Apple II

Need a card identified

Submitted by CWJ_Wilko on March 14, 2017 - 12:48am

Managed to sweep up a trio of cards on eBay, including the Z80 card I was holding out for. Got a good price on it, would have paid that much just for the Z80 card alone.

So it's a Z80 card, a Disk II card and.. a mystery card! The D27160 is an EPROM but beyond that I have no idea. There is a two pin connector on the card that resembles the Apple II speaker connector - is it a sound card?

IMAGE(http://i67.tinypic.com/2uh2xon.jpg)

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Apple II

Is this real?

Submitted by wishtoknow on March 13, 2017 - 1:00am

In the GS/OS Reference Manual, Chapter 10
is about Handling Interrupt Signals.

If none of the interrupt handlers accepts a given
handler it becomes an unclaimed interrupt.

Seems pretty strightforward right?

But there are possible causes for unclaimed interrupts
and I kid you not. This one caught my attention:

random transient phenomena such as cosmic-ray or

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Apple II

Sick Laser

Submitted by evank on March 10, 2017 - 8:42pm

Laser 128 stopped making the start-up beep (nor does its FDD activate) and the screen looks like this:

IMAGE(http://vcfed.org/evan/laser/screen.jpg)

Ideas?

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Apple II

How to open a IIe/IIc joystick?

Submitted by Drignor on March 10, 2017 - 7:36pm

Anyone know how to open one of these things? It looks like these little plastic screws are the thing I need to get out, but they don't seem to move up at all when I loosen them. I don't want to break anything so I figured I'd ask before wrenching the thing open.

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Apple II

New Apple Z80 cards

Submitted by CWJ_Wilko on March 9, 2017 - 12:09am

Has anyone seen these before? Just popped up on eBay for me, I've been looking at the cheapest possible solutions to getting CP/M on the Apple II:

http://www.ebay.com.au/itm/CP-M-Turbo7-Z80CPU-Softcard-compatible-/282285028146?hash=item41b97fb332:g:VtwAAOSw6n5XtqTm

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Apple II

Need some help with Audio zap

Submitted by PINKBOY1006 on March 7, 2017 - 9:52am

It wont Vwerk!

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Apple II

Apple //c volume pot (did a bad one)

Submitted by CWJ_Wilko on March 6, 2017 - 4:57am

I've snapped my Apple //c volume pot when trying to 'repair' it. I have a nasty habit of making things worse before they get better. Does anyone know if there are any drop-in replacements? The plastic knob itself is fine, so I might be able to find something local or online that is close enough.

Does anyone know what resistance range that particular pot had?

I'll put in a request on the WTB forum just in case anyone has a genuine spare.

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Apple II

A little applesoft program for children and non how to learning basic

Submitted by Toolkitman on March 4, 2017 - 1:45am

This is a little program i have made, it's an infinite loop banner watch the following and type it to your apple ii or apple ii emulator:

10 HOME
20 SPEED=150
30 PRINT "WELCOME TO MY NEW INFINITE LOOP"
40 GOTO 10

press RETURN and watch wath happens!

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Apple II

Use modern graphic file on Apple II

Submitted by evank on March 3, 2017 - 12:29am

Suppose I have a .jpg or .png or whatever, and I want to display it on a color Apple II monitor. Is there a procedure for this? If not, then what about converting the image into 40-column ASCII text?

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Apple II

II europlus crash after a few minutes

Submitted by falen5 on March 2, 2017 - 7:44am

Another strange problem
My II europlus crashes 1 or 2 minutes after I power it up.
If I keep at it (switching it on and off, reseating chips) it ends up not coming on at all, just a screen of random characters , as if there is a ram problem.

Spent a few hours last night and gave up. Just could not get it to boot at all

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Apple II

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