???"s i have just completed my first PJ build.Here is my set up 1 7"LCD 1 220mm fresnal 1 320mm fresnal 1 400w balast coil type 1 400w BT 37 4200k MH lamp 5 fans. The question is this i would like to overclock the lamp to increase the brightness of the over all projected image in order to do this i need to add a 2uf@660volt cap and wire it parallel with the current one to boost the wattage of the lamp to 575 watts is this correct?
You have the right idea, but a 2uf cap will not get you 575w and i doubt your bulb and ballast would last with it at that wattage. A 2uf cap will get you about 30-50watts for a total of about 430-450. Take a look at your current cap and find a 4uf cap with the same or better voltage rating. This will get you about 460-500watts. I wouldn't go much above this without extra colling on your ballast. Take into consideration that the more you over clock the bulb the more the color temp will blue shift. Start small and keep an eye on the temperature of the ballast.
Chevy were can i get a 4uf cap in the Us or in Canada as i am in Canada there is no supplier for these here in Canada and i have found only a couple on eBay.They are cheap but hard to find.Do you have any suggestions for me or should i just get this item through eBay. Here is a link to the cap that I've found will this work? http://cgi.ebay.ca/4-uF-400-V-Paper...0094103086QQcategoryZ4662QQrdZ1QQcmdZViewItem
I get my caps from a place called norvak. Its a general electronics store that sells all sorts of caps, resisters, etc. I would take a look in the phone book for electronics parts. It shouldn't be a hard item to find. Another good source is the online retailer Digikey. They have everything under then sun. Im sure they ship to Canada.
The overclocking is complete and i am very happy with the results the over all projected image is definetly brighter but i have nothing to compare it to i added a 4uf 400 volt capacitor wired parallel with the current one witch is a 24uf 400 volt capacitor and the results are very impressive .Thanks to all!!!
stable
What is the color like after the overdrive?
Is the arc stable or does it wonder some.
Who thougth of the term " Overclocking?"
Thanks
ArizonaVideo
What is the color like after the overdrive?
Is the arc stable or does it wonder some.
Who thougth of the term " Overclocking?"
Thanks
ArizonaVideo
Quick reply!!
The color is a little more blueish This color shift though is compensated by adjusting the LCD colors. and the arc doesn't wonder at all it is just fine .I have added 2 90mm fans,to cool the balast that i did not anticipate on adding however the balast gets really hot.The over all projected image is considerably brighter and the upgrade is very noticeable well worth the time and the $40.00,and now my bulb is between 460-500 watts!!Overclocking was used on my PC!!I just used that term.Technically it is overdriving!!
The color is a little more blueish This color shift though is compensated by adjusting the LCD colors. and the arc doesn't wonder at all it is just fine .I have added 2 90mm fans,to cool the balast that i did not anticipate on adding however the balast gets really hot.The over all projected image is considerably brighter and the upgrade is very noticeable well worth the time and the $40.00,and now my bulb is between 460-500 watts!!Overclocking was used on my PC!!I just used that term.Technically it is overdriving!!
I would like to state that all my overdriving knowledge came from
davedaxx@yahoo (aka ArizonaVideo) at another DIY projector forum😀 I think overclocking is just a convenient term ripped from computer modding.
davedaxx@yahoo (aka ArizonaVideo) at another DIY projector forum😀 I think overclocking is just a convenient term ripped from computer modding.
Overdriving?
Quick ? can i use an 8uf 400 watt cap wired in parallel to the 24uf factory cap that came with my m59 ballast using the bt37 400 watt mh bulb will this be o.k to use ?
Quick ? can i use an 8uf 400 watt cap wired in parallel to the 24uf factory cap that came with my m59 ballast using the bt37 400 watt mh bulb will this be o.k to use ?
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