- cctalk - classiccmp.org

by Gregory Beat

TEAC FD-55F floppy drives https://retrocmp.de/fdd/teac/fd55f.htm The TEAC FD-55F never appeared in the world of IBM compatible computers. Why is that? Because it was simply superfluous in the DOS world. The TEAC FD-55F is a double-sided 5.25 inch drive that can write 96 tracks per inch (TPI) with 9 sectors per track. In other words, the capacity of a floppy disk is 720 KByte. There were Radio Shack and other computers (NCR, etc.) that used this format (DSQD). This corresponds to the capacity of the standard 3.5-inch double-density (DD) drive. The 3.5-inch floppy disk format was supported since DOS version 3.2. Introduction of 3.5” drives and disks by IBM (mid-1980s) was one reason why the 5.25 inch drives with 720 KByte storage did not find their way into the IBM world. == Further in the above web link: Changing a Teac FD-55GFR drive to a FD-55F drive ... or, How do I get my drive to spin at 300 RPM instead of 360 RPM ? gb

10 months, 2 weeks

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Re: FD-55B head loose

by Gregory Beat

Vogons Wiki has summary from Teac Manuals. TEAC FD-55 Series Floppy Drives http://www.vogonswiki.com/index.php/Teac_FD-55_series TEAC FD-55 Product Brochure (PDF, 6 pages), 1985 printing https://minuszerodegrees.net/manuals/TEAC/TEAC%20FD-55%20Series.pdf greg, w9gb

10 months, 2 weeks

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Westhead acosiates

by Adrian Stoness

Curious if there's anything in the community on them They made a cpm based system that was used in HMI control room settings in the 80's I've got the manuals for their pdm 800 series along with backup of the software on 8in floppy from the mclelan mine in Lynn lake mb. Love to find a system the one that went with my stuff got bulldozed into the ground in 2009

10 months, 3 weeks

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FD-55B head loose

by Jim Brain

I was wondering if anyone here has experience with the FD55-B with head load solenoid. I have a few working ones, but this one is not, and when I look at it, it differs from the others in that the head "wiggles" up and done on the side nearest the solenoid. I can see it is tight on the rail oppose the solenoid, but on the side nearest, the back of the head does not connect with the rail on the back (which seems correct, as there is a piece of that extends out and looks to slot into a sensor. But, I'd assume the front mount would hug the rail, but it only does on the top. By pushing the head close to the disk in use, I can get it to work, so I think this loose head issue is the only one. I guess: * Anyone seen something like this? * Is this a broken rail mount on the head, or something else? * If its broken and probably can't be fixed, anyone have a parts FD55-B? * Can one replace the head on these (it looks like you can, but I admit I have never changed parts in a drive mech. Jim -- Jim Brain brain(a)jbrain.com www.jbrain.com

10 months, 3 weeks

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Food Truck at VCF East 2025

by Jeffrey Brace

VCF East has a food truck this year! Boardwalk Bites agreed to have a truck there. Besides the long lines at Consignment, on-campus food had the biggest complaints from last year's survey. We hope that this solves this problem. MENU: BREAKFAST (Served from 7:30 am) Pork, Egg and Cheese Roll Egg, Bacon and Cheese Burrito Bagels and Pastries Coffee & Tea LUNCH (Served from 11:30 am – 2:00 pm) Cheeseburger Sausage & Peppers Sandwich Vegetarian Sandwich Cheesesteak Seasoned Fries Fresh Fruit BEVERAGES Water, Soda Show info: https://vcfed.org/events/vintage-computer-festival-east/ Tickets: https://vcfed.org/vcf-east-tickets/

10 months, 3 weeks

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Brian Kernighan @ VCF East April 5 at 5PM

by Jeffrey Brace

Brian Kernighan will be interviewed by Stephen Edwards about his 2019 book: UNIX: A History and a Memoir. He will be there Saturday, April 5 at 5PM. Brian Kernighan worked at Bell Labs and co-wrote the first book on C Programming (in 1978) with Dennis Ritchie: "The C Programming Language" VCF East 2025 will be in Wall, NJ from April 4-6. More information: https://vcfed.org/events/vintage-computer-festival-east/ Tickets: https://vcfed.org/vcf-east-tickets/ Take care! Jeff Brace VCF East Showrunner

10 months, 3 weeks

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Need PATA drives?

by Van Snyder

I have some 3.5" PATA drives. One WD2500 250 GB drive and two Maxtor Max Line II 320 GB drives. All three passed SMART long tests. If you need any, they're yours for the price of a PDF shipping label.

10 months, 3 weeks

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Selling Off My Q-Bus Collection (revision based on suggestions)

by Joe

Hi, located in Eastern MA, I already have a couple of interests, but I'll see what comes in. Multiple q-bus boards that can easily ship, a VT103, a BA chassis 9x4 I think and two RX02 units.

10 months, 3 weeks

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Selling Off My Q-Bus Collection

by Joe

Hi Everyone, I'm new to this list so please let me know if I am doing something incorrect. Anyway, I have a bunch of Qbus stuff (RXV21s, RX02s, memory boards, 11/23s, etc) and I am getting to the point in my life that it all needs to go to a new home. I would like to know if anybody has thoughts on where I should post the list or sell it. I could always do Epay, but I'm not sure that is the best place. I thought here or Vintage would be better but I'd like to hear thoughts from somebody that has already been there. thanks in advance Joe Heck

10 months, 3 weeks

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VCF West 2025 Survey - Final Days - Mountain View, California

by Jeffrey Brace

There are only 5 days left to fill out this survey! Help us make a great show for VCF West 2025, please fill out this survey: https://forms.gle/R1kSCsVqEyZfgQ4Q8

10 months, 3 weeks

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