Before network analyzers, there were slotted lines.

Logic: Method used to arrive at the wrong conclusion, with confidence.  Murphy


On Thursday, June 19, 2025 at 06:56:29 AM CDT, Nick England <[email protected]> wrote:


100-225 Mc concentric line standing wave measurement equipment. 

See pdf page 44 here

The 1963 directory of USN test equipment is here


On Wed, Jun 18, 2025 at 10:58 PM Hubert Miller <[email protected]> wrote:

No, not "Off Topic", but USN model OT equipment. What was it ?
-Hue Miller


Sent from my Galaxy

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