HAMMOND - 1590A, 5(4+1)knobs, 3PDT foot switch specifications.
9V (006P) battery can be installed.
The control knob arrangement is the same as the original.
The trimmer was exchanged for a part that can be turned with fingers.
Compact and lightweight. Since it does not require an external power supply,
it can be connected by hanging it to the "input terminal" or "send & return terminal" of the amplifier.
Unnecessary cables disappear from the feet and the pedal board,
and it is possible to obtain the warm sound of Jan Ray even from the cold impression amplifier.
it can be connected by hanging it to the "input terminal" or "send & return terminal" of the amplifier.
Unnecessary cables disappear from the feet and the pedal board,
and it is possible to obtain the warm sound of Jan Ray even from the cold impression amplifier.
Depending on the position of the battery,
the foot switch had to shift from the center to the side.
So I thought of using the illusion of the human eye.
By digging angled grooves and adjusting the position of the knob,
usability like a normal pedal was obtained.
At the rear is a DC jack and a trimmer as the fifth knob.
It is possible to close back cover without gaps.
Almost all parts touch each other on a flat surface to prevent loosening.
Regarding electrical insulation treatment and physical clearance for safety,
I will update it later.
part 1
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