View Profile: nikola-wan - Vintage Computer Forum

September 19th, 2018, 02:43 PM

nikola-wan started a thread Tektronix 4052A/4054A Assembler program and TECO text editor in Other

This assembler program was also in Bob Rosenbloom's donation to the Living Computer Museum on Tekniques Vol 6 No 4 Tape T1 - however, I did not find...

0 replies | 32 view(s)

September 19th, 2018, 02:19 PM

nikola-wan started a thread Tektronix 4051 Assembler Program - with 156 pages of instructions + BASIC entry pts in Other

Among the Tektronix documentation treasures I found in Bob Rosenbloom's donation to the Living Computer Museum was several Tekniques Tapes and...

0 replies | 41 view(s)

September 15th, 2018, 09:15 AM

nikola-wan replied to a thread Bigboard II in Other

Here is the 4051/52/54 RS232 25-pin connector pinout: Tek 4050 Option 1 Comm RS232 pinout Monty

16 replies | 439 view(s)

September 13th, 2018, 07:02 AM

nikola-wan replied to a thread Tektronix 4051 / 4052 / 4052A / 4054 / 4054A Program Archives in Other

Thanks Al! That manual is very detailed - and will even help me on my GPIB MicroSD flash drive design - understanding the exact Tek GPIB command...

17 replies | 1192 view(s)

September 12th, 2018, 05:37 PM

nikola-wan replied to a thread Tektronix 4051 / 4052 / 4052A / 4054 / 4054A Program Archives in Other

I ported the 1979 Byte Magazine Vol7 No4 Roger Chaffee QUEST to Tektronix 4050 Basic in 1979. I still have the 3M silver paper printout from the...

17 replies | 1192 view(s)

September 9th, 2018, 04:42 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Dave, and here are the rest of the microcode trace photos and the waveform screenshot with the four LSB CC bits:

34 replies | 748 view(s)

September 9th, 2018, 04:37 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Dave, Here are photos of the trace - I actually included 7 CC bits since they were all on the same chip. I would have to remove something to get...

34 replies | 748 view(s)

September 8th, 2018, 04:42 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Dave, I have captured the code in the two small devices and seven microcode EPROMs on my 4052 ALU board in Motorola Hex format with my DATA I/O...

34 replies | 748 view(s)

September 8th, 2018, 01:08 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Here is a link to my 4052A/4054A microcode V1.0 Monty's Tek 4052A/4054A V1.0 microcode I'm still looking for my original 4052 microcode. I...

34 replies | 748 view(s)

September 8th, 2018, 12:02 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Dave, the trace gets to 3C pretty fast: All data collected on URA0-10 address bits. I added a waveform picture

34 replies | 748 view(s)

September 8th, 2018, 10:45 AM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Dave, How many trace samples are needed? I got my HP1630A logic analyzer hooked up and got lots of samples. However, I'm now trying to...

34 replies | 748 view(s)

September 6th, 2018, 04:03 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Dave, I have an HP logic analyzer I haven't turned on in years. You want URA0 to URA9 - what about URA10? it is on J205-9 what is the clock...

34 replies | 748 view(s)

September 5th, 2018, 03:06 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

The 4052 technical reference indicates that there is an instruction that flips the extra address bit to access the 64KB ROM space above the 64KB RAM...

34 replies | 748 view(s)

September 4th, 2018, 04:05 PM

nikola-wan replied to a thread Tektronix 4052 emulator. in Other

Dave, I checked my 4052 ALU board: U160 pin 3 is tied to +5V U272 pin 15 is open U100 pin 13 is open U108 pin 13 and 14 are open Monty

34 replies | 748 view(s)

September 3rd, 2018, 06:39 PM

nikola-wan replied to a thread Tektronix 4051 / 4052 / 4052A / 4054 / 4054A Program Archives in Other

After extensive internet searching - I found a treasure trove collection of 187 Tektronix 4050 program documents - most in original Tektronix binders...

17 replies | 1192 view(s)

September 3rd, 2018, 11:59 AM

nikola-wan replied to a thread Tek 405x web-browser emulator in Other

Dave, Drat - I was hoping the 4052A assembler program would help :( I just recovered the 4051 assembler program files from the Tekniques Vol 7...

138 replies | 11662 view(s)

September 3rd, 2018, 06:38 AM

nikola-wan replied to a thread Tek 405x web-browser emulator in Other

Dave, I did see falter's post on the Tektronix bit-bucket. If his BASIC is closer to the 4010 or 4114 terminals - then one of my BASIC programs...

138 replies | 11662 view(s)

September 2nd, 2018, 11:03 PM

nikola-wan replied to a thread Tek 405x web-browser emulator in Other

Dave, Good news and bad news: The good news is I found the Tekniques Vol 6 No 4 T1 tape, and recovered the ASSEMBLER program file and companion...

138 replies | 11662 view(s)

August 26th, 2018, 12:39 PM

nikola-wan replied to a thread Tektronix 4957 Option 02 graphics tablet - need schematic in Other

I spent a couple of hours this morning scanning the user manual that came with my tablet - as it shows differences in commands between the original...

1 replies | 118 view(s)

August 26th, 2018, 12:14 PM

nikola-wan started a thread Tektronix 4957 Option 02 graphics tablet - need schematic in Other

I tried hooking my 4957 Option 02 graphics tablet to my laptop for testing - and smelled smoke from the tablet :( I looked at the PCB and saw the...

1 replies | 118 view(s)

August 24th, 2018, 04:34 AM

nikola-wan replied to a thread can someone shed some light on the Zaisan computer? in Other

Full MSDOS compatible. It would run all the IBM PC applications. Monty

4 replies | 313 view(s)