Vintage Artwork Audio record and erase drivers

[MrMobodies]

I got these two modules in a box amongst other things down the bootsale in 2000.
Couldn't find the record driver but found the erase one to take closer pictures.
I still can't find much on the part numbers.
They look like they were from a mixing desk.

Audio record driver:
ARTWORK J
AVB11610580
Part no 1372119-02
ASSY NO:13643350-05

Erase driver:
ARTWORK K
AVB13270181
Part no 1372122-01
ASSY NO 1364451-06

Anyone seen these before?

[floobydust]

Those look like they are from Ampex MM1200. I've repaired them at a recording studio. MM1000, MM1100 also in the same family. 2" mag tape needs serious record/erase amps.

It's a huge machine but straight forward electronics, aside from the servo portion. Mag tape sounds excellent, it has some great qualities that sound engineers still go after to polish off a mix.

edit: But part numbers don't match. They're Ampex 7-digit but MM1200 bias amp is 4050433.

I'll look for 1364350-05 and 1364451-06. I would say it's Ampex

[MrMobodies]

Thank you. After you mention Ampex I have just been looking at the modules and I saw that round symbol one them but not "Artwork" label.
The ATR 100 Reel Servo seems to have an identical style bracket.

[floobydust]

My money is still on Ampex.
Looking at the root part number:
4950xxx-xx for the MM1200
4050xxx-xx  for the 440

1364xxx or maybe 1372xxx here I can't find any machine or models with those numbers.
The transistor and IC datecodes (numbers) would narrow it down, the era.
I would post the question on gearslutz