Tenma 72-330 oscilloscope manual?

[Axtman]

I picked up a nice little oscilloscope for $15. It needed very little work other than a good cleaning and lubricating. I only needed to do a minor repair one selector switch.

Does anybody have the manual for this scope? I need to slightly calibrate it. Thanks!

[Axtman]

Never mind. Someone on another forum indicated that it is a rebranded Hung Chang Model 0S-635. A little surfing around the net and I found the manual.

[vintagekiki]

https://www.eevblog.com/forum/testgear/tenma-72-330-oscilloscope-manual/msg1353889/#msg1353889

https://www.allaboutcircuits.com/test-measurement/oscilloscopes/os-os-635/manual/
Hung Chang Model 0S-635

https://elektrotanya.com/hung-chang_protek_os-635_2ch_35mhz_oscilloscope.pdf/download.html
Hung Chang Model 0S-635

https://www.allaboutcircuits.com/search?q=tenma

[Tom Phillips]

...Someone on another forum indicated that it is a rebranded Hung Chang Model 0S-635...

That may have been in the discussion at http://music-electronics-forum.com/t44815/ .
See post #53 for the re-branding comments and, for others seeking information about oscilloscopes, there is a lot of useful information in the thread.