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Treasure Hunting & Metal Detecting Forum Message Boards - Detector Hunter Whites Minelab Tesoro XP > Tech Talk > Metal Detectors (Moderators: Eugene52, xavier, GoldDigger1950) >

ICL 7660 replacement

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dbanner Topic starter

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	ICL 7660 replacement « on: November 08, 2014, 06:25:26 pm »

I have lots of NE555 timers but no ICL7660 for my SurfP.I. project. I am thinking of using 555 pump charge circuit along with 7805 and 7905 to generate my + and - 5Volts for the power supply.Can anyone tell me if this is a good idea or is the 7660 a must. I have seen other p.i. detectors using a 555 pump charge circuit for the power supply. What's so darn special about the 7660 anyway, except for maybe a few less supporting components.

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	Re: ICL 7660 replacement « Reply #1 on: November 08, 2014, 08:54:24 pm »

have a look the link.

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http://www.futurlec.com/cgi-bin/search/search.cgi

you will need to type LCL7660
they will ship anywhere and it cost very little.

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	Re: ICL 7660 replacement « Reply #2 on: November 08, 2014, 11:31:29 pm »

7660 is a Low Dropout Regulator.

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	Re: ICL 7660 replacement « Reply #3 on: November 09, 2014, 10:56:14 am »

1 Dollar each on Flea-Bay [E-Bay] !!!! LOL

Even a couple substitutes that might work, Google-it !!
Or build an equivalent circuit , one was done on another forum a while back .

Regards........HH........Eugene

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	Re: ICL 7660 replacement « Reply #4 on: November 09, 2014, 12:12:57 pm »

There NOT that hard to find. The More you Deviate from the Original the More Problems you are going to have. They Used that to keep the detected signal from Flashing around. Just us it.

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	Re: ICL 7660 replacement « Reply #5 on: November 10, 2014, 09:47:43 pm »

here is my solution. ripped it off of the old proscan p.i metal detector(sandbanks). It will work without any effect on performance.

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	Re: ICL 7660 replacement « Reply #6 on: July 01, 2015, 02:57:57 pm »

i do not think you can fined replacement for it but i have bad memories about this IC Undecided

good luck

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	Re: ICL 7660 replacement « Reply #7 on: April 02, 2021, 04:50:37 am »

You can use 7662 ,this one geos 18 volt ,and give you -18 volts,maximums.

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