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Old 18th Jan 2021, 3:36 pm   #1
Chris55000
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Default Open University Generator & Oscilloscope?

Hi!

Has anybody seen one of these featured in Open University programmes before?

I haven’t got round to unpacking and investigating it yet – it was bought "as is" with a fault on it, but physically it bears some resemblance to the "PE Investigator" published as a Construction Project May/June 1967!

Circuits will eventually be drawn out when my spare time permits, but I've no info on it's specifications as of yet!

Alas to say I missed out on two others sold three years ago that were in much nicer condition!

Chris Williams
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Old 18th Jan 2021, 5:25 pm   #2
kevinaston1
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Default Re: Open University Generator & Oscilloscope?

Yep, had one when I did T202; a great many years ago.
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Old 18th Jan 2021, 8:10 pm   #3
cliff2903
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Default Re: Open University Generator & Oscilloscope?

The generatorscope has been mentioned on here a couple of times, once looking for the cct diagram and another thread about vector diagrams. I was looking for one of these myself last year as I had a complete set of the T202 coursework and fancied having a go at it however the lack of hardware pursauded me to sell it on. The original course videos are available on YouTube
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Old 19th Jan 2021, 6:50 am   #4
Diabolical Artificer
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Default Re: Open University Generator & Oscilloscope?

Quote:
The original course videos are available on YouTube
Are they, that's good news I used to love OU, never did a coarse though.

What's it like inside Chris valve or tranny (or both).

Andy.
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Old 19th Jan 2021, 9:56 am   #5
Terry_VK5TM
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Default Re: Open University Generator & Oscilloscope?

Also known as the Foxall HK/2A

Some internal pics here https://www.worthpoint.com/worthoped...xall-166438473
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Old 20th Jan 2021, 10:00 pm   #6
Chris55000
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Default Re: Open University Generator & Oscilloscope?

Hi!

The oscilloscope has a single–sided epoxy glass PCB covering all the right hand side with two valves on it, I've not yest investigated mine to find out what they are yet!

A simple mono–accelerator CRT is used and a very basic single channel vertical amplifier and timebase is provided.

Unlike the B.N.R.E.S. "Learnakit" home assembly scope, this unit has four or five calibrated settings for both vertical gain and timebase speed.

I am working out how I can incorporate in my T & M book – I have finalised the book at 16 Parts, 190 Chapters, but I can easily incorporate this instrument as sub–sections of the appropriate main chapters if need be!

By the way, the one I got is distinctly moth–eaten, if any Member has a tidy one they're willing to part with for (hopefully!) a smarter case and matching knobs, please PM me!

Chris Williams
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Old 20th Jan 2021, 11:12 pm   #7
cliff2903
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Default Re: Open University Generator & Oscilloscope?

Oops sorry, course was T283 not T202
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Old 21st Jan 2021, 6:46 am   #8
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Default Re: Open University Generator & Oscilloscope?

Quote:
The oscilloscope has a single–sided epoxy glass PCB covering all the right hand side with two valves on it, I've not yest investigated mine to find out what they are yet!
Part of the CRT EHT supply?

Quote:
Oops sorry, course was T283 not T202
Your right, i watched a couple of episodes yesterday, it's still relevant and well explained.The Generatorscope in the program was different,it had a square display, but the ones I saw must have been late 70's/early 80's complete with sartorial elegance and mad hair cuts.

Andy.
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