12V‘HighPower’kitinstructionsPageof412V‘HIGHPOWER’PULSERKITASSEMBLYINSTRUCTIONS‘HighPower’PulserKitR1470k(YPBO)1offR2/R2a47kthermistorsattachedtoQ1&D12offR3/4/5330R(OOBB)3offR61k8(BrGyBBr)or(BrGyR)1offC1100uF1offC20.0022uF/2.2nF(smallyellow–marked2n2)1offC30.047uF/47nF(yellowoblong–marked0.047)1offC42200uF1offC50.1uF1offLED1offD1BYW29-200orsimilar1offD21N54041offQ1IRFG9630orsimilar1offIC15551off8pinDILsocket1offZD115V1offL1100uHinductor(marked101LQ5N)1offL21000uHinductor(marked102LQ4D)1off4mmbolt2off4mmnut4off4mmwasher4offFuseholder1offFuse(1spare)2offPCB1offResistorColourCodes:B–black,Br–brown,GY–Grey,O–orange,P–purple,R–red,Y–yellowDONOTCONNECTTHEPULSERTOTHEBATTERYCHARGER–CONNECTITTOTHEBATTERY&THENCONNECTTHECHARGER.MAKESURETHEBATTERYCHARGERISUNPLUGGEDFROMTHEMAINSSUPPLYBEFORECONNECTING/DISCONNECTINGCheckallcomponents/partsaslistedabovearepresent.Carefullyremovethe555chipfromitsDILsocket,donotinsertuntilafterallsolderingofboththesocketandimmediatelyadjacentcomponentsiscomplete.PleasenotethattheICshouldbeinsertedwiththedot(indentation)onthedevicenearesttoC2onthePCB.Youcanchoosetosolderthe4mmboltstothePCBorsolderyouroutputcablesdirect.Tosolderthe4mmnutsandboltstothePCByouwillneedtodrilloutthetwo3.3mmholesmarked–veand+veto4mm.Thenplaceaboltthrougheachholeandsecuretightlywithanut.Theboltstakeafairbitofheatingbutthesolderwilltakeeventually.Asyouwillseefromthepicturesonthewebsitethesoldermaskdoesbubbletoreflecttheamountofheatbeingusedatthispoint.Componentscanthenbeinsertedinanyorder,obviouslyexcessiveheatshouldbeavoided.I’massumingyouareawarethatthebandonanelectrolyticcapacitorindicatesthenegative!!InthecaseofC4thebandedsideshouldbeclosesttotheC5position.TheoutputdiodeD1andtheMOSFETshouldbesolderedtotheboardlastandthethermistorsleadscarefullyfoldedandfedthrou