like a champ. So I used the same disks over and over again and then they stopped working. These disks you could see now was worn out with groves it in. No problem vintage 1980's disks. So I decide to grab some more disks. A good old original disk would boot just fine. A true blue apple disk.

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