PULLTUBE MAX DRIVER
PULLTUBE MAX SERIES

Possibly the first commercial product using a push–pull amplifier was the RCA Balanced amplifier released in 1924 for use with their Radiola III regenerative broadcast receiver.

The technique was well-known at that time and the principle had been claimed in an 1895 patent predating electronic amplifiers.

Colpitts' US patent 1137384 granted in 1915, although the patent does not specifically claim the push–pull connection. A pair of audion tubes connected in push–pull is described in Edwin H. Push–pull circuits are widely used in many amplifier output stages. The two pairs of push-pull tubes are visible in front of the output transformers. Crossover distortion can be created near the zero point of each cycle as one device is cut off and the other device enters its active region.Ī vacuum tube amplifier often used a center-tapped output transformer to combine the outputs of tubes connected in push–pull.Ī Magnavox stereo tube push–pull amplifier, circa 1960, utilizes two 6BQ5 output tubes per channel. If the two parts of the amplifier do not have identical characteristics, distortion can be introduced as the two halves of the input waveform are amplified unequally. However, the push–pull amplifier requires a phase-splitting component that adds complexity and cost to the system use of center-tapped transformers for input and output is a common technique but adds weight and restricts performance. DC current is cancelled in the output, allowing a smaller output transformer to be used than in a single-ended amplifier. Symmetrical construction of the two sides of the amplifier means that even-order harmonics are cancelled, which can reduce distortion. The output power that can be achieved is higher than the continuous dissipation rating of either transistor or tube used alone and increases the power available for a given supply voltage. Push–pull outputs are present in TTL and CMOS digital logic circuits and in some types of amplifiers, and are usually realized by a complementary pair of transistors, one dissipating or sinking current from the load to ground or a negative power supply, and the other supplying or sourcing current to the load from a positive power supply.Ī push–pull amplifier is more efficient than a single-ended 'class-A' amplifier. This kind of amplifier can enhance both the load capacity and switching speed.

PULLTUBE MAX DRIVER

JSTOR ( November 2017) ( Learn how and when to remove this template message)Ī Class B push–pull output driver using a pair of complementary PNP and NPN bipolar junction transistors configured as emitter followersĪ push–pull amplifier is a type of electronic circuit that uses a pair of active devices that alternately supply current to, or absorb current from, a connected load.

Unsourced material may be challenged and removed. Please help improve this article by adding citations to reliable sources. M-6 29 ga.This article needs additional citations for verification. Polyester Film Electrical Insulating Tape This unit comes with steel end bells for mounting with the use of four screws. color coded lead wire around 15 inches (38cm) long. The addition of glass fibers allows a higher heat deflection temperature and it brings the material to a class HB UL temperature classification. Injection molded Nylon 6/6 with the addition of 30%-35% glass fibers. Each unit is hand stacked to assure at least 92% stack. All windings use heavy insulated wire to provide excellent manufacturing yield, lower customer cost and superior life.ĮDCOR uses the finest M6 line grain oriented steel cores. The output impedance is designed for speakers.Īll units are wound with the finest virgin copper magnet wire. The input is designed for a 10K Ohms impedance source.

PULLTUBE MAX SERIES

The CXPP series was designed as a high quality output transformers push-pull tube amplifiers.

Pulltube max