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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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14th Oct 2015, 9:17 am
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#21 |
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Heptode
Join Date: May 2008
Location: Selby, North Yorkshire, UK.
Posts: 951
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Re: Farnell Bench Power Supply LT30-2
Just borrowed an LT30-2 from work and need to set constant current. Came online to search for the manual, and lo! The forum has me sorted instantly!
Thanks for the manual! Martin
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I got food in ma belly and a license for ma telly My Blog - http://g7mrv.blogspot.com |
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23rd Jan 2016, 12:28 am
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#22 |
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Octode
Join Date: May 2003
Location: Belper Derbyshire
Posts: 1,935
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Re: Farnell Bench Power Supply LT30-2
In an earlier thread I mentioned that I replaced one of the coarse voltage control pots which had gone intermittent with a Bourns 5K 10 turn type and I have now got very good voltage control as it takes 10 turns rather than a single turn to swing between 0-30 volts.
Recently the current limit pot had gone intermittent and the current limit would swing wildly when the knob was touched and so tonight I replaced it as well with a Bourns 10 turn pot. I now have very good current setting resolution and can almost set the current limit to 1-2 mA of a desired value anywhere from 7mA to 2A When time permits I shall swap the left hand channels pots over from single turn types to 10 turn types. Christopher Capener
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Interests in the collection and restoration of Tefifon players and 405 line television |
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