If changing locations/voltages, the power transformer must be replaced with the dedicated one for the voltage at which it will operate.Designed by Pulse Techniques’ Eugene Shenk and Ollie Summerland, each EQP-1A equalizer was often built to order, inevitably making the boutique company’s products a rare commodity in the secondhand gear market.
PULTEC EQ SERIES
120VAC units may NOT be rewired to put the primaries of the power transformer in series for 220-240V operation or a large radiated field of hum will develop.
Power transformer must be replaced in order to change mains operating voltage.
PULTEC EQ SERIAL NUMBER
Kick drum? Bring on the Pultecs and all the iron you can muster! You'll soon discover the power and magic of having those individual Low Frequency BOOST and CUT controls in that LF shelf circuit. Like our 40dB Mic Preamps, the Manley Pultecs offer both transformer coupled balanced and direct capacitor coupled unbalanced outputs for easy interface and sonic variety. The MANLEY PULTEC EQP-1A, available in both single and 2-channel versions, uses 1 x 12AX7WA and 1 x 6414 (or 5965) in our ALL-TUBE single-ended line amplifier for the gain make-up and extra-beefy sound gain is factory set for unity but additional gain is available by a rear mounted feedback adjustment trimpot. So, if you want a project with crackling carbon pots, dirty open frame wafer switches, 5% and 10% tolerance noisy carbon resistors, exposed tubes sticking out the back of the 3U chassis, etc., go pay top dollar for an antique Pultec! The components we use today just weren't available in the 1960's. Our line amp is known to be killer-sounding. Our Manley Enhanced Pultec has a vastly superior B+ power supply, with regulated and balanced heater supply. People often ask us if our Pultec EQ's sound like the old ones to which we reply, "Yes! But better!" The originals had three transformers in the signal path whereas ours can be used completely transformerless. The rear mounted input switch selects 0 degrees or 180 degrees PHASE INVERT for the balanced gold pin XLR input or the transformerless unbalanced bridging input (1/4" jack) may be selected in that switch's middle position. And if you notice, we've added a couple extra frequencies too. Our single rack unit monoblocks occupy one-third of the space of the 'antique Pultecs', an important consideration for allocation of outboard rack space. All BOOST and CUT controls are continuously variable conductive plastic potentiometers for absolutely silent operation and long life. These Manley Pultec units employ our own simple and clean all-tube make-up gain block to reamplify the signal after the passive EQ circuit.ĮQ may be set to 'flat' positions or BYPASSED entirely. We have been building these Manley Pultec EQs since 1990 after we bothered to hunt down Eugene Shenk in New Jersey to ask for his permission and blessings to produce our own version of his classic piece. The MANLEY ENHANCED PULTEC EQP-1A is our own interpretation of the historic Pultec Equalizer as originally produced by Pulse Techniques, Inc. Manley Stereo Pultec Equalizer EQP-1A Type
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