[Test-Equipment] GR 1800A VTVM

[Richard Knoppow]

-----Original Message-----
>From: Barry <n4buq at knology.net>
>Sent: Dec 19, 2013 11:22 AM
>To: Discussion of Electronic Test Equipment <test-equipment at mailman.qth.net>
>Subject: Re: [Test-Equipment] GR 1800A VTVM
>
>Are there any examples or pictures of the 774 series on the net?  I looked but, unless I don't recognize what I'm seeing, I didn't find any.
>
>I still don't quite know how these fittings are supposed to be assembled to make a different style connector.  The "double banana" arrangement is obvious enough, but don't understand how the other fittings are supposed to be used.
>
>Thanks again,
>Barry - N4BUQ


     See the description of an earlier UHF voltmeter at:

www.ietlabs.com/pdf/GR.../1946/GenRad_Experimenter_Oct_1946.pdf‎

This has a photo of the 774 fittings for the probe.  The 774 could use a banana plug on the male side and also had a screw-in female adaptor.
     The IET labs site has a complete collection of the 
"General Radio Experimenter"    I have not searched them to see if there was an article on the 774 connector but there certainly is on the 874.  The 874 is hermaphroditic, that is, any two connectors will mate while the 774 was a conventional male-female type.