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| Components and Circuits For discussions about component types, alternatives and availability, circuit configurations and modifications etc. Discussions here should be of a general nature and not about specific sets. |
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24th Aug 2010, 4:12 pm
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#1 |
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Tetrode
Join Date: Mar 2006
Location: Brackley, Northants. UK.
Posts: 53
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Data sheet required for RS High Power voltage Regulator 305-989
Hi all
I am looking for a copy of the RS data sheet for an old high power voltage regulator moulded into a large heatsink, originally supplied by RS, stock number 305-989. RS have no information at all as it was discontinued maybe 20 years ago. Maybe someone has some old (probably 80's) RS catalogues tucked away somewhere and can give me some idea of the pinouts and spec etc. Thanks Martin |
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24th Aug 2010, 8:13 pm
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#2 |
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Octode
Join Date: Jan 2007
Location: Dorridge, West Midlands, UK.
Posts: 1,486
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Re: Data sheet required for RS High Power voltage Regulator 305-989
Just checked my 1981 and 1982 catalogues and drawn a blank.
Sorry i don't have any others until 2007. Good luck Chris |
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24th Aug 2010, 8:18 pm
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#3 |
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Octode
Join Date: Feb 2009
Location: Bletchley, Buckinghamshire, UK.
Posts: 1,223
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Re: Data sheet required for RS High Power voltage Regulator 305-989
Is this the same as a 308-152 (later renumbered as a 310-436) ?
Moulded in black plastic (a bit like an ILP amplifier) on a big heatsink, with 5 pins? Pin 1 +V in Pin 2 0V Pin 3 output Pin 4 current limit sense Pin 5 output voltage control I have a hand-written note of all the data, may be able to scan it |
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24th Aug 2010, 9:15 pm
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#4 |
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Tetrode
Join Date: Mar 2006
Location: Brackley, Northants. UK.
Posts: 53
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Re: Data sheet required for RS High Power voltage Regulator 305-989
Hi Dave
Yep, thats it, I would be glad of your notes. Thanks Martin |
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26th Aug 2010, 7:30 pm
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#5 |
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Pentode
Join Date: Jul 2009
Location: Brightlingsea, nr. Colchester, Essex, UK.
Posts: 209
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Re: Data sheet required for RS High Power voltage Regulator 305-989
The attachment is from the 1976/7 RS catalogue. I knew it would be useful one day. I hope it's clear enoug.
Bryan M |
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26th Aug 2010, 9:36 pm
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#6 |
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Octode
Join Date: Feb 2009
Location: Bletchley, Buckinghamshire, UK.
Posts: 1,223
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Re: Data sheet required for RS High Power voltage Regulator 305-989
Looks like Bryan's picture has exactly the same information as my notes - does this mean the case is now closed?
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27th Aug 2010, 12:27 pm
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#7 |
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Tetrode
Join Date: Mar 2006
Location: Brackley, Northants. UK.
Posts: 53
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Re: Data sheet required for RS High Power voltage Regulator 305-989
Hi Bryan
A good find. I can just about read it, but I would be very grateful of a close up scan of the suggested circuit with the values.  Many thanks Martin |
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29th Aug 2010, 9:40 am
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#8 |
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Pentode
Join Date: Jul 2009
Location: Brightlingsea, nr. Colchester, Essex, UK.
Posts: 209
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Re: Data sheet required for RS High Power voltage Regulator 305-989
Sorry about the quality of the previous post - I don't seem to have mastered the art of producing pics below the size limits. Try this one.
Bryan |
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29th Aug 2010, 7:49 pm
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#9 |
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Tetrode
Join Date: Mar 2006
Location: Brackley, Northants. UK.
Posts: 53
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Re: Data sheet required for RS High Power voltage Regulator 305-989
Hi Bryan
That's perfect! Thank you. This thread can now be closed. Martin |
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29th Aug 2010, 9:01 pm
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#10 |
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Octode
Join Date: Mar 2006
Location: Watford, Hertfordshire, UK.
Posts: 1,270
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Re: Data sheet required for RS High Power voltage Regulator 305-989
How informative the RS catalogues were then, but then I suppose the same goes for others like Maplin. Doubt if they will return like that
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