On 2/8/22 14:14, Wayne S via cctech wrote:
Searched a lille bit for Western Magnetics.  Here’s a site that has some 
surplus heads, even a western magnetics onebut probably not the correct one. 
There is a corporate charter record for Western Magnetics in Minnesota dated 
1964. Maybe this is the same company. There’s also a tape head from Michigan 
Magnetics. Maybe a merged company?


Sent from my iPhone

On Feb 8, 2022, at 13:05, Ron Pool via cctech <cctech@classiccmp.org> wrote:

So it sermsdectape heads are special. I don’t think Dec would have the desire 
to make them internally so they probably contractef with a company already set 
up to do that. Who were the big tape head manufacturers at that time? Does 
anyone know?

A photo of the back of a TU56 DECtape head can be seen at 
https://www.pdp8online.com/tu56/pics/head_label.shtml?small .
The head has a label on it that reads:
  Western Magnetics
  Glendale Calif.

I've never seen a TU56 in person and have no idea if they have separate read, write, and 
erase heads or some other combo.  The "Record" notation on the above head's 
label hints to me this might be a write head.

I found that and other DECtape photos at 
https://www.pdp8online.com/tu56/tu56.shtml .

-- Ron

Thanks.  Hadn't seen the Minnesota information.  Found some references but not actual company info.  Did find a reference somewhere it Canada, but I couldn't tell if it was original or successor company.  At any rate, no web presence nor telephone numbers found (yet.)

I've dealt with the SurplusSales (of Nebraska) many times.  His prices are usually pretty high (not obscene, but just not 'surplus' prices I'm used to.)  However, he is a first-rate dealer and when he says something is so, you can count on it.  Never had problem with anything I was willing to *PAY* for.  I scanned the list you provided and found only a few 'digital' devices, unfortunately.  I suspect from 7 and 9 track mag tape drives.  I will scan his site and send him a ping so he'll be on  the lookout.


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