phase controller

vinper · Post by **vinper** » Tue Jun 19, 2012 10:00 am

On the pamolli thread there are 2 builds 1 with the prs-25 the other with ssrman and relay.... does the prs-25 have the phase controller already built in? seems like less parts and the cheaper one to build..

Post by **rad14701** » Tue Jun 19, 2012 11:57 am

vinper wrote:On the pamolli thread there are 2 builds 1 with the prs-25 the other with ssrman and relay.... does the prs-25 have the phase controller already built in? seems like less parts and the cheaper one to build..

All the PSR-25 requires is a potentiometer to function properly... A 500K Ohm 1W - 2W as I recall... And a heat sink, of course...

vinper · Post by **vinper** » Thu Jun 21, 2012 6:55 am

Is potent meter 250k or 500k? the build says 250k

Post by **rad14701** » Thu Jun 21, 2012 7:07 am

vinper wrote:Is potent meter 250k or 500k? the build says 250k

I re-checked the manufacturers specifications and they state 250K 1W for 240V or 100K 1W for 120V... Whether those are real-world application numbers or not is subject to debate, however... If you go bigger you can always run a parallel resistor to fine tune performance... And for cheaper potentiometers you might want to go with a 2W rating...

Post by **MuleKicker** » Thu Jun 21, 2012 5:19 pm

If you are going to start it out with 110v and move to 220, You can use the 250k pot for 220v, the control isnt quite as fine though. That way you wouldnt have to change the controller at all if you make the switch.

vinper · Post by **vinper** » Fri Jun 22, 2012 6:22 am

I am going 220v right up front. so are you saying go with 1w 500k. need a link when looking for them way to many options

Post by **MuleKicker** » Fri Jun 22, 2012 6:23 am

vinper wrote:I am going 220v right up front

'at a boy. Go big or go home.

Post by **rad14701** » Fri Jun 22, 2012 11:15 am

vinper wrote:I am going 220v right up front. so are you saying go with 1w 500k. need a link when looking for them way to many options

250K 1W or 2W for 220V...

vinper · Post by **vinper** » Fri Jun 29, 2012 11:41 am

The heat sink listed @18.00 is now $35.00 . I dont know how to size them . looks like 4.5 x4.75 anybody have a link

Post by **MuleKicker** » Fri Jun 29, 2012 2:03 pm

HERE? I didnt have a problem, looks like about 8+ dollars +shipping.

vinper · Post by **vinper** » Mon Jul 02, 2012 11:16 am

the one thats 7.2" x 4'' ... ? not sure which one

Post by **NcHooch** » Mon Jul 02, 2012 12:54 pm

I put one of these together recently using an old PC cpu heat sink , it was 5" x 3.5" x 2" tall...cool as a cucumber.

bez · Post by **bez** » Fri Jul 06, 2012 8:39 pm

i used an amd socket 939 cool master heatsink and fan for one i had it laying around from a pc build i did and had leftover, for 2 since i needed power for the ammeter i just wired the fan into the mix and presto runs cool and easy. i first started out with a router speed controller but i didnt like how there was a range that was cut out, so thats why i built the psr-25 build and i wont look at anyother controller as this one is PERFECT!!!!
http://homedistiller.org/forum/viewtopi ... =2&t=27380

Post by **MuleKicker** » Sat Jul 07, 2012 6:20 pm

vinper wrote:the one thats 7.2" x 4'' ... ? not sure which one

No its not. Its 4.230" X as long as you order it.

vinper · Post by **vinper** » Mon Jul 09, 2012 11:32 am

ok ordered it was part 6$+Handling 5$+shipping9$ = 21$

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