Marshall-18Watt-电子管音箱-Layout

123456789R2C11R7C1R9R13R23R17C18R28R27C19R14R10R26R24C7R11R21C16R18R19R16R15C17R22C2R6R25R20C3C10C9123456789123456789123456789123456789123456789V1V2V3V4V5V6LOHILOHINORMAL(input)VOLTONETREM(input)VOLTONEINTENSITYSPEEDPOWERSTANDBYINDICATORR12R1C6C5C14C13R8R3R4C12R5ECC83/12AX7ECC83/12AX7ECC83/12AX7R34-500k-AR33-2M-AperforatedtagboardlayoutprovidedbyMarkHussC15C8watt.com1818WATTCOMMUNITYCENTERtofootswitch(shielded)Fuse18WATTLAYOUT(original)revized:April27,2004NOTES:-Thislayoutrepresentstheoriginalstock18WattCombo.ItwastraceddownafterIan'soriginal2x12combo.Ithasnoimprovements,orvaluechanges,etc.-Forneatnessandeasierrepresentation,thetransformerleadsarenotroutedundertheboard.-NotethatthethirdlugontheSTANDBY,isusedonlyasaconvenientspottosolderthosewires.ThereisnoelectricalconnectiontotheactiveSTANDBY,switchlugs.ThesearenormalDPSTswitches,butonlytheupperlugsareusedfortheactiveconnections.Inotherwordsyoucanuseasimpleswitchforthese.Apparentlythefactoryhadtheseswitchesathand,anddecidedtousethem.-Electrically,thecircuitisidenticalwiththeoriginal.R31-500k-AR30-500k-AR35-500k-AR32-1k-LMAINSINPUT=YELLOWH.T.300V.-0-300V.at120mAs.6.3V.3A.=BLUERED-BLACK-REDC.T.=GREYREC.COMMON=BROWN5V.2A.=WHITE6.3V.1A.=ORANGE=VIOLETSCREEN2AMPseeR29C20DPSTDPSTcomponentvaluevariantR1100kR2820R31mR41mR51.5kR68.2kR7100kR81mR9470kR102.7mR11100kR12220kR13820R14820R15470kR16470kR1747kR18100kR19100kR20125R218.2kR228.2kR23470kR24470kR25100R261mR2768kR2868kR29470kcomponentvaluevariantC10.01µFC216µFC3500µF/50vC4---C50.005µFC60.01µFC70.05µFC80.01µFC90.01µFC100.01µFC1150µFC120.005µFC130.005µFC14470pFC150.005µFC160.01µFC170.01µFC180.022µFC1950µFC2032µF+16µF2.2mEL84/6BQ5EL84/6BQ5EZ81/6CA4notes(log)(log)(log)(log)(log)(lin)othervalues: