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  1. JTM45 choke question

    Amp Building/Technical/Repair
    I'm presently sourcing parts to build a JTM45 clone, most builders are using a choke rated at about 5 to 7 Henries while the original Marshall schematic call for a 20 Henries choke. Can someone explain me the difference it can make to use a 5 H or a bigger like 20H choke ? I understand that...