Marble Custom 2240 Blues Harp Amp

Lovely amp designed for Blues Harp (Harmonica) making strange crackling noises...Lovely amp designed for Blues Harp (Harmonica) making strange crackling noises…Nice 2x8" Jensen SpeakersNice 2×8″ Jensen SpeakersPine cabinetPine cabinetDSC_9383DSC_9389DSC_9388DSC_9387DSC_9386Tubes out for testing (except rectifier tube)Tubes out for testing (except rectifier tube)DSC_9384All tubes tested good but still crackling preamp around the middle preamp tube..All tubes tested good but still crackling preamp around the middle preamp tube..Turned out to be a 250pF silver mica capaictor that was defective. Here it is cut out and the noise disappeared.  I replaced with a new cap and she was singing sweetly again!Turned out to be a 250pF silver mica capaictor that was defective. Here it is cut out and the noise disappeared. I replaced with a new cap and she was singing sweetly again!DSC_1137Original 2x8 Ceramic Jensen custom designed speakersOriginal 2×8 Ceramic Jensen custom designed speakersReplacement Weber Alnico 8" and 10"speakersReplacement Weber Alnico 8″ and 10″speakersDSC_1145Dust cover from magnetDust cover from magnetHuge alnico magnets in the Weber Replacements!Huge alnico magnets in the Weber Replacements!DSC_1142Trial position of chassis, magnet too close to output tubes.. dropping the smaller speakers improves mattersTrial position of chassis, magnet too close to output tubes.. dropping the smaller speakers improves mattersDSC_1146Old baffle out¬Old baffle out¬New black cut and size checkedNew black cut and size checkedDSC_1154Holes cut!Holes cut!Blackboard paint drying...Blackboard paint drying…Drilling holes for the screwsDrilling holes for the screws Grill cloth back onGrill cloth back onBaffle back in the cabBaffle back in the cabDSC_1159Speakers fittedSpeakers fittedNeeds chassis nowNeeds chassis nowChassis inChassis inWill the tubes fit?Will the tubes fit?yepyepnot bad!not bad!Some space before the magnets!Some space before the magnets!DSC_1176Preamp tubes have clearance!Preamp tubes have clearance!DSC_1168With an old pair of PM 6L6 tubes no hum and sounding sweet... great speakers!With an old pair of PM 6L6 tubes no hum and sounding sweet… great speakers!DSC_1172New tubes... big bottles!New tubes… big bottles!DSC_1204DSC_1203Plug socket added to help store the lead safelyPlug socket added to help store the lead safelyDSC_1179Leonid's pedal board. Some great sounds to be had!Leonid’s pedal board. Some great sounds to be had!DSC_1223Rechargeable battery for the pedal board.. neat idea!Rechargeable battery for the pedal board.. neat idea! Nice Dutch Blues Harp (Harmonica) amplifier which was crackling due to a dodgy capacitor… She got a full service and was singing sweetly again. Based on a tweed bassman she sounds great! She then came back in later to undergo a speaker revamp from a 2×8 Ceramic Jensens to a 1×8″ and 1×10″ Weber Alnico speakers… Made her sound even sweater IMHO.. TOugh job squeezing them in!

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