More tapes - This time all Tektronix 405x series -SERIAL PORT

Hi Pete, Send them to Monty - my 4051 is crippled with no serial port. I currently have no way to get data in and out of this, except via Micheal's RAMSTORE modules. Monty, I also looked at emulating the tape drive, or the floppy disk over GPIB, that would be great, have the PC with a NI USB dongle. I could not figure out how to make the National Instruments dongle act like a slave, its normally the master. Randy ________________________________ From: cctalk <cctalk-bounces at classiccmp.org> on behalf of Pete Lancashire via cctalk <cctalk at classiccmp.org> Sent: Thursday, June 21, 2018 11:06 AM To: mmcgraw74 at gmail.com; General Subject: Re: More tapes - This time all Tektronix 405x series a few months ago i had about 20 4051/4052 tapes. if i still do i can send them to you On Wed, Jun 20, 2018 at 5:53 AM Monty McGraw via cctalk < cctalk at classiccmp.org> wrote: > I was successfull at capturing all the files from a 4051 Graphics T1 tape > last weekend. > > Here is the link to a couple of photos of the process: > > Capturing Tektronix 4051 Graphics T1 tape files to laptop > <https://drive.google.com/open?id=18hROXB28PD9Z_GYDNNSXGPK4Pv7GQD8w> > > First I replaced the disintegrated drive belt with one from a NOS 3M DC6250 > cartridge. > > I used my 4051 to PC serial transfer program on my recently repaired and > upgraded 4054A. > > I set the comm speed of the 4054 serial interface to the maximum 9600 baud, > but as it is 7-bit, my program changes all 32 Tektronix control characters > to "~X~" where X is the ASCII character corresponding to that control > character. > > This way I don't lose any of the Tektronix 405x text formatting in the > transfer. > > I was using ExtraPutty on the laptop to capture the program text strings, > then copied the statements into Notepad++ and saved each file. > > I am also working on a Tektronix 4051/52/54 compatible GPIB MicroSD flash > drive that will emulate the Tektronix 4924 tape drive - for all of us with > these computers to use - since both the tapes and drives are very > problematic after all these years. > > This flash drive contains an Arduino with my code - based on the GPIB > flowcharts and info in a 4051 and 4052 GPIB manual. > > You will be able to use the existing 405x program statements with @Y for > the drive GPIB address - since I don't know how to write a ROMPACK for any > of the series :) > > I plan to organize the different captured tapes in directories on the flash > - and that may mean using a non-4924 GPIB secondary address for that > command. It also likely means I need to change any tape commands in each > program to use the flash drive GPIB address. > > That's why I wanted to capture one of the Tektronix tapes with a menu - is > to ensure I could get those files to work on my flash drive design. > > Monty McGraw > >