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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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Thread Tools |
6th Mar 2014, 2:36 pm
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#1 |
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Hexode
Join Date: Jul 2007
Location: Edinburgh, UK.
Posts: 344
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Ediswan R1095 Stabalised HT PSU
Hi,
I am trying to repair a non-working Ediswan R1095 HT PSU. The printing on the two small valves (error amplifiers ?) is illegible; the series regulator valve is marked PEN and the rest is illegible. The voltage reference is an 85A1 and the rectifier is is a UU9. Has anyone got a circuit diagram for this unit? |
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6th Mar 2014, 3:14 pm
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#2 |
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Octode
Join Date: Jan 2009
Location: Falmouth, Cornwall, UK.
Posts: 1,990
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Re: Ediswan R1095 Stabalised HT PSU
Hi Ross,
You like this make, it was this time last year and an Ediswan 2001 power supply  You might try Ronbryan who had info on the E1280, might be similar ?
__________________
Stephen _________"It`s only an old telly"  ___
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6th Mar 2014, 4:24 pm
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#3 |
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Nonode
Join Date: Jan 2010
Location: Edinburgh, UK.
Posts: 2,008
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Re: Ediswan R1095 Stabalised HT PSU
First guess for the PEN would be PEN45. There are others in the PEN4x series so it would be worth checking them out.
http://www.r-type.org/exhib/aaa0205.htm Al
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I won't tell you how I discovered that. 
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6th Mar 2014, 5:03 pm
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#4 |
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Hexode
Join Date: Jul 2007
Location: Edinburgh, UK.
Posts: 344
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Re: Ediswan R1095 Stabalised HT PSU
Hi,
Here are a couple of photographs of the power supply. It is adjustable from 120V to 250V at 50mA max. |
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7th Mar 2014, 12:00 pm
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#5 |
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Hexode
Join Date: Jul 2007
Location: Edinburgh, UK.
Posts: 344
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Re: Ediswan R1095 Stabalised HT PSU
Hi,
I got in touch with ronbryan and he sent me a circuit diagram of a much more complex EDISWAN power supply; but it is a good starting point. Ross |
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