Bell labs M2271 Telstar radiation sensor transistor ATT see Walter Brown article

I FOUND ANOTHER COUPLE I CAN SHARE WITHYOU!

These were an experimental device developed for the Telstar communications satellite to monitor radiation.  EXTREMELY RARE . AS USED JUST FOR THIS  PROJECT!

PLEASE see Walter Brown article here in the listing photos

The buyer will be sent a color photo file of an interior shot of unit cutaway that is in the museum's collection.

Please refer to the article cutaway b/w photo  here in this lidtinhs photos

Start your collection off  right   with  a  great  example  of Bell transistor  technology! 

Only a few that we deem are for sale that  are  extra  to  the museum's collection.... We do have some other extras of other transistor  types listed too. 

Also, if there is  something  you are  looking  for in particular, I can  check  to see if  we  have  an extra and list it  here  for  you.

Great provenance on these  units  you  can search  smecc   and  you  will learn more.

.

Condition is used. 

Shipped with USPS Priority Mail.

sold as is

no returns

no refunds

Know what you are ordering.

Please see photos - they are your description!

Ask questions 

Offers are considered for highest and best use.

Shipping is by priority mail and is tracked...insured and signature. confirmed... etc.

.