Apple II

II+ power supply voltage checking

Submitted by Fuji on October 3, 2019 - 9:23am

I'm trying to get an Apple II+ clone fully working (it boots up like it should, but there's no response from the keyboard -something I'm looking into, suspecting the keyboard itself needing repair). However, there are some other things worth considering like the power supply output. With the computer switched on I measure these voltages:

 

- 12.009 V+ 11.480 V+ 4.998 V- 5.033 V

 

My concern is the +12V line. Is it too low? if it is, what action will likely remedy this?

 

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Want to burn Vulcan 2.0 (Gold) Rom. What equipment do I need?

Submitted by william_tell on October 2, 2019 - 11:26pm
I have a Vulcan drive and card. The Rom chip is labeled Vulcan 1.2GS. I would like to use the Gold rom BIN file and make my own 2.0GS rom. I have never worked with eeprom etc. What equipment do I need to “burn” my own Vulcan Rom?
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Apple IIgs RGB Monitor Runs Hot

Submitted by TobyJennings on October 2, 2019 - 10:45am

I have an Apple IIgs setup that I would use more if it wasn't for the monitor.

 

It's the AppleColor RGB A2M6014. It works okay, though some of the geometry could use improvement, but it runs too hot.

 

By "too hot" I mean that after it's on a while, I can smell the hot electronics, unlike every other vintage CRT I have, and soon after that I can smell the hot plastic of the shell. It's not pleasant and doesn't seem right.

 

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Apple IIe Platinum NTSC boot displays hatch pattern /no beep?

Submitted by body_Infinity on October 2, 2019 - 9:26am

Hi guys hopefully i can get some direction to get our Apple IIe platinum (607-0288) International NTSC back to life.

 

Was in storage for a few years now when i turn it on - no beep and we get a hatch display with squares? Thick lines horizontally & vertically? Trying to run self diagnostics we get PP randomly with again a hatch pattern but with characters?

 

Power light is on

HAL 16R8CN chip gets hot?

Replaced CPU with a spare known working - no change

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Books on Apple II (and others)

Submitted by kaffee_ph on October 2, 2019 - 7:29am

Hello,

New member here.

I was wondering if someone might know anything about the books below which we found while decluttering? What are they, what are its significance (if any), etc.?

I did a search earlier for Fred White (the author of one of the books) to know more about him, but wasn't sure which of the results besides the ones that come up on Amazon but with incomplete biography, was him.

Also, the Applesoft Tutorial book is unlike those I see online, most of which are spiral bound while mine is paperback.

Any input is greatly appreciated.

 

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Apple II

Error copying files from Vulcan to ADTPro Virtual drive

Submitted by william_tell on October 1, 2019 - 10:17pm

I have an Applied Engineering AE  Vulcan 40MB in a //gs ROM 1.   I know the hard drive will not last forever, so I wish to make a backup image of it.

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Unknown card

Submitted by cernorama on September 29, 2019 - 6:47pm
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Apple II

Hand-built by Woz Disk Controller

Submitted by macnoyd on September 28, 2019 - 8:13pm

A travel through time for those interested in the history of the Disk ][ ...

One of my long-time goals was to try and replicate the Disk ][ controller that Woz originally designed.Part of it was the challenge, part was to see what Woz went through and the differences thatthis board has from the production board produced by Apple.

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Apple II

So I bought this mint Rom 3 //gs off ebay....

Submitted by Lee Adamson on September 27, 2019 - 4:41pm

... and I sent the seller specific packing instructions, citing previous extreme damage I've had during shipment of improperly packed similar equipment.

 

Well, they did write "fragile" and "this side up" on the box (even though the monitor was packed face-down), but that was it.  There was a handful of packing peanuts in the bottom of the box, and a loose half-sheet of bubble wrap on top.  The equipment was just loose in the box, with no padding or support whatsoever.

 

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Apple II

Apple IIgs dithered backgrounds

Submitted by Punkyclown on September 27, 2019 - 3:37pm

Hi  All,  I have noticed that all the IIgs backgrounds and Disk drives and scroll windows are all

dithered, and they look awful.  Is ther someway I can turn off the dithering or put smooth 

backgrounds on the OS?

 

Thanks,

 

Brad Hansen

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