19-05-2017, 01:05 PM
(This post was last modified: 19-05-2017, 01:10 PM by pwdrive.
Edit Reason: word change
)
The National HRO used a bridge circuit for it's S meter:
http://www.cryptomuseum.com/df/hro/files/hro_manual.pdf
Lawrence.
http://www.cryptomuseum.com/df/hro/files/hro_manual.pdf
Lawrence.







