I-177-B Tube Tester

[bandersen]

Originally Posted by JohnHacker1

Guts look healthy! I have an I-177-A made by Munston Mfg. and Service, Inc. Tube chart TB is dated 1946. Was made for the U.S. Army Signal Corps. Works good and is handy for checking older tubes.

Yes, it's working very well with my older tubes I have other testers I can use for newer tubes.

Originally Posted by toober

As you have probably figured out by now, you have the 1952 version of the I-177, made for the US Army. Clearly it was obsolete at the time, but when the US went to war in Korea, we basically fought with World War 2 surplus. And sometimes the military found out that they had sold off needed things in the late 1940s, and had to reorder them (at great expense, mind you).

I sold the MX-949/U adapter a long time ago. I do not miss it - they are a pain to use.

--
Will

Yes, I finally noticed the 52 on the nameplate and on the manual

I had a feeling the MX-949/U is a pain with all those patch cords.