Output transformerless (OTL) is a type of vacuum tube audio power amplifier, which omits an output transformer for the purpose of greater linearity and...

amplifiers. Julius Futterman pioneered a type of amplifier known as "output transformerless" (OTL). These use paralleled valves to match with speaker impedances...

Vacuum tube push–pull amplifiers usually use an output transformer, although Output-transformerless (OTL) tube stages exist (such as the SEPP/SRPP and...

adapted to operate without output transformers, and present-day commercially produced circlotron models are of output transformerless (OTL) type. The Circlotron...

of softball played mostly in Southern California Over time limit Output transformerless, a vacuum tube amplifier topology Outside the Lines, an American...

in transformer circuits. Notable exceptions are various "OTL" (output-transformerless) tube amplifiers, pioneered by Julius Futterman in the 1950s, or...

switching stages to reduce line interference. A capacitive power supply (transformerless power supply) uses the reactance of a capacitor to reduce the mains...

high-frequency and then back to DC and then to the final AC output voltage suitable for the grid. Transformerless inverters, which are popular in Europe, are lighter...

cost-effective. A bridge-tied load (BTL), also known as bridged transformerless and bridged mono, is an output configuration for audio amplifiers, a form of impedance...

high-voltage amplifier with transformerless output. A general-purpose amplifier with typical low-impedance output is used. Its output is connected to the primary...

operate in class A. In a transformerless output stage, the devices are essentially in series with the power supply and output load (such as a loudspeaker)...

designed for series voltage regulator applications, now popular for output transformerless audio amplifiers; premium version of 6AS7 6082 – Ruggedized, indirectly...

related to Capacitive power supply. Transformerless Power Supplies: Resistive and Capacitive - Microchip Transformerless Power Supply Design - Designer Circuits...

of 110–117V. An extra dropper resistor was therefore not required. Transformerless designs had a metal chassis connected to one side of the power line...

known as duty cycle). In contrast, a linear power supply regulates the output voltage by continually dissipating power in the pass transistor. The switched-mode...

peak-to-peak output of a solid-state transformerless amplifier is limited by the power supply voltage. An amplifier may have an asymmetrical output swing and...

millions of All American Five AM radio receivers. Most of these used a transformerless power supply circuit. In American radio receivers with transformer...

microphones with balanced outputs but no output transformer, starting with the model TLM 170. Eventually this "fet 100" or "transformerless" series was expanded...

microwave ovens. Before the introduction of semiconductor electronics, transformerless vacuum tube receivers powered directly from AC power sometimes used...

in the output transformer); low damping factor (High Z out) output stages; the use of very large amounts of feedback in signal transformerless semiconductor...

load for the microphone being reduced below the impedance of either. [Transformerless] capacitor and active-dynamic mics won't have a problem at all [but]...

back to DC and then to the final AC output voltage. Historically, there have been concerns about having transformerless electrical systems feed into the...

the design was to eliminate the mains transformer. The lower cost of transformerless designs remained popular with manufacturers long after DC power distribution...

since 1973, as well as some models from even earlier, have featured transformerless output circuitry. Though a lesser-known brand in the Americas, Schoeps...

required by the tubes' plates and other electrodes. One approach used in transformerless line-operated radio and television receivers such as the All American...

powering often require much more current (e.g., 2–4 mA for Neumann transformerless microphones, 4–5 mA for the Schoeps CMC ("Colette") series and Josephson...

custom hand-wired 8-channel split-console desk with transformerless balanced inputs and outputs - was installed at Morgan Studios. Morgan Studios initially...

Canada. Unlike its competitors, Soundstream's analog circuitry was transformerless, permitting a frequency response to 0Hz (DC). This accounted for the...

and catenary systems were combined into a transformerless system, that utilized the same voltage from output of generator to catenary to locomotive pantograph...

Electrodynamic Loud-Speaker (Improved Version) 2,539,672 1951 Transformerless Audio Output System (Tube Amplifier) 2,548,235 1951 Means For Improving The...