Videokarma.org TV - Video - Vintage Television & Radio Forums

Videokarma.org TV - Video - Vintage Television & Radio Forums (http://www.videokarma.org/index.php)
-   Diagnostic & Test Equipment (http://www.videokarma.org/forumdisplay.php?f=177)
-   -   Awesome Pickup: RCA TMV-122b Oscillograph (http://www.videokarma.org/showthread.php?t=262906)

Jon F 10-25-2014 10:14 PM

Awesome Pickup: RCA TMV-122b Oscillograph
 
5 Attachment(s)
Recently bought an RCA TMV-122b, maybe the closest I'll get to a prewar TV set. It is in great shape with original RCA 906 CRT with clear envelope. Really nice looking chassis. Seller claimed it powered up and what would you know, still works and looks original from what I can tell. Impressive.:thmbsp:

Probably will leave in this condition as a show piece.

N2IXK 10-26-2014 09:56 AM

Very cool! That was the very first scope I ever owned as a kid. It was given to me by an old guy in the neighborhood who ran a radio/TV shop for many years. I remember how heavy that beast was, particularly the thick steel case.

Used it for a few years until the power transformer HV winding shorted out.:tears:

The CRT in mine was a DuMont replacement 3AP1, but I now have a clear envelope 906 in my tube collection. A wonderful tube for explaining how a CRT works, because you can see every part of the thing!

JBL GUY 10-26-2014 12:38 PM

Very nice!

Thanks for the pictures.

Tubejunke 10-27-2014 01:39 AM

Very nice indeed! Great find. I love working original equipment.

ChrisW6ATV 10-27-2014 08:25 PM

Nice. I have a pre-war Clough-Brengle "oscillograph" that I bought at a ham radio flea market around 1980. At that time, it still worked as-is, but I will not power it up again until I restore it at some point.

VTVM 12-22-2014 10:37 PM

Coolest thing I've seen in a long time!

Tim Tress 03-10-2019 05:45 PM

I just stumbled across this old thread.... That was my first oscilloscope, almost 50 years ago; I found it at a junk store. The power transformer was missing, so I rewound a TV transformer to get the three 2.5 volt filament windings required, and used a Sylvania Halolight transformer for the high voltage. The damn thing worked! It's still out in the shed.

Dude111 03-11-2019 04:53 AM

Im glad it works good for ya!!!

JON I hope your still enjoying yours :)


All times are GMT -5. The time now is 09:53 AM.

Powered by vBulletin® Version 3.8.4
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
©Copyright 2012 VideoKarma.org, All rights reserved.