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IBM Z2177 vacuum tube, used in early digital circuits 30000528 Z2177 3 International Business Machines tube computer

$16.50

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Arrives soon! Get it by Sep 29-Oct 1
Sep 29-Oct 1

Selling fast! Only 1 left, and 1 person has it in their cart.

Star Seller. This seller consistently earned 5-star reviews, shipped on time, and replied quickly to any messages they received.

Nice choice! Enjoy free shipping to the US when you spend $35+ at this shop.
Sep 29-Oct 1

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  • Vintage from the 1950s
  • Materials: glass, metal, vacuum, getter

International Business Machines (IBM) Z2177 vacuum tube. This tube manufactured by General Electric (GE) and was used in military programs.

You can find mention of it on page 27 of this 1954 document from MIT:.
http://dome.mit.edu/bitstream/handle/1721.3/39785/MC665_r10_M-2835.pdf?sequence=1

Overall height 2.5" and 0.75 diameter.
The IBM Z2177 is 9 pin miniature, twin triode tube and is electrically similar to the 5965.
There is another version of the Z2177 that has the same dimensions as a 5965

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The estimated delivery date is based on your purchase date, the recipient's location (actual or inferred), the seller's processing time and location, and the shipping carrier.

Other factors—such as shipping carrier delays or placing an order on weekend/holiday—may push the arrival of your item beyond this date.

Learn more

Sep 29-Oct 1

Sep 26

After you place your order, LeedsRadio will take 1-2 business days to prepare it for shipment.

Sep 27-28

LeedsRadio puts your order in the mail.

Sep 29-Oct 1

Estimated to arrive at your doorstep Sep 29-Oct 1!

Etsy offsets carbon emissions from shipping and packaging on this purchase.
Etsy offsets carbon emissions from shipping and packaging on this purchase.
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Ships from Bronx, NY

Richard

Richard

Owner of LeedsRadio

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1,539 shop reviews

5 out of 5 stars
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5 out of 5 stars

Just as described - thank you!

Alex Hart Dec 19, 2018

5 out of 5 stars

Silvania 6x5 WGT, brown base, 1957 millitary rectifire tube, the very best of all others! ( RCA, Brimar, Zenith, Raytheon, GE ) Very tight and full bass, very natural and holographic sounding. Gear; Audionote L 3 Phono Stage. Thanks!

Philipp Aug 24, 2022

5 out of 5 stars

What a cool looking rectifier tube! I'm using it (with an adaptor) in a single ended EL84 amp I made from an old Siemens/Telefunken push pull. Great sound, too!

Scott Jun 5, 2022

5 out of 5 stars

Richard is the man. The tube is in perfect shape and works great. Great customer service too.

Robin Wienands May 5, 2022

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