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have you considered 3 d printing them.... easy enough to make.

I guess I had failed to mention the 3 days of troubleshooting I performed on it, and yes it spins, just the internal sensor is buggered,
no worries I tossed it and used another MFM 20mb I had on...

thank you to dalforth to pointing me into a source of motherboard descriptive that had my system listed. (good web site btw)
...

It is easy enough while your there you can do either two things, replace the current cord with a Home deport power cord (look in electrical you will find a "replacement cord"
or update it to use a...

So I have miniscribe model 3650, basically, when performing the debug low-level formatting I get error 80, so I slapped a LED on it and a blinking error code 4 error "Inde Pulse not detected during...

Does anybody own a "Leading Edge Model D"?

I am looking for documentation on what the mainboard video outputs are, I know one is monochrome and the other colour and capable of being selected with...

I grabbed it.
will be archiving disk and manual on arrival

answer found in a review in the magazine: ANTIC VOL. 3, NO. 3 / JULY 1984

RM1000 RADIO MODEM
Macrotronics, Inc.
1125 N. Golden State Rivd., Suite G
Turlock, CA 95380
(209) 667-2888
$239.00
...

its can do it because even at the time TRS-80 recognized this very fact in the user manual (as most people no one reads it before turning on their computer and even less nowadays. but here..
it is...

of course, you can run FREHD from a model 1 look right here http://members.iinet.net.au/~ianmav/trs80/emulator.htm

so instead of making T-Shirts saying "Radio Shack", we just need to make them that say "kcahS oidaR" so it only says radio shack in a mirror :)

well, it would seem the first action of the owners of radio shack is to find trademarks infringements, put an end to them, I had this little "radio shack sticker" side (that make me a whopping...

well, it ended being the MFM bios controller, I swapped it out for another and error stopped happening.

Could it be just a VGA vs MFM controller conflict? (trying to source an MDA to VGA converter to use the onboard video.)
I did find this......

well I do have 2 other 8bit mfm controller , as well as a scii 8 bit AHA controller with drives I could try

1. Keyboard, no switch, and the only markings on the underside of the keyboard is BTC-5369, which I believe is an AT keyboard. I will have to look into another keyboard of this AT2XT conversion...

So at an Estate Auction, I scored a Leading Edge Model 4, 8088 with 786K ram a 360kb floppy an MFM hard drive.
I also grabbed a leading 3edge keyboard on eBay but according to the computer there...

I saw a device that is basically a "gotek" but for the cassette port. so its a cassette player replacement using an sd card for files storage.
As for price, I have not looked into it, but here are...

you have been baptised by the rifa smoke gods... :)

yeah replace all three easy to find them typo .22uf rifa x2 and you should find a modern replacement.

Basically

TRSDOS 1.3 can only read itself
Smal-Ldos 531, LDOS 531 and 631 can read each other and write
TRSDOS 6.2 and LSDOS 631 can read each other
Multidos is the only one I know that can...

thanks for making sure, but I am quite positive.

Aside from the obvious of testing PSU output power,

I would look at C54 on the motherboard, make sure it is the right value. should be 22uf, I have seen fail as low as 27uf and cause what you...

looks like a contender :) might want to peek at C21 as well

could you test the C20 capacitor value for me? looking at the rest circuit if this is bad (seen this on model 3 reset circuit) all you get is boot up garbage. ) it directly below the FDC connector
...

Trying to help out someone that is acquiring a Tandy 1000 SX, its missing a bios chip on the board, can someone with a sx tell me whats chip the bios is composed of, and if anyone has the code to...