Hello all,
I have transferred some simh .tap files to my PDP-11/23+ running RSX11M+.
There I have tried to use VCP to attach them to a virtual device but I keep
getting an invalid record format error. I then realized the simh .tap files
most likely aren't organized correctly. If I attach them to TS0 in simh I
can work with them. So now I am trying duplicate a tape into a new .tap
file created using VCP. I can't for the life of me get it to work though.
BRU doesn't support tape-to-tape and FLX doesn't complain but also never
completes. Is there a process for tape duplication under RSX?
The images were first transferred to my PiDP-11 using ftp in binary mode
over TCP/IP. From there I used NFT in image mode and I tried both record
and block modes.
I have also seen the simh tape tools but there doesn't seem to be a tool to
convert a simh file back to what would be on a real tape.
Anyone have any information or pointers to get this to work?
Thanks!
-Peter
Swap Meet Update 6/4/25
Weather
The weather on Saturday is being watched closely. A little rain is not
concerning, but the thunderstorms are concerning. We will make a final call
on Thursday at 10PM about what we will do. We will post updates here:
https://vcfed.org/vcf-swap-meet
Food Truck
The food truck cancelled on us and we can't find a replacement at the last
minute. We *may* have some solution to support at least the vendors and
volunteers. The general public are on their own.
Otherwise we have plenty of vendors signed up with lots of interest. We
have been posting daily on Facebook & Instagram to tell everyone about the
event. Lots of engagement, interest and excitement.
Take care!
Jeff Brace
VCF/MARCH Fundraising Manager
I have an AT&T branded SCSI enclosure. Two half-height bays with the
drives held vertically (on their sides), with a door that opens to
expose one for a tape drive, activity lights labeled hard drive and
tape, CN50 connectors, the AT&T beige and brown
color scheme I associate with 3B's and 6300 PCs. No model number.
Anyone have any idea what this was made for?
I was given an ASR-33 complete with stand, reader & punch.
This ASR-33 has been modified for RS-232 though a blue perfboard mounted
in the connection enclosure (under the cover place where the dialer
would be on the right side).
It has a DB25 ribbon cable coming off of this board. The perfboard does
not have a label on it that I can find.
The ASR-33 also has a 3 x 5 conductor rectangular connector coming out
of the rear of the unit with 6 female contacts installed.
I was able to connect the ARS-33 to a VT-330+ at 110B 8-N-2 and send and
receive on the teletype.
The punch seems to work as well.
The reader will "chatter" then the reader is put in the start position
and the tape out sensor is pressed but the sprocket does not advance and
the reader pins to not move.
Questions:
1. Why the reader is not advancing and the pins are not activating?
Could this be a read enable contact not being in the active position?
2. What are the pin outs of the RS-232 DB-25. Other than TX, RX and GND
3. What are the pin outs of the 3 x 5 rectangular connector. I think
this is the current loop and other control signals.
Does any one of the items below for sale or have a 3D model I can print:
1. Roll Paper spindle (the spindle that the roll paper spins on)
2. Paper Tape Punch Spindle (the spindle that the paper tape spins on)
3. Paper Tape Chad feed tube
4. Paper Tape Chad Box
I will be connecting this to either a PiDP-8/I or a PDP-8/E for now and
eventually a PDP-8/L
Thank you,
Mike
