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FACTOIDS & TRIVIA

Ampeg entered the outboard reverb unit market in 1961 with the Echo Satellite and in 1963 with the Echo Jet. Unlike reverb units from Fender, Premier, Danelectro, and Alamo, the Echo Jet followed the approach of Gibson and Guild; namely, build an outboard reverb unit that could also be used as a stand alone amp. As its name implies, the Echo Jet is similar in size and sound to Ampeg’s Jet amplifiers. However, the EJ-12 lacks the Jet’s tremolo. The Echo Jet’s strong suit is its ability to stretch the sonic potential of a non-reverb amp. The EJ-12 accomplishes this not only by adding lush speaker driven-type reverb to the sonic mix, but by physically separating the reverb speaker from the dry signal amp’s speaker. This signal separation of up to 8 feet combined with the slight delay of speaker driven reverb yields a quasi-stereo effect. The amp shown here was made during the last year of production and utilizes the second version of the Echo Jet circuit (EJ-12-A). A third version of the circuit (EJ-12-D) was made for a very short period in late 1965.
 

AMPEG ECHOJET EJ-12-A (1965)




Power Amp:  Tube; 2 x 7591A, 18 watts RMS @ 8 ohms

Preamp:  Tube; 1 x 6D10

Rectifier:  Tube; 1 x 5Y3GT

Speakers:  1 x 12" CTS (alnico)

Channels:  1; 2 inputs

Effects:  Reverb

Controls:  Tone, volume

Dimensions:  14 1/2 H x 18 3/4 W x 10 1/2 D inches

Weight:  25 lb.






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