test-drb May 2005

test-drb@ccmp.vtda.org

248 participants
723 discussions

older semiconductor manuals available in Kansas City

by cmcfadden5＠comcast.net

Fairchild Semiconductor 1. Opto electronics handbook Feb 1973 2. TTL data book June 1972 3. Discrete Products databook July 1973 4. The Linear Integrated Circuits Data Catalog Feb 1973 5. MOS/CCD data book 1975 6. Condensed Catalog LSI microcomputers memories CCD May 1978 7. Optimos Sep 1972 8. TTL Applications Handbook August 1973 9. Optoelectronics data book 1978 10. FAST (Fairchild Advanced Schottky TTL) 1980 11. TTL Databook 1978 12. Hybrid Databook 1978 Signetics 1. Full Product Line Reference Oct 1979 2. Military Product Reference Guide May 1979 3. Logic - TTL Specifications, military Summary 1978 4. Analog Specifications, military summary 1979 5. Bipolar & MOS memory Jan1979 6. Analog specifications, applications, military summary Aug 1977 Siemens 1. Zener Diode Reference Guide EEM 86 87 Volume W Mike c m c f a d d e n 5 at c o m c a s t dot n e t

19 years, 2 months

zip (was: Re: Disk archival techniques)

by dwight.elvey＠amd.com

>From: "Randy McLaughlin" <cctalk at randy482.com> ---snip--- > >I have some archives that are archives of archives and intend to go back and >extract the original archives into un-packaged treed directories then >repackage into just a zip format so that future users don't have to figure >out the zip format to then have to figure out the myriad of CP/M >packaging/squeeze formats. > > Hi Randy What you are doing is great! Don't get me wrong. All I'm saying is that archiving shouldn't be making it harder to read. As you have just stated yourself, some older obsolete formats are a pain. Even zip will be obsolete someday ( not today ). You seem to be confusing the distribution of information with archiving. These are completely different problems. You don't need to defend you methods of distribution with me. I don't know if I could do any better. Dwight

19 years, 2 months

Tektronix, TI and Sony gear available in Kansas City

by cmcfadden5＠comcast.net

I have the following classic computer gear available. Tektronix 4205 missing keyboard came from Harmon Electronics Tektronix 4052 missing the cover, somebody disposed of the cover before I got it. Tektronix 4209 + keyboard, big honker came from Allied Signal Tektronix 604 monitor Tektronix 632 monitor Tektronix 650-1 Matrix Monitor Sony Series 35 Model 10 with 2 internal floppy drives I seem to remember that this can run CP/M. Texas Instruments System 1100 gray tower CPU I'm cleaning the garage and this was on top of the piles, more later. Mike c m c f a d d e n 5 at c o m c a s t dot n e t

19 years, 2 months

Need National Semiconductor MM5740AAE

by vcf＠siconic.com

I am in great need of a working NS MM5740AAE keyboard encoder. I have a Datanetics keyboard with one of these in which testing has led me to believe it is bad. I'm willing to pay a reasonable price. Even getting a whole Datanetics keyboard with the proper encoder would be welcome. Please reply off-list if you have one you'd like to sell. Trades also considered of course. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

19 years, 2 months

zip (was: Re: Disk archival techniques)

by dwight.elvey＠amd.com

>From: "Jim Leonard" <trixter at oldskool.org> ---snip--- > >I see people on the thread complaining about having to bundle a >windows emulator with each archive. Excuse me? Let's look at some >popular formats: TAR, ZIP, RAR all have source-code unarchivers. >Which means they can run on any machine with a C compiler. So >what's with all the paranoia? Just use whatever works as long as >more than one major platform can extract it. > Hi We then have a library with the one key. If it just happens to be that key that gets lost, and keys do get lost, we call the lock smith and hope he can unlock it. Maybe I'm just thinking a little beyond where you are at. Extra levels are not good. I can't find a way to make it any clearer than that. If you've ever spent some time actually recovering corrupted data you'd understand. Dwight

19 years, 2 months

Datasheet or info for Fairchild uA3656D?

by aek＠bitsavers.org

It is likely they are Fairchild's version of the 1101. I just checked my 1969 catalog, and their other MOS parts were in the 3xxx range (they hadn't started making RAM then though). Will try to find a catalog in the pre '75 range (they appear to have gone out of production by 75)

19 years, 2 months

zip (was: Re: Disk archival techniques)

by dwight.elvey＠amd.com

>From: "Vintage Computer Festival" <vcf at siconic.com> > >On Wed, 18 May 2005, Jim Leonard wrote: > >> Dwight K. Elvey wrote: >> > It seems that may of you are missing the point. The archives >> > are intended to be useable in say 500 years ( moved to >> > future media ). Any proprietary application like WinRAR >> > is useless for this purpose. >> >> I think that *you* are missing the point that *no* archive can last that long >> except maybe paper. (I say this because the media reader for paper is... all > >You're interpretting what Dwight is saying within your own context. >Dwight is referring to the content itself, not the media on which the >content (The Archive) is stored. Thanks Sellam I'm debating even keeping things in ASCII for long term. Binary is close to the original but lacks the ability to add format type information. I still like to keep it human readable in something like ASCII. ASCII has a relatively long history in the computer industry. Once the information has been determined, by some future computer geek, to be recoverable he( or she ) can quickly write a translation program to bring it into the current environment. In any case, these are all academic in comparison to the problems of indexing. I don't even have the beginings of how to deal with that problem. Dwight > >> humans. 100 years from now I wouldn't expect to be able to read a >> DVD-ROM, for comparison.) Most digital archivsts agree that the goal is >> not 100 years, but 10-20 so that it can be transferred to the new >> generation of media every so often. > >This is now a given to anyone that's given it a couple moment's thought. One should try to look for media that has longer life but not as the only storage method. Paper has been remarkably good compared to some of the others. Overlapping of storage makes things safer. Dwight

19 years, 2 months

Price of Gas in Ohio (Dayton Hamfest)

by Watzman＠neo.rr.com

If you are a member of a warehouse club (Sam's, BJ's, etc.) that sells gas, it is not uncommon for their gas prices to be 20 to 30 cents per gallon less than "gas stations". We easily pay for our Sam's and BJ's memberships just with our savings on gas purchases. In Dayton, there is a Sam's club that sells gas just west of I-75, just South of I-70 (take 75 South from the 70/75 intersection, and I think you get off at the first exit, it's a bit further south on the west side of the surface street that runs west of I-75). There are probably other locations and other wholesale clubs, but that's the only one that I know of. Debating now between going tomorrow (Friday) or Sat, weather looks better for Sat.

19 years, 2 months

uA3656

by aek＠spies.com

I have a catalog from 1969 which lists their MOS parts in the 3xxx range. They didn't make RAM in 1969, will try to dig out an early 70s catalog to try to find 3656's (I'm guessing they will be in the '72 or '73 ones).

19 years, 2 months

Datasheet or info for Fairchild uA3656D?

by dwight.elvey＠amd.com

>From: "Joe R." <rigdonj at cfl.rr.com> > >At 05:17 PM 5/18/05 -0700, Dwight wrote: >>Hi >> There is a good chance it is an interface part. >>Remember the 8008 bus is not TTL. > > ???? Ok then what is it? The first page in my Intel 8008 manual says >"TTL Compatible (Input, Output and Clocks)". Or am I missing something? > > Joe > > Hi Joe My bad. The spec sheet shows that it will work with TTL. The inputs can go to VDD but don't need to. Dwight

19 years, 2 months

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test-drb May 2005