2 lamps in series would be fine - but when 1 blows / dies both will go out !
LED's work fine with DC - BUT you do need a series resistor to limit the current to about 10/15 milli Amp - a good rule is about 820 Ohms for 12 Volts - So for 55 Volts 3,200 Ohms should do the trick. Remember that LEDS are like diodes - they only work one way round on DC, so if it don't work this time - turn the LED connections arround. One more thing - If you have BIG caps in your power supply the LED could well stay on for a LONG time after you ditch the power ! Rgds Dave Fisher UK -----Original Message----- From: Torsten [mailto:[EMAIL PROTECTED] Sent: 25 October 2004 18:17 To: [EMAIL PROTECTED] Subject: [CAD_CAM_EDM_DRO] Two Lamps? Got a question, I have a Powersupply delivering 55 volts DC in my driverbox connected to a Caps to store and smuth out the current having been zapped a few times I would like to hook up a little light bulb to drain out the current after it is shut off. Would also be nice for the visual feedback to see when the thing is charged. On the first attempt I learned that a Led dose not work with DC current. So now I am Looking at some Bulbs with a filament. What I found is a "Miniature Bayonet base Lamp" rated for 28 volt .040 amps I belive I should be able to wire two of them in serial to make it work on my 55 volt system. Will this work? Any thoughts, please share. Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links Addresses: FAQ: http://www.ktmarketing.com/faq.html FILES: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/files/ Post Messages: [EMAIL PROTECTED] Subscribe: [EMAIL PROTECTED] Unsubscribe: [EMAIL PROTECTED] List owner: [EMAIL PROTECTED], [EMAIL PROTECTED], [EMAIL PROTECTED] Moderator: [EMAIL PROTECTED] [EMAIL PROTECTED] [EMAIL PROTECTED] [Moderators] URL to this group: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO OFF Topic POSTS: General Machining If you wish to post on unlimited OT subjects goto: aol://5863:126/rec.crafts.metalworking or go thru Google.com to reach it if you have trouble. http://www.metalworking.com/news_servers.html http://groups.yahoo.com/group/jobshophomeshop I consider this to be a sister site to the CCED group, as many of the same members are there, for OT subjects, that are not allowed on the CCED list. NOTICE: ALL POSTINGS TO THIS GROUP BECOME PUBLIC DOMAIN BY POSTING THEM. DON'T POST IF YOU CAN NOT ACCEPT THIS.....NO EXCEPTIONS........ bill List Mom List Owner Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/CAD_CAM_EDM_DRO/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
