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Title: Model I-177B Dynamic Mutual Conductance Tube Tester
Item: [I-177B] $100.00

Model I-177B Dynamic Mutual Conductance Tube Tester Model I-177B Dynamic Mutual Conductance Tube Tester
Model I-177B Dynamic Mutual Conductance Tube Tester Model I-177B Dynamic Mutual Conductance Tube Tester
Model I-177B Dynamic Mutual Conductance Tube Tester Model I-177B Dynamic Mutual Conductance Tube Tester
Model I-177B Dynamic Mutual Conductance Tube Tester Model I-177B Dynamic Mutual Conductance Tube Tester

Title: Model I-177B Dynamic Mutual Conductance Tube Tester
Item: [I-177B] $100.00


Condition: used (needs to be repaired - see notes below)

Model I-177B Dynamic Mutual Conductance Tube Tester


Here is an I-177B Military tube tester.
This tester is a dynamic mutual conductance tester (the best kind).
It uses two tubes 80 and 5Y3. The 5Y3 checks ok, but the 80 tube is missing.
There is no manual with this tester, but the setup chart is provided. The manuals can easily be found on the internet.

The lid has a somewhat large dent in it and the bottom has some smaller dents, but overall it is still intact.
The power cord is in good condition.
The sockets are all tight.
The tube cap clip cable is a replacement, but is still functional.
It is missing the 80 tube. I did swap in the 80 tube from my 533 tester and powered it up. It checked a 6SN7 tube ok with the correct reading on the first triode section, but the needle didn't move on the second section test, so likely there is a short or broken wire someplace for that section. Since it tested half the tube ok, it seems likely to be repairable.

Packed shipping weight is 22 pounds
Box : 18x12x10


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We will let you know the total price including shipping and handling.

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Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com

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Contact MDB Ventures
sales@mdbventures.com
or
sales@fourwater.com