Oscilloscope 34
Bell & Howell, Wheeling (Illinois)
- Country
- United States of America (USA)
- Manufacturer / Brand
- Bell & Howell, Wheeling (Illinois)
- Year
- 1970 ??
- Category
- Kit (Parts plus instruction) or building instructions only
- Radiomuseum.org ID
- 138644
-
- Brand: DeVry
Click on the schematic thumbnail to request the schematic as a free document.
- Number of Tubes
- 9
- Power type and voltage
- Alternating Current supply (AC) / 110 Volt
- Material
- Metal case
- from Radiomuseum.org
- Model: Oscilloscope 34 - Bell & Howell, Wheeling
- Shape
- Tablemodel, low profile (big size).
- Dimensions (WHD)
- 310 x 200 x 425 mm / 12.2 x 7.9 x 16.7 inch
- Notes
- Endgerät eines Elektoniklehrgangs der Firma Bell & Howell Schools
- Net weight (2.2 lb = 1 kg)
- 8.7 kg / 19 lb 2.6 oz (19.163 lb)
- Source of data
- - - Manufacturers Literature
- Author
- Model page created by Karlheinz Gützlaff. See "Data change" for further contributors.
- Other Models
-
Here you find 39 models, 35 with images and 11 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
All listed radios etc. from Bell & Howell, Wheeling (Illinois)
Collections
The model Oscilloscope is part of the collections of the following members.
Forum contributions about this model: Bell & Howell,: Oscilloscope 34
Threads: 1 | Posts: 2
There are two schematics on the page for the Bell & Howell (DeVry Institute) Oscilloscope model 34. It would appear there are likely two variations of this 'scope as the one I have has a different tube 6AF11 than any of the tubes shown in the first schematic. The second yellowed schematic is just a thumbnail and does not show clearly at all when downloaded.
I'm hoping that Karlheinz Gutzlaff has a better copy he can upload as the second schematic appears to match my machine.
What I am surprised about is there is NO fuse in this unit! What were they thinking! I am using a line fuse of 3/4A slo-blow for 120VAC operation.
This is similar to the Heathkit Laboratory 5" Oscilloscope model IO-12. I don't have any other Heathkit 'scope schematics and I saw on an old posting somewhere else that the person thought Heathkit was the source for DeVry Institute stuff. And I understand that Heathkit stuff was designed by some other company whose name I have forgotten - but I could be wrong.
Thanks!
John Robertson, 25.Mar.20