Glossary Alternating Current AC Some common semiconductors are silicon and germanium Transistors are made out of semiconductor crystals Silicon Silicon is one of the most common elements
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To help protect the germanium output transistors in the Viscount and Buckingham from overheating Thomas Organ designed a heat sink for each output transistor that was twice as wide as those used in their amps powered with silicon output devices
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COMPARISON of Silicon and Germanium Germany Germanium is an important semiconductor material used in transistors and various other electronic devices The magnitude may vary but the direction is always fixed Alternating Current sinusoidal waveform Alternating Current is current in which the direction changes with time Related
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To cause the Base current to flow in a PNP transistor the Base needs to be more negative than the Emitter current must leave the base by approx 0 7 volts for a silicon device or 0 3 volts for a germanium device with the formulas used to calculate the Base resistor Base current or Collector current are the same as those used for an equivalent
Base voltage V be as a function of base current I b for a germanium transistor To illustrate the variation of AC base resistance with variation in base current I b = I e / H fe figure 2 is shown Observe how the slope of the curves and hence the value of R b decreases as the base current is increased
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The transistor is semiconductor device hence it is made up of Silicon Si or Germanium Ge Construction of Bipolar Junction Transistor BJT A transistor is consists of two PN junction which is formed by sandwiching either N type or P type semiconductor between a pair of opposite types of layers which forms three regions called emitter
The original versions of the Fuzz Face were equipped with PNP Germanium transistors There were at least three types used NKT275 AC128 and SFT363E These three transistors
· Why Silicon is preferred over Germanium for Semiconductor Devices As we all know both Silicon and Germanium are semiconductor devices moste of the transistor are made by using silicon compared to germanium A barrier voltage How Does an Air Conditioner Work SUBSCRIBE NOW Authors till date
Transistor Amplifiers Purpose transistors and so the behavior of logic devices depends upon the behavior of transistors In addition to the importance of transistors as components of op amps logic circuits and an enormous An ac signal of 1 volt amplitude on the input will therefore give an AC signal
delco 1950/1960s germanium power transistors The race for the conversion of auto radios from tubes to semiconductors was no more fiercely fought than with General Motors own Delco Radio Division
Overview Germanium Complementaryyy Transistors Power Output Driver Germanium Material Type
Keeley Fuzz Head Getting The Most From Your Fuzz Pedal External Fuzz Controls FUZZ This is the distortion control Set this for the amount • NPN Germanium transistor the heart of this pedal • Additional gain stage a Darlington Pair of high gain silicon transistors for tons
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What is the difference between a relay and transistor as a switch AC controlled magnetic latch relays have single coils that employ steering diodes to differentiate between operate and reset commands What is the difference between a relay and transistor as a switch
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Diodes and Transistors 1 Introduction So far in EE100 you have seen analog circuits You started with simple resistive circuits more rarely germanium Before the development of modern silicon power rectifier diodes cuprous oxide and later selenium was used its low
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PNP Germanium Transistor for Audio applications Potentioally great for vintage guitar pedals Type unknown metal can removed form a piece of audio equipment that was made in the USA in 1966 Will sell your first sample for $3 00 overpayment refund so that you can measure the specifications and if
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Germanium transistors have a slightly darker warmer and woolier sound They can also clean up with the guitar s volume knob much better than silicon transistors Silicon transistors have a little more gain sustain and brightness
Diac Diode for Alternating Current Like an SCR except that it works in both directions General Electric Robert N Hall laser Transistors SCR invented the alloy diffusion process Schenectady Featured videos on the history of semiconductors The GE Semiconductor Business
Germanium Transistorpärchen GC 301 AC 153 mit Kühlkörper für hochwertige NF Treiber und Endstufen Aufbau PNP Typ GC 301 1 Paar 1 51 Mesa Planar Transistor im TO 3 Gehäuse 250 V 10 A 50 Watt 7 MHz PNP
bias of 3 V and an AC amplitude of 1 V and that β=100 Determine the collector supply voltage necessary to keep the average power dissipated in the transistor to below 0 5
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