Apple II

Questions about Applied Engineering Ramfactor

Submitted by Sid6.7 on May 10, 2026 - 4:09am

Hi all.

 

I’m looking for some technical details regarding the Applied Engineering RamFactor. I recently picked up a board along with its RamCharger module. The card is currently installed in slot 5 of an Apple IIgs ROM 03. I also have an Enhanced IIe available, but I haven’t started testing on that system yet. Slot 5 on the IIgs is configured as YOUR CARD. The board appears to be functional even under these conditions. The RamCharger is currently disconnected, so no tests on that yet.

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Odd Laser EX Issue

Submitted by nick3092 on May 8, 2026 - 7:45pm

I recently acquired a Laser 128 EX. It came with the 4.5 ROM, but supposedly 6/6.1 have some improvements for Smartport devices. So I burned a copy of 6 and installed it. Oddly, it completely broke Smartport and 3.5" drives. Thinking maybe this 6 rom was bad since it seems hard to find and may have been a bad dump, I burned a 6.1 (which not a fan of since it boots in 3mhz mode since the EX lacks the NVRAM of the EX2 to remover what default speed should be). 6.1 also wouldnt read my FE in 3.5 or SP hard drive mode. Put the original 4.5 ROM back in, worked fine.

 

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fleXrom from JD Micro

Submitted by jeffmazur on May 7, 2026 - 11:33pm

 

The fleXrom is basically a universal ROM replacement for almost any 2K ROM found in an Apple II computer. Choose between 64 different images and can be configured to replace either a 9316 ROM or 2716 EPROM. Use it to fix a machine with a bad ROM or to change the F8 ROM, Text ROM, Keyboard MAP ROM, etc. See JDMicro for complete details. Available for $29 from MacEffects

 

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DuoDisk drive 2 unresponsive

Submitted by okto on May 6, 2026 - 7:44pm

I have a DuoDisk where drive 1 works perfectly, but drive 2 does not respond. No motor movement, activity LED doesn't even light. If I plug the second drive mechanism into the analog board as if it were drive 1, it works perfectly, so it seems like xomething in the drive-selection logic on the analog board isn't working right.  

Is there a likely culprit for this behavior, and how should I start diagnosing?

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RAM chip replacements

Submitted by Thlorian on May 4, 2026 - 11:06pm

I see a lot of fans in Apple vintage groups not liking MT Ram chips .. what are some of your recommendations please for ones that are considered better then MT to replace on an Apple IIe??

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Apple II

8-INCH interface cards developed for the ITT-2020

Submitted by YLG80 on May 1, 2026 - 7:30am

Here are two 8-INCH disk interface cards developed in the apst for the ITT-2020.

As far as we can read on the EPROM on the final release card, it was developed by NovoComp Datensystems GmBh in Germany.

I have only found the former address of that company:

Novocomp Datensystems GmH,  Walramsneustr 9 ,D - 54290 Trier ,Germany

 

Here is the released

card :

 

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Apple II

SSM parallel card info?

Submitted by bobclark86 on April 28, 2026 - 3:34pm

I picked up an Apple IIe (early 1984 by the board and chip dates), and it included this card along with a much later 80-column and an age-appropriate Disk II controller. The card came with a 26-pin cable plugged into it with a Centronics connector on the end, so I'm sure it's a parallel printer card. I found a copy of a ROM dump on apple2.org, but no documentation. 

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