Description: Historic IBM Germanium "Computer" TransistorType 153 Date Code “6132” (Made the 32 week of 1961)(Approximately 63 years old) Information from Jack Wards Semiconductormuseum Web Site: “Throughout the 1950s and into the early 1960s, IBM continued to manufacture transistors.By the mid-1960s, IBM had ceased the manufacture of discrete transistors.The last transistor type to be manufactured in-house by IBM was the germanium mesa device, identified as types 151 – 165..." (type 153 presented here). "The germanium mesa transistor was the “speed king” of other types in the late 1950s. Also of note is the fact that a photolithographic process was used during manufacture, which was a key factor in ensuring consistency and reliability. The mesa type was eclipsed a few years later with the advent of the Fairchild silicon planar transistor… These represent the final production transistor types manufactured by IBM.” The “153” is in a TO-18 package with long leads with unique "dual plating" on the leads,(this part was not soldered, this part was never used).See the photos...the leads have a gold plate near the top, and silver-solder "plating" near the bottom. These are NOS (New Old Stock) unused parts. These are rare, working germanium transistors. ~ US Stock…Fast USA Shipping ~
Price: 40 USD
Location: Van Nuys, California
End Time: 2024-11-01T19:11:00.000Z
Shipping Cost: 3.95 USD
Product Images
Item Specifics
Restocking Fee: No
Return shipping will be paid by: Buyer
All returns accepted: Returns Accepted
Item must be returned within: 30 Days
Refund will be given as: Money Back
MPN: 153
Vintage: Yes
Compatible Brand: Universal
Brand: IBM
Type: Germanium "Computer" transistor
