Bell and Howell Model 34 Oscilloscope
Bell and Howell Model 34 Oscilloscope
I have started to repair this scope. I can put a signal to the vertical input and see a sign wave on the CRT. I see this only if the sync control is turned all the way clockwise. When I start to turn the sync to the left I loose the waveform at about three o'clock . I have the schematic and the sync control comes off the plates of the 12BH7.
All the other controls seem to work fine. When I loose the waveform I get a vertical line?????
All the other controls seem to work fine. When I loose the waveform I get a vertical line?????
CHUCKSUE- Member
- Number of posts : 26
Registration date : 2013-07-04
Re: Bell and Howell Model 34 Oscilloscope
Hi, Wonder where you got a schematic for the 34. I have the scope but I thought that it was patterned ater a Heathkit but don't know which one. Can you help me find a manual/schematic? Thanks, Marvin
mmoss111- New Member
- Number of posts : 1
Registration date : 2018-07-11
Re: Bell and Howell Model 34 Oscilloscope
https://www.eserviceinfo.com/index.php?what=search2&searchstring=Bell%26+Howell+model+34+oscilloscopemmoss111 wrote:Hi, Wonder where you got a schematic for the 34. I have the scope but I thought that it was patterned ater a Heathkit but don't know which one. Can you help me find a manual/schematic? Thanks, Marvin
Chas- Member
- Number of posts : 150
Age : 73
Registration date : 2008-07-24
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