Apple II

6551 board schematic - capacitors not on schematic?

Submitted by Lee Adamson on October 13, 2018 - 10:27am

Hey folks.  :D  I am getting ready to (try to) assemble a 6551 board to interface to the Rpi, since I have no super serial card and the A2pi board is out of stock.

 

So, on the schematic for the A2pi here: http://schmenk.is-a-geek.com/wordpress/?p=88

 

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Apple II

Recommend me a Composite-to-HDMI converter?

Submitted by Lee Adamson on October 12, 2018 - 10:24pm

Hello, everyone.  Quick-ish introduction: I'm Lee.  Pleasure to meet you all.

 

In going through my dad's estate, I recently unearthed the Apple ][e from my childhood, which he bought new in 1983 and we learned to program on together.  I figured he'd thrown it away long ago, but there it was in the back of a closet.

 

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Apple II

Help Recognizing early Apple II PSU

Submitted by drakepirate on October 12, 2018 - 7:20am

Hi,

I have this Power supply but don't know if is original or a Clone. Outside stands it's 115V/ 60Hz, but inside has a RFI filter 230V/ 50-60Hz

It's an A2M001 and 820-0003-01 is written on the PCB.

Thanks.

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Apple II

Engineering notebook for Apple IIGS

Submitted by Waterbug on October 10, 2018 - 4:48pm

I was tossing old stuff and came across my old engineering notebook from 5/89 to 3/90 when I quit Apple. So it's things I was working on after the IIGS shipped. Basically what an extension of Taskmaster would be, or bring the concept of Taskmaster to the Mac. There's some stuff from after being at Apple.

 

Before I toss it I wanted to know if anyone collected such stuff and wanted it. 

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Apple II

Bigger monitor for IIgs

Submitted by retrobyte12 on October 9, 2018 - 9:02pm

I was wondering, what's the most popular option for a bigger RGB monitor for the IIgs? I have the original one, but it's just a tad too small... I'm thinking of using a Commodore 1084S, but I'm not sure if the picture quality compares...

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Apple II

Apple II Terminal Emulation on a Mac

Submitted by Byte Knight on October 9, 2018 - 5:12pm

I've got the ZOC Terminal program really dialed in for my MacBook so it feels like an Apple II.  It's a fun and easy way to get on the Apple II BBS's.

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Apple II

Quickloader Reboot

Submitted by David_M on October 8, 2018 - 3:11pm

Some of you will be aware I started work on designing a more compact verison of the original Quickloader card.Macnoyd did the hard work and created a schematic of the original card for me to work from.

With that schematic I put in a solid 3 hours work created a new smaller, low chip count design  and board layout.

Well tonight I kicked in another 5 hours and wrote the GAL rules that will pull it all together and make it work.

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Apple II

Odd Character ROM - Apple //e Platinum (dump inside)

Submitted by TedThompson on October 8, 2018 - 1:48pm

This ROM appeared in a logic board I bought.

 

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Apple II

WTB KR9600-PRO

Submitted by TedThompson on October 5, 2018 - 4:01am

While I can't be 100% sure, it would seem having an AY-5-3600-PRO in a socket for a KR9600-PRO would not be a good idea. Never the less that's what I have and I'd like to put in the correct part before I continue troubleshooting this mobo.

 

Anybody got one?  Anybody know a reputible source (I've heard there are re-labled forgeries out there)

 

Oh and something that doesn't ship on the slow boat from China preferably... :)

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Apple II

Apple IIgs with bad onboard ram?

Submitted by thephred on October 5, 2018 - 1:43am

Hey guys! I have been getting more and more excited about Apple IIs for a bit and I finally broke down and bought a IIgs on Ebay. It arrived and I set it all up and played with it a bit today. Turns out it is a Rom 01 with a 1Meg memory expansion card. As I played with it I noticed two things:1) There is a line in the middle of this screen that shows up only when text or graphics other than the background color intersect it. It shows up on the RGB monitor as well as the composite port.

2) It crashes when loading some software.

 

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Apple II

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