[cctalk] Re: Flipping an 8" diskette

For a flippy 8” disk you don’t need to punch a notch as the write control is opposite of the 5.25. No notch is read-write. You will need to punch a new index hole in both sides of the jacket though. Pete > On Sep 1, 2022, at 4:10 AM, Liam Proven via cctalk > wrote: > > Someone on Fesse

Re: cleaning up edge connectors

> On Apr 28, 2022, at 3:47 PM, Bill Gunshannon via cctalk > wrote: > > > I am hoping to restore my TRS-80 Model-I(s). As is usually > the case with these the edge connectors are badly corroded > and dirty and cleaning them with an eraser really doesn't > help much. Back in the day there

Re: TRS-80 Question

> > On 4/12/22 6:37 AM, Bill Gunshannon via cctalk wrote: >> So, this just gets more and more confusing. (Have I really been away >> from all this for that long!!!) >> I dug up the tech manuals for the two of them (buried deep in my >> stacks of books) and compared them. And you are, of course,

TRS-80 Trash Talk Live is Tonight at 9pm EST

Come join us on Zoom tonight at 9pm EST for our annual end of year show as we engage in a TRS-80 community retrospective of 2020 and talk about where we want to see the community go in 2021. Email for Zoom details: trs80trasht...@gmail.com Or you can watch

TRS-80 Trash Talk Live #7

We’re having another TRS-80 Trash Talk online gathering tomorrow. Everyone is welcome to join us! https://www.trs80trashtalk.com/2020/08/trs-80-trash-talk-live-7-is-coming-on.html Thanks, Pete

Re: TRS 80 Model 12 Picked up

For Model 12 software checkout https://pski.net/trs-80-model-ii-archive-project/ Regarding the size of the M12, it’s ironic that if you look inside it's a lot of empty space for what it does. It’s meant to be upgradeable to Model 16B specs

Re: Computer Automation Naked Mini circuit boards

I’d like to create a Tandy 150 replica one day since there are no known examples in existence. It was based on the Naked Mini-4 system. These boards seem to be an earlier CA product but I’m not sure. Anyone here know for certain?

Re: TRS-80 Fireworks

> On Aug 28, 2019, at 1:12 PM, Tony Duell via cctalk > wrote: >> > Some people avoid RIFA capacitors, I don't... > > A Model 4 is going to be over 30 years old now. And (I assume) the > original capacitors > have been fine up until now. So if the replacements last as long I'll > be fixing it

Re: TRS-80 Fireworks

> On Aug 28, 2019, at 10:10 AM, Marvin Johnston via cctalk > wrote: > > Almost all of my Model 100s (around 8 or so) need to have all of the > electrolytics replaced. For some reason, they started leaking and causing a > problem with desoldering the bad parts. Upon close examination, the

Re: TRS-80 Fireworks

> On Aug 28, 2019, at 9:34 AM, Marvin Johnston via cctalk > wrote: > > Thanks everyone for the feedback... I had no idea. I'll be putting in an > order today with Digi-key (P/N 399-7483-ND) for probably around 25+ caps or > so since I have at least that many TRS-80 2s, 3s, 4s. > > I guess

Re: TRS-80 Fireworks

> On Aug 28, 2019, at 4:15 AM, Marvin Johnston via cctalk > wrote: > > I'm just curious how many people have powered up their TRS-80 computers, and > ended up with a bang and a room filled with smoke? > > So far, I've gotten the fireworks in two out of two TRS-80s (model 3 and 4) > when

Re: The Retro Search is back up

> On Apr 1, 2019, at 7:11 PM, Kevin Parker via cctalk > wrote: > > This will mostly interest TRS-80 enthusiasts on this list. > > Check it out at theretrosearch.com > Thank you for this, Kevin!

Re: Looking for Byte Jan 78 missing page

Pete > On Mar 24, 2019, at 2:20 PM, Will Cooke via cctalk > wrote: > > In the Jan 78 issue of Byte magazine a series of articles titled "The Brains > of Men and Machines" (also the issue title on the cover) started. EVERY > single scan I can find on the web is missing pages 96 and 97,

Re: Steve Leininger Interview

That’s Chuck Peddle, of course. > On Mar 5, 2019, at 9:15 PM, Peter Cetinski wrote: > > We interviewed TRS-80 designer Steve Leininger on the latest TRS-80 Trash > Talk podcast. > > http://www.trs80trashtalk.com > > Although he does not have the same

Steve Leininger Interview

We interviewed TRS-80 designer Steve Leininger on the latest TRS-80 Trash Talk podcast. http://www.trs80trashtalk.com Although he does not have the same recognition, Steve’s contribution to the history of personal computing is on par with Steve Wozniak (Apple

Re: Kemners Surplus - Real time walkthrough

> On Feb 16, 2019, at 4:43 PM, Anders Nelson via cctalk > wrote: > > They have until the end of June 2019. >> Just my $0.02. When I was there last year they said the same thing. And prices were eBay level. If prices aren’t coming down a lot I suspect they may get their lease

Re: ELTRAN THE COMPILER ANY DOCS? (NOT THE SEMICONDUCTOR STUFF!)))

> On Jan 13, 2019, at 1:32 PM, John Ball via cctalk > wrote: > >> ELTRAN THE COMPILER >> ANY DOCS? ANY ONE? USED IT? >> (NOT THE SEMICONDUCTOR STUFF!)) >> >> ED# > > Hey ed, you might want to check your Caps Lock key there, bud. ;) Maybe he’s using a TRS-80 without the lowercase

Re: TRS-80 Model I modification

> On Oct 26, 2018, at 12:34 PM, Bill Gunshannon via cctalk > wrote: > > Does anyone have a description of how to put 48K of memory in > the TRS-80 Model I without using an Expansion Interface? I seem > to remember there being some published back in the old days > but can't find anything on

Re: TRS-80 bits

I just emailed him. There’s no way I can get there in the next few days. Pete > On Jun 25, 2018, at 12:27 AM, Jim Brain via cctalk > wrote: > > Anyone live near this Hotel? I am just getting home and am just now seeing > this. Evidently, this is a rescue attempt, but I don't have a

Re: IBM junk

That’s a Computer Museum Starter Kit. Wow.

Re: Last of the TRS-80's

> I am trying to ascertain what the last computer released by Tandy/Radio Shack > was that had the TRS-80 name on it > > I think it was the CoCo 3 in 1986 > > Kevin Parker The CoCo 3 was Tandy badged and never had TRS-80 nomenclature. I believe the honor of last TRS-80 labeled computer

Re: TRS-80 Fragmentation

Excuse my long post, but I get excited whenever I can talk about the Model 16. :) I will expound a bit on what was already mentioned. The Model 16 was an engineering marvel. It was released in 1982 in the same form factor as the venerable Model II. It was essentially an upgraded Model II.

Re: "Left a home full of computers" Craigslist ad

> On Nov 5, 2017, at 1:46 AM, jim stephens via cctalk > wrote: > > I don't know anything but the ad copy the poster placed. > > I'd think there might be more to the story if someone is in Southern New > Hampshire and can contact and perhaps visit. Londonderry, north

Re: Post scanned documents to multiple sites - Re: Tubbs fire consumed the collected archives of William Hewlett and David Packard

I suggest creating a free github.com account with a public repository. This way whenever someone forks or clones the repo they get a full local copy with one command...”git clone”. Get enough people and you’ll never worry about losing the archive and it’s all for free. If github goes away

Re: Visicalc

> On Oct 17, 2017, at 7:24 PM, Fred Cisin via cctalk > wrote: > >> On 17 October 2017 at 22:51, Murray McCullough via cctalk >> wrote: >>> Today marks the 36 anniversary of Visicalc a seminal program in the >>> world of classic computing. >>>

Re: Halt and Catch Fire (TV series)

> On Oct 16, 2017, at 2:18 AM, tom sparks via cctalk > wrote: > > I have just finished watching [Halt and Catch > Fire](https://en.wikipedia.org/wiki/Halt_and_Catch_Fire_(TV_series)) > I've tried to Identify the companies the show represents > > > 1990 -1995 (Season

Re: Giving away my collection to someone just starting out in the hobby

> On Oct 13, 2017, at 2:25 AM, Digital Aeon via cctalk > wrote: > > So ive picked out 4 or 5 systems that mean alot to me.And i want to > pass the rest of the collection onto someone starting out in the hobby that > wouldnt otherwise have the funds to get some of the

Re: Tandy Assembly

f Tandy Assembly here: > https://www.youtube.com/channel/UCPyGtUzQU0Vf7CiSiJLySUg/live > > In Don French's keynote, he mentioned he designed an S-100 interface for the > TRS-80 Model 1. Do you or anyone know if that was the HUH Electronics 8100 > S-100 interface? > >> On Sat

Tandy Assembly

Only one week to go until the inaugural Tandy Assembly event in Chillicothe, OH. We’ve been planning this for over a year and it’s exciting to finally see it coming together. We’ll have exhibits and presentations covering all of the Tandy computers, from the TRS-80 Model I to the Tandy 6000.

Re: TRS-80 Model 16 hard drive replacement woes

> On Aug 13, 2017, at 2:54 AM, Josh Dersch via cctalk > wrote: > > On 8/12/2017 8:45 PM, Fred Cisin via cctalk wrote: > >> Long shot: >> Is this a system (like the 5160), where there are TWO format programs? >> 1) a physical low-level format done by special proprietary

Re: Through-hole desoldering (was Re: IBM 5110 - Where does the character set live? And other questions.)

On Jul 13, 2017, at 1:23 PM, Mike Loewen via cctalk wrote: > > I used a Pace rework station in the USAF, vacuum desoldering and hot air - > very nice, but pricey. > Wow, where were you stationed? In the late 1980s I was at Beale AFB working on SR-71 cameras and we

Re: Through-hole desoldering (was Re: IBM 5110 - Where does the character set live? And other questions.)

> On Jul 13, 2017, at 3:31 AM, Eric Smith via cctalk > wrote: > > > 2) vacuum desoldering gun: lots of people liked the Hakko 808, but it's > discontiued. The Hakko FR-300 looks like a reasonable replacement, and > sells for around $310. The drawback compared to the

Re: Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)

> Is the file for the PAL available to program new ones? If the items are not > registered, I can read out the equations. Theses PAL equations specifically to allow the 6Mhz board to run Xenix 3 do not exist AFAIK. I do have a PAL upgraded board but have not yet verified if it works. If

Re: Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)

Pete > On May 1, 2017, at 1:49 PM, Jim Brain wrote: > >> On 4/24/2017 6:55 AM, Peter Cetinski wrote: >>> >>> >>> You can find the MC68000 board set (you’ll need a CPU board and at least >>> one memory board) on eBay quite often. In most cases, it will be the Model >>>

Re: TRS-80 Model 12 versus 16B

> On Apr 25, 2017, at 11:46 PM, Alan Hightower via cctalk > wrote: > > Does anyone know if the 16 keyboard circuitry will work with a 16B if I > created a custom cable? Yes, it can work with a wire rearrangement and gender swap on the DIN. See this thread for

Re: TRS-80 Model 12 versus 16B

> On Apr 25, 2017, at 10:52 PM, Jim Brain wrote: > > So, the 16B has the KB conn on the machine, but the KB? > And, the 16B has the Z80 motherboard, witht eh 68K in the cage? 16B keyboard is the same as the 12. Cord is on the KB with a male connector. Female is on the

Re: TRS-80 Model 12 versus 16B

The Model 16 was introduced in 1982 and was an upgraded Model II with the addition of an MC68000 subsystem that allowed you to run 16bit OSes, like TRSDOS-16, CPM-68K and TRSXENIX 1.x. On all Tandy 68K machines and operating systems the z80 ran in concert with the 68k. The z80 handled all I/O

Re: Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)

> On Apr 24, 2017, at 11:36 AM, Jim Brain wrote: > > For now, since the KB is most needed and somewhat hard to find, and since I > design HW for classic machines, I think a small uC and some wire might tide > me over until I can find a reasonably priced KB. I did a quick

Re: Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)

> On Apr 24, 2017, at 11:49 AM, Jim Brain wrote: > > I'll email off-list about disks, as I truly know so little about the unit, > I'm not sure what to ask for. Certainly. > > Are you considering going to Assembly? If so, I'd defer to your exhibit, as > you know much more

Re: Looking for TRS-80 Model parts (and/or someone in the Phoenix, AZ area)

> > In a message dated 4/23/2017 8:14:33 P.M. US Mountain Standard Time, > cctalk@classiccmp.org writes: > > Just picked up a TRS-80 Model 12, and it boot to the "insert disk > prompt" ... Yay! > > But, no card cage, and no KB (and no disks, but those might be easier to > find) > > I'd

Re: cctech Digest, Vol 34, Issue 15

> On Apr 16, 2017, at 8:13 PM, Tim Mann via cctech > wrote: > > I hadn't heard of the MISE or M3SE before, so I googled. Remarkable > projects. It's pretty tempting to get an M3SE to play with on the Model 4P > that I bought as a reference platform when I was adding 4P

Re: MISE and M3SE

> On Apr 15, 2017, at 11:05 AM, Bill Gunshannon via cctalk > wrote: > > > Well, now that I know there are TRS-80 afficianados here i wonder if there > are any MISE/M3SE experts? I have both running here now and really like > them. But, back in the "good ole days" I

Re: TRS-80 curiosity

> On Apr 14, 2017, at 11:15 AM, Fred Cisin via cctalk <cctalk@classiccmp.org> > wrote: > > On Fri, 14 Apr 2017, Peter Cetinski via cctalk wrote: >> The EI expansion port was originally called the Screen Printer port because >> that was the only accessory that co

Re: TRS-80 curiosity

> On Apr 14, 2017, at 10:36 AM, Bill Gunshannon via cctalk > wrote > > Sorry, I didn't see any cable in that item. Just an extremely overpriced > printer. > > Or should I say firestarter? > > bill > Here's the pic of the cable http://imgur.com/UhvJ2Ed

Re: TRS-80 curiosity

On Apr 14, 2017, at 9:11 AM, Kelly Leavitt via cctalk wrote: > >> On another note, the box is labeled "To EI Screen Printer Port". >> Not sure what that means as the EI has a "Line Printer Card Edge" >> and not something specific to the Screen Printer. > > Well, that

Re: TRS-80 Model 1 Expansion Interface question?

> On Mar 20, 2017, at 8:46 PM, Win Heagy via cctech > wrote: > > Is there any reason why this chip would be removed? I see a number of them > on ebay for around $25. The expansion interface hardware manual indicates > it is an FD1771B-01, but the service manual