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Vintage Test Gear and Workshop Equipment For discussions about vintage test gear and workshop equipment such as coil winders. |
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20th Jan 2019, 2:11 pm | #1 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Oxxford Instruments 2137 MPSU
Just found this whilst poking about looking for HMV 2126 (I guess it came up because there was a 2126 MPSU too).
It's a unit I worked on the design of back in the early '80s used for running up an early OXFORD superconducting MRI magnet. Bit of nostalgia and nice to hear it still works after 36 years in service! https://www.ebay.co.uk/itm/OXFORD-IN...-/231942077875 It's a conventional 3-phase rectified choke input filter basic supply with a watercooled linear regulator (about 50 RCS258s if I recall). The Hubbell mains inlet looks like an aftermarket fit- the original probably wouldn't have met with UL approval. It has a control unit with a switched rate sweep generator and operates in variable constant current mode with a two volt compliance limit.
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20th Jan 2019, 5:52 pm | #2 |
Dekatron
Join Date: Nov 2010
Location: Oxford, UK.
Posts: 4,991
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Re: Oxxford Instruments 2137 MPSU
Who was running OMT back then? I ran engineering at the Research Instruments Division during the 90's - worked for John Pilcher.
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20th Jan 2019, 10:56 pm | #3 |
Dekatron
Join Date: Feb 2007
Location: Leominster, Herefordshire, UK.
Posts: 16,536
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Re: Oxxford Instruments 2137 MPSU
I think it was Nick Randall.
The 2137 was a development of the 2115 150A 10V unit used on an OI magnet and was developed before the electronics dept I was in was transferred to OMT around 1984. We lived away from the Osney Mead site out at the ARC site at Wootton before OMT moved en masse out to the new Eynsham factory. Roger Littlewood was electronics manager who I believe reported to JP. There was a whole bunch of them that drank in the Greyhound ISTR.
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....__________ ....|____||__|__\_____ .=.| _---\__|__|_---_|. .........O..Chris....O |