On 10/26/2020 10:50 PM, nico de jong via cctalk wrote:
IBM 360/40 with 4 tapedrives.
the 3420 drives and I suspect their predecessors which were more common
on the 360s used
one light bulb to run the light from one bulb all over the drive.
The 3420's we had had a big box of spaghetti tubing which were the light
pipes to service our
drives. I had the box somewhere when we shut down. The 3420s and
3803 went one way,
the most of the service spares were abandoned.
There were a lot of weird problems with light sensors on those drives.
We had some on our
360/50 at UMR as well, but the 2314 disk drives were more entertaining
with hydraulic failures.
thanks
Jim
PS: when googling ran across this site using an interesting graphic with
interesting peripherals.
https://serverpartswarehouse.com/100-oem-ibm-9348-001-magnetic-tape-unit/
PPS: 2420 drive reference page for that half inch drive.
https://www.ibm.com/ibm/history/exhibits/storage/storage_2420.html
