Before Boss, Electro-Harmonix, MXR and guitar effect pedals as we know it today, there was Maestro. The brand was under the Gibson family and is responsible for the first guitar "stomp box" known as the FZ-1 Fuzz Tone. They subcontracted to different makers to create a wide array of products including Tom Oberheim's creation of the PS-1 Phase Shifter.
Effects for guitar, effects for synths, effects for guitars that turned the sounds into synths, they made just about every cool effect you could think of, including a rotary speaker that looks like the inspiration for the Bose home iPod dock (pictured above). We are fortunate to have a couple of Maestro's awesome products at the store right now, all which have stood the test of time.
Maestro Rhythm King Mrk-II (450$)
(From 1972 catalog) "Long live the king...Maestro Rhythm King. It is the finest professional rhythm unit available at any price. Offers 18 programmed, authentic rhythms. And 8 flawless voices. Whether you are a solo man, or a group, Rhythm King can add the accompaniment you've been seeking. Play the rhythmic patterns individually or make up your own patterns by mixing the voices together"
Maestro G-1 (599$)
(From 1972 catalog about the G-2) "All the contemporary sounds in one easy to handle package. Plug in, push a tab and your guitar comes on like any or all of today's wildest sounds and some from tomorrow. Play a note, wear it awhile...then throw it out and bring it back"
Sireko by Echoplex (600$)
(From 1972 catalog) "Not just another echo device. Maestro Sireko is a compact electronic tape echo device that offers many of the features usually found on more expensive models. You are in control of your special echo effects at all times. Echo delay and echo repeat speed controls afford countless possibilities. From mild reverb to Les Paul multiple effects"