helocast

I just wanted to give a shout out to Eric Firestone @ https://caddelectronics.com/product/cadd-pc99-suite-2/ who did reach out to me via phone then email to get my product downloaded. He said purchase download works for some and not others (still trying to figure it out). He provided an excellent old school pdf via email that walked me through Windows FTP command prompts to secure my purchase since the package wouldn't download via webpage. I didn't so much care about the suite per se, but I've never owned a copy of the Cyc. + I got a TIPI tutorial in the package (if you aren't familiar with JediMatt's and YouTube's setup tutorials). Excellent customer service! Doug

I went looking to purchase and download this suite after your post, having finally saved up enough to buy it. Unfortunately, the 2 GB package doesn't download more than ~500 MB, creates an empty .zip, and terminates. Contacted the seller via the 'contact' button TWICE and still no reply.

I agree. PG1992 is a very "loose" diode on parameters and same one responsible in the console on the GROM bus creating the weird -.7V bias.

That's correct. I sacrificed a speech unit, de-soldered the phROMs, and replaced the stack up with a socket and then this emulator plugged into that. Doug

Lol, yeah found that out the hard way. Dude who created them originally did have an eBay account (which I can't find now) and I picked up two. I originally had him flash in the U.S. version of the BBC micro with hilarious results. Once I got my programmer hooked up to it and pointed the two dumped TMS 6100 files above and loaded them in the 32K flash, the 4A would only "see" the first of the stacked phROMs. He's since fixed the ~1.7KB program to recognize/respect stacked TMS6100s. I re-flashed the board but never got around to trying it again. I suppose using a larger micro one could reasonably add user-created phROMs but that's on my deep to-do list.

My TI is apart right now and under several layers of projects, so all I could do is grab you the CF card out of the unit and transfer Volume 1 to my PC using the cf2dsk utility ... whatever it is that's on there is an operational volume last time I used it. Sorry. I'll let somebody else respond then as getting Windows 11 23H2 Moment 4 into Windows XP SP3 compatibility mode isn't easy any more. Doug Vol1.dsk

Probably more than you need (files are small and probably available on WHT as I haven't checked in a while). The pdf under appendices has the most info. CF2K-v2.4.pdf CFINFO.dsk NanoPEB-CF7-001.zip vol1-CF7.dsk

You're always welcome to whatever I have ... trash bin the rest. Doug TMS380 Adapter Chipset Jul86.pdf TMS380 Adapter Chipset Supplement.pdf TMS38010 Processor.pdf TMS38021 Protocol Handler.pdf TMS38030 System Interface.pdf TMS38051, TMS38052 Ring Interfaces.pdf

It never hurts to ask, but everything went out the door back into user's hands. I think there were six interested on Sale1,2 so I randomly drew names from those and Sale3 went for $175 if I remember. Thanks for inquiring! Doug

It is and it isn't, but seemed like a good insert visible yet out of everybody's way since I don't know how frequently regular TI users visit Market Place outside the subforums:

There comes a time when your solder iron grows up, marries, and leaves home. Some days you also find that dexterity + patience are no longer your friend. If you're a TI-99/4A owner who's acquired standard PEB interface cards and a few 3rd-party ones after 2010 there's a fair chance you own a card that passed across my work table for repairs either through private sales or that famous E-seller site where everything is "mint" and overpriced. Due to the quantity of hardware involved, I've decided to bring back those ©Radio Shack™ days of Pig-In-A-Poke grab bags if only for a short time as an homage to those days which once were. Also, handy excuse for saying condition as-is, luck of the draw and the only way I know to get this stuff back into user hands without creating multiple E-tailer sales and breaking even on the items left in the pipeline that I'm just not up to testing/repairing. I honestly haven't opened any of them or tested them because that get's the nagging "this should be an easy fix, 20 hours later" scenario started. I do hate to throw the pile out! Curiosity piqued yet? Well, let's get the listing out of the way by grouping, shall we? -------------------- SALE1,2 TI Disk Controller - PHP1240 Serial Manuf/Date 11507 LTA0286 68210 ATA5082 130876 ATA4983 317517 ATA0883 32Kx8 Memory Expansion - PHP1260 41439 ATA2083 48069 ATA2383 50448 ATA2483 315027 ATA0883 RS-232 Interface - PHP1220 37784 ATA4882 and comparable CorComp RS-232 (black shell) P-Code Ver 4.0 PHP1270 201610 ATA2383 101539 ATA5282 -------------------- SALE3 CorComp FDC Card, REV A. -------------------- For each of the first two sales, I'll also be throwing in up to two QI console power supplies and Mini Memory Modules gratis. Dates on the power supplies are March - May 1983. Guarantee the lithium cells in the MMs are long discharged in each. Also two of them look like they came with better intentions attached as somebody changed out the cell holders on two of them with the wrong part which is too tall for the clamshell to close, but clamshell is still included. The rest of the circuitry/soldering look undisturbed from TI. I know! There are good-intentioned, strange people out there. For the last sale I'll also be throwing in the fifth odd one out QI power supply gratis. For SALE 1+2, I guess how this will work/what I'm going to try, is a total of two buyers. $50/card, but must take one from each group for a total of $200 for the sale. Because there aren't 4 complete card sets for 4 buyers, each buyer will get one additional card from the first two groups (higher chance of at least one being good). What you do with the spares is up to you. Free postage/shipping INCLUDED to USA buyers only, but if somebody is international and shipping is high we can work something out. To be more clear, two sales at $200 each and buyer will receive two PHP1240, two PHP1260, one PHP1220 or Corcomp (choice), and finally one PHP1270 ... plus the gratis items mentioned above. I feel this is fair in that pricing is probably at or below E-tailer on the common cards and below on the less common ones. For SALE3, best offer minimum $100 or higher. Okay, I guess now comes the detail(s): These items come from a smoke-free home for at least the past couple of years (I don't usually record source or date I acquire them). Items have been stored in boxes with desiccant packets at room temperature after I acquired them. This is NOT a first come, first serve to prevent buyers and flippers and to give everybody a chance at the sales - the same buyer is not eligible for both sales. -Please PM in your subject line "SALE1,2 Buy" by midnight CDT Thursday, May 12, 2022. Names will be drawn by me on Friday, May 13, 2022 and you can expect PM follow up with Paypal address. I'll need your name + physical mailing address so I can hopefully get your sale packed up and out by the weekend with cleared payment. -Please PM in your subject line "SALE3 with offer (amount)" also by the above deadline (highest offer above $100 wins here) and you can expect PM follow up for my Paypal address as well as giving me your name + physical mailing address so I can get your sale packed up and out by the weekend with cleared payment. This will help me sort out the drawing winners each for SALE1 and SALE2 and allow me to easily find the highest offer for SALE3. Photos are attached as a zip file to prevent media flood inline - please download the AV-scanned attachment to see what you're buying. Again, you are accepting items as final sale, conditions are "as-is" due to age with no testing performed, no returns, and no "Paypal buyer's remorse" as a copy of this message will be provided to them if we need to go down that road. (sorry for the necessary? disclaimers) Nothing else promised except great packing and safe, insured, signature-required deliveries. Thanks for looking and best of luck! Doug TI Pig in Poke.zip

Thanks all for the PMs/replies here - working down the list in DTG order of contact. Finally figured out where the old info was: I appreciate the response and thread is closed as I get a chance to respond. Doug

Between a rock and a hard place - not enough information to list in AA Market Place and certainly not enough to list on that other E-unnamed selling site. As this isn't the appropriate forum, I'll keep entry short (photos attached). Pricing? Looking to give this Myarc HFDC Hard + Floppy Disk Drive Expansion Card a good home. I purchased it from Tim Tesch the summer of 2019 repaired, but never got around to putting in a PEB and testing it let alone using it. Other than what's available on Ninerpedia, Mainbyte, WHT documentation-wise, I don't know more history about it but I know it's aging away in my '99 part drawers. It didn't come with clamshell or cables, but I'll include a 20-pin + two dual 34-pin cables I purchased new shortly after I got the card. Serious inquiries, I guess PM me as I can monitor AA for a couple days though I don't regularly get around these parts much any more. Doug Myarc HFDC V11.zip

The only markings are Tower, possibly http://www.pl-259.com/page4.html but I don't think they were in business in the 70s. Schematically, designated T1 recpt (26.4 VAC @686ma DC, tapped @ 17.85 VAC @ 600ma DC) TI Part# 1501539-1 ... but that's the actual transformer and not what you asked.

Yeah, I keep stuff like this on subscription order better than my Keurig pods ...

Extra was probably a poor word. I just saw an original provision was made for two not implemented. No clue if they represent anything in the GPL scan tables or TI just left them blank - didn't get far enough to research that. When I'm piddling around thinking out loud in ExpressPCB + designing stuff, not being a software/application guy, I try to include full use of assets and let the smart software/assembly peeps run with it. I merely figured if the hardware + 9901 reserved codes in the CRU bits was there, then why not shorten the space bar a tad and make them accessible to the world if someone tamed/altered GROM0? Doug Edit: No doubt with the two unused 9901 pins, this is how the 99/8's keyboard was able to accommodate 54 keys. Just add another scan line to the matrix and you get 8 "new" keys ... of course you have to make software provisions for scanning them.

Here's what I had worked on several years ago (files has an Aug 2018 date) in ExpressPCB https://www.expresspcb.com/ (free but proprietary, let me know if you want the .pcb file). Diode in place to fix the caps lock/joystick up override and individual RGB leds per key for backlighting. Resistors were tiny 0805s if memory serves and nobody likes working with those. Standardized ribbon connector (would require a +5/GND tap added in the 15-pin bundle to support backlighting, but you could leave those off and go classic dark. I think the small SMT latching relay for the caps lock to simulate was solved, but I abandoned the project. When I put it to the group here for sounding and common sense check, there was a lot of pushback that it would be too expensive and I'm certainly too poor to bulk order Cherry brown, RGB PCB mount switches in that quantity to build them for the group. Doug P.S. Good luck on your project ... it has merit as you've already done the hard part.

No problem, Ksarul. I probably should've just posted the whole clean 516-page PDF for anybody else researching chips of the era (it's a huge one): Fairchild_MOS_CCD_Data_Book (1975).pdf

Here's the specs on your F4049BPC compliments of 1975 Fairchild Handbook. I also have several tubes of the 1052911-X if somebody is doing a group project. Doug

I know there's tons of calculators online, but this has always been my go to for supply lines (had to find the website again). https://www.mclpcb.com/pcb-trace-width-vs-current-table/

Not the best copy I've seen, but maybe this will help y'all fill out a few of the missing ones. I checked a few and they seem to match off the list CD+four digit number of TI's part number. Doug

https://www.nanopeb.com/#faq

For this one specifically and to a couple previous posts: Again I have visually identified (desoldered the female GROM riser on a a dead QI board) and those two traces fly by the port without connection, unlike the earlier 4A. Not to raise what I believe a (possible) separate issue to explain the FG's behavior on a QI, but imho I really feel it is more related to how the 4A generates Vss pin 33 on the grom connector vs "real ground" as the QI is wired. What I can't explain yet is why the ~ -.7v bias difference still works on QI built-in groms interchangeable with 4A groms. I really hope I'm not following the wrong rabbit down the proverbial hole on this research.? Doug

You're pretty close from what I've been able to deduce all these years focusing on Figure J of the QI schematic. Despite how it is drawn, the open collector pullup on GRDY does go to all three groms (physically checked best my eyes can do on a populated motherboard). I keep meaning to publish all the oops! I've found so far, but don't really have the software to make a professional presentation here to the collective. Way back when Tursi pointed me to the Hombre TAL stuff on WHT it became one of my main projects. CPURY is a fairly complex equation taking GRDY, GCS, and SYSRY into account driven/sampled on @CLK2 phase and then finally NANDed with three separate conditions off of the shift-hold 8/16-bit bus conversion logic circuit. Hombre Logic TAL004 Gate Array.pdf

Yes, pin 4 -CRUCLK and pin 6 CRUIN have no motherboard connection to the GROM port/riser. Just happens I've been spending the past month going over trace/component by trace between both models for a project. What I have not been able to detail on the FG99 because I don't have the schematics is the use of Vss, GROM port pins 33 & 35 (the odd little -.72V used to pull the line slightly below system ground). The standard TI-99/4A used a cap, resistor, and diode to provide that, but to "save" cost didn't make the final QI design and they just tied both pins 33/35 to ground. I know in Ralph's own troubleshooting he noted the FG99 is doing what it is supposed to, minus making final menu visible/actionable. These are really the only differences between the GROM ports unless you want to discuss the way pin 1 RESET is realized between the two, but that doesn't apply here. I have to assume TI engineers kept timings identical between revisions, but we know GROMs are very poor drivers because of the single transistor managing both pull up and pull down on its data lines. I throw something together in the FG thread whenever I get this little project of mine finished. Doug