Oscope Dumont 190

[infinia]

Hi All
Just getting back in to audio again.
Went to turn on the ol'Scope and nada. Seems like the timebase/Hor sweep plug-in has a problem. With the beam finder I can get the CRT dot to move up and down but it wont sweep. I'm bummed this worked fine a few years ago. Anyway I need help locating a schematic/service repair document for it.

Dumont Model 190 series
with 1908 plugin & 1913 plugin

I think its a early seventies USN issue
Thanks for any help

 

[lndm]

Is this a valve unit or ss. I had a Telequipment Serviscope with a temperamental sweep that eventually wouldn't sweep. It was just a matter of low emission. Most of the valves were fairly equally worn out.

 

[infinia]

Hi
scope is SS (dual 60M delayed sw).
I think it is quite nicely built and would hate to toss it.
Should be many units floating around here in SoCal. Guy I bought it from, mostly sold manuals at the ham fest in LA (go figure) but lost contact.
Note sure if it would be worth having it sent to a shop.

I was hoping someone from the forum can give me a couple of leads to hunt down a schematic.

 

[lndm]

I happen to be looking for a scope manual myself just now. Good Luck.

 

[cajundad]

Dumont scope

I have schematics for Dumont 190 oscilloscope if that helps anyone. Email me at art@thebouvierfamily.com