Electroharmonix Pulsar Guitar Tremolo Effects Unit Repair

Electronic equipment manufacturers engineer item post-sale repair impossible. Spin-off benefits are cheaper initial retail cost, consequent of larger unit volume production. Another is that users will have the latest tech, owing to disposal of the previous model. Generated is capital, which funds research into a subsequent improved tech. Careful examination of the Electroharmonix Pulsar tremolo unit will reveal the potentiometer terminations are used to support /fasten the printed circuit board to the case. These are unusually long and an attempt at removing the PCB for service purposes requires knob removal. These are securely fastened to the potentiometer shafts, without grub screws, and more than likely, the shaft would come out of the potentiometers before the knobs would come off. The Hoofbag has some past experience of units such as this. Attempts to de-solder the potentiometers from the PCB would result in the tracers peeling off. This Electroharmonix Pulsar worked with battery but not via the DC supply socket. It was decided that battery use was surplus to requirement. Here, we included an additional LM78L05 regulator as a substitute to the one already on the PCB.

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