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

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

$16.50

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Arrives by Apr 17-20 if you order today.
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Apr 17-20

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.

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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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Estimated arrival

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

Apr 17-20

Apr 13

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

Apr 14-15

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Apr 17-20

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Estimated to arrive at your doorstep Apr 17-20!

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Ships from Bronx, NY
Richard

Richard

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1,015 shop reviews

5 out of 5 stars

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Multiple people gave 5-star reviews to this shop in the past 7 days.

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Jean-Marc Dec 5, 2020

5 out of 5 stars

Expédition rapide de 24 jours vers la Belgique et ce malgré les circonstances actuelles . Emballage plus que correct . Le suivi du colis en transit est aléatoire , voire inexistant et petite surprise à la réception,à payer des frais supplémentaires de douane et TVA ... Cela me reviens à 100 euros la paire de tubes ,un peu cher je trouve ! Bref , J'ai consacré un peu de temps à tester ces tubes et à l'écoute , j'en suis vraiment enchanté,de belles basses à la fois profondes et nettes , les voix sont très belles , les orchestres sont bien lissés,propres et aérés. A mon sens, ces tubes conviennent très bien à mon installation et à mon type de casque,l'écoute (prolongée ou non) est agréable et sans fatigue . Merci au vendeur pour sa réactivité .

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Purchased item:

William and O'Neil Feb 23, 2021

5 out of 5 stars

Tube works well. I have all new tubes in the preamp which performs excellently. Outstanding service and shipping from Leeds Radio. Item arrived safely and described as promised. A+++ WNO

Purchased item:

bdrury625 Mar 9, 2021

5 out of 5 stars

This tube has it all: looks, condition, test results, and OMG what sound! Thank you, Richard!

Purchased item: