Master Volume Mod Kit for JTM45, JTM50, 1987 Lead, JCM800 2204A(50W), JCM800 2203A(100W), TW Express, & 5E3. PPIMV (Post-Phase-Inverter-Master-Volume) is by far the most transparent MV that can be added to an amplifier, due to it's location in the circuit being after the preamp gain stages and phase inverter. When it is turned to max, it is essentially taken out of the circuit (ala Matchless type MV). The layout listed is for implementing this Mod in a JTM50 circuit, but will easily translate to any of the circuits listed above without issue. Mod Kit includes Dual 250KA pot, (2) 2.2M resistors, 2FT 2-conductor shielded cable, & knob. If you love the tone of your amplifier when it's cranked but can't get that tone at lower volumes, then this Mod is just what you need!

Master Volume Mod Kit Layout
Master Volume Mod Kit Instructions

MASTER VOLUME MOD KIT (PPIMV) mastervolumemodkit$13.95

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