tregare

got a box o joysticks from Bodyshots, Was shipped promptly and packed well.

damn, if i only had the scratch...

larry, are you using the adaptor?

could only find one other reference to those drives, someone said they were 810 drives in a metal case with the archiver add on

i use a g540 for most things these days, it even programs gal chips

74HCT, the HC is high speed cmos, HCT is high speed cmos, ttl compatible

you're right... i found info online...

ok, which of the 2 x?m printers is the better? xdm or xmm. i know nothing about them....

yup, james was kind enough to provide scans, i did ocr and manual editing on them to fix ocr problems. currently i am working on a parts list i will be inserting into the indus FSM.

is there one like this for the 800?

-begin memory dump- all mfm/rll drives are rll, rll stands for run length limited iirc, if i remember right, mfm is rll 1,3 and what was called rll was rll 2,7. the main difference between the 2 is the speed/frequency (it is one or both) of the datastream. 'rll' was 50% faster and/orhigher freq it does not require any more accurate mechanism than 'mfm' it needs a read amplifier and write amplifier that can handle the datastream, i salvaged many "dead" st225's that had been run on a 'rll' controller and failed as i could remove and replace the amplifiers and add heat sinks and compound to them. then there was arll from perstore(sp) it promised 90% capacity increase on a mfm drive but was better at burning up mfm read/write amplifiers than running a mfm drive on a rll controller. -end memory dump-

i think the reason you saw duplication upgrades for the atari drives but not the indus was the processor in the device, where the atari drives use a cost reduced 6502 compatible chip, the indus uses a z-80, and while assembly for most 8 bits is somewhat similar, it is different enough to cause a programmer issues, not to mention hardware differences in the different cpus.

another indus gt to replace my 2nd one that seems to have vanished.

have you checked out http://forums.arcade-museum.com/archive/index.php/t-217250.html

check voltages and capacitors.