ColleenLover Posted December 28, 2021 Share Posted December 28, 2021 Friends, can someone tell me..... I am aware that the 1050 cases (shells) are different between the Tandon (Singapore) and Hong Kong (World storage) versions of the 1050 drives. (You cant fit one drive into the other case (wont align properly).. But... What about the electronics? Is it safe / possible to swap the 1050 motherboards between the drive mechs? Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted December 28, 2021 Share Posted December 28, 2021 Edit: Yes mechanisms can be swapped, with respective ROM swap if swapping between Tandon/WST. Mix & matching 1050 motherboards & drive mechanisms is generally not recommended, as there is factory calibrations done on each motherboard for the WDC controller specific to the mechanism that was originally paired with it. If you need to, the calibrations necessary require an oscilloscope to complete. See this thread for the process: Otherwise, the electronics are similar, but the ROM for the WST drives has different stepper encoding specific to the WST mech for proper alignment (ie a tandon drive with a WST ROM would result in a 1/4 track mis-alignment, and probably too-fast a stepper speed to work with it's stepper motor). I think there may also be a variance in pinout of the headers that the drive mech attaches to at the back of the drive... (ie write protect) Some drives also have the newer 2797 WDC controller, which is incompatible with the WST ROM, and requires Revision L for Tandon drives only. I'm also not sure if the actual motherboard layout is slightly different to prevent it from fitting into a Tandon/Made in Singapore case... Quote Link to comment Share on other sites More sharing options...
ijor Posted December 28, 2021 Share Posted December 28, 2021 3 hours ago, Nezgar said: ... as there is factory calibrations done on each motherboard for the WDC controller specific to the mechanism that was originally paired with it. The FDC calibration is chip specific, not mechanism specific. There is no need to re calibrate the FDC if you change the mechanism, only if you change the FDC. 2 Quote Link to comment Share on other sites More sharing options...
+Nezgar Posted December 28, 2021 Share Posted December 28, 2021 4 minutes ago, ijor said: The FDC calibration is chip specific, not mechanism specific. There is no need to re calibrate the FDC if you change the mechanism, only if you change the FDC. Ah yes you're right, thanks. ?♂️ Edited previous post. Rusty holiday brain. Quote Link to comment Share on other sites More sharing options...
Nickolasgaspar Posted January 16, 2022 Share Posted January 16, 2022 Does anyone know the best way to ship an 1050? The seller doesn't have the cardboard so should he leave the hatch open or closed? Should he use an old floppy if available? Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted January 16, 2022 Share Posted January 16, 2022 Always stick a disk in the drive, stops too much motion on the head etc.. 1 Quote Link to comment Share on other sites More sharing options...
Nickolasgaspar Posted January 16, 2022 Share Posted January 16, 2022 2 hours ago, Mclaneinc said: Always stick a disk in the drive, stops too much motion on the head etc.. Will it survive without anything in it? The seller doesn't seem to be willing to bother about it. Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted January 16, 2022 Share Posted January 16, 2022 29 minutes ago, Nickolasgaspar said: Will it survive without anything in it? The seller doesn't seem to be willing to bother about it. Most likely it will be fine but best practice to put the disk in or the old card insert. More of a worry is a: the courier and b: the psu if it comes with one. Most people pack the drive well but stick the PSU in the box loose, bad move, the psu weighs a ton and lose in transport, it's like having a wrecking ball in the box. pad the PSU up and if possibly make sure there's a little compartment it can be wedged in. 1 Quote Link to comment Share on other sites More sharing options...
Nickolasgaspar Posted January 16, 2022 Share Posted January 16, 2022 (edited) 1 hour ago, Mclaneinc said: Most likely it will be fine but best practice to put the disk in or the old card insert. More of a worry is a: the courier and b: the psu if it comes with one. Most people pack the drive well but stick the PSU in the box loose, bad move, the psu weighs a ton and lose in transport, it's like having a wrecking ball in the box. pad the PSU up and if possibly make sure there's a little compartment it can be wedged in. Well the drive is already shipped. Let's hope the seller did a good packing job. He has an excellent rate (ebay) so I want to think he knows what he is doing. The good thing is that the drive comes without a psu.... minus one threat for things going wrong . Thanks for your time. Edited January 16, 2022 by Nickolasgaspar 1 Quote Link to comment Share on other sites More sharing options...
Mclaneinc Posted January 16, 2022 Share Posted January 16, 2022 A pleasure.. No PSU is a big life saver, so many machines either beaten to death by their PSU or treated like old scrap by the courier.. Have fun with the 1050. Paul.. 1 Quote Link to comment Share on other sites More sharing options...
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