Early Power Transistor Evolution, Part 1, Germanium
23/08/2012· The 2N1532 is also a germanium PNP power transistor, similar to a number of other power transistors of the time. It is packaged in the widely recognizable TO-3 diamond-shaped hermetic package.
Bones Hi - Fi: Germanium Transistor Based Audio Power,
10/05/2013· most of this parameters probably explains why a germanium transistor based audio power amplifier based on the ad 149 pnp output transistor that is properly heat sinked to produce a healthy 10 watts in single-ended configuration can easily perform with a sound quality much closer to that of a zero-feedback single ended triode (set) vacuum tube
Amazon: germanium transistor
21 行· The development of the germanium transistor in 1948 opened the door to countless
Redesign Germanium Transistor Circuits, Part 1
Germanium transistorprojects intrigued experimenters from the early days in the 1950s until the early 1970s. In the Seventies, the higher-grade silicon devices began to take over the Hobbyists adapted, by attempting germanium-to-silicon conversions. Several difficulties occurred. While the solution didn't always work, it usually did.
Germanium Transistors! Help! | diyAudio
23/11/2021· Germanium Complementary Transistors Medium Power Amplifier " 2. " Common-Emitter Cutoff Frequency, fαe, at VCB = 2V and IE = 10mA : 10KHz " CAN YOU, PLEASE, EXPLAIN POINT 2. HOW CAN AN AUDIO TRANSISTOR HAVE A CUTOFF FREQUENCY OF 10KHz IN ANY CONFIGURATION AT ANY CIRCUMSTANCES? Also : I am extremely
Researchers at TU Wien has Developed Adaptive Transistor,
25/12/2021· Power Supply: Corsair RM750: Mouse: Logitech G502 Lightspeed: Keyboard: Wooting Two: Software: Windows 10 Pro: Benchmark Scores: https://valid.x86.fr/33u9si : 1 minute ago #1 Transistors as we know them appear to be in for a big change, at least if the latest development by researchers at TU Wien has anything to say about it. The group of
Researchers at TU Wien have Developed Adaptive Transistor,
25/12/2021· Above the germanium segment, we place a gate electrode like the ones found in conventional transistors. What is decisive is that our transistor features a further control electrode, which is placed on the interfaces between germanium and metal. It can dynamically program the function of the transistor".
Germanium Power Amplifier
Germanium Power Amplifier – hybrid silicon BJT, MOSFET and germanium BJT . Last Modified: 20 Apr 2013. Compiled from a topic on the Audio Talk forum . M. y germaniums have arrived! The complete collection: The CV7084 is the military version of Mullard OC35 ~ only £5.00 each from Langrex: Even get a mica insulator kit in the box. Background Info . This project took me two
Amazon: germanium transistor
NTE Electronics NTE158 Germanium PNP Transistor for Audio Power Amplifier, to-1 Case, 1A Collector Current, 32V Collector-Emitter Voltage. 3.9 out of 5 stars 5. $10.29 $ 10. 29. Get it as soon as Wed, Jan 5. FREE Shipping on orders over $25 shipped by Amazon. Only 7 left in stock (more on the way). NTE Electronics NTE103A NPN Germanium Complementary Transistor
Germanium power transistor 2n1522 | diyAudio
26/10/2014· A 50 amp germanium transistor was not common, ever. It would have been expensive, and far to big for a car radio which ran at about 1 amp. The low Ft makes it unsuitable for audio use. It could have been used in a power supply, but most commercial power supplies would have used multiple smaller devices for cost reasons.
Germanium Transistors - ramblefx
The correct type of Germanium transistor used in many fuzz pedals are special in that they require opposite polarity power. You cannot power two pedals with different polarities from the same power supply. To avoid that, we have included a built-in voltage inverter in Twin Bender which solves this problem and allows you to power it by sharing a power supply with other
Germanium Transistors in Power Supply | Page 2 | QRZ Forums
10/01/2007· When the power switch is closed, the emitters are hot (full input voltage). There is an oscillator circuit that alternately switches the two transistors on/off, off/on. The collectors are connected to either end of the transformer primary winding. This gives the switching action so that we get voltage on the secondaries/output. When I put 6 volts on the input, I measure around
Redesign Germanium Transistor Circuits, Part 1
Germanium transistor projects intrigued experimenters from the early days in the 1950s until the early 1970s. In the Seventies, the higher-grade silicon devices began to take over the hobby market. Hobbyists adapted, by attempting germanium-to-silicon conversions. Often, the germanium circuits didn't cooperate. Several difficulties occurred. Fortunately, each one had
germanium power transistor中文_germanium power transistor
germanium power transistor的中文意思：锗功率管…,查阅germanium power transistor的详细中文翻译、发音、用法和例句等。
Germanium Transistors! Help! | diyAudio
23/11/2021· Germanium Complementary Transistors Medium Power Amplifier " 2. " Common-Emitter Cutoff Frequency, fαe, at VCB = 2V and IE = 10mA : 10KHz " CAN YOU, PLEASE, EXPLAIN POINT 2. HOW CAN AN AUDIO TRANSISTOR HAVE A CUTOFF FREQUENCY OF 10KHz IN ANY CONFIGURATION AT ANY CIRCUMSTANCES? Also : I am extremely
Researchers at TU Wien has Developed Adaptive Transistor,
25/12/2021· Power Supply: Corsair RM750: Mouse: Logitech G502 Lightspeed: Keyboard: Wooting Two: Software: Windows 10 Pro: Benchmark Scores: https://valid.x86.fr/33u9si : 1 minute ago #1 Transistors as we know them appear to be in for a big change, at least if the latest development by researchers at TU Wien has anything to say about it. The group of
How to test germanium transistors? - Antique Radio Forums
Regardless of how you test germanium transistors, if they fail and have a metal case (all that I have encountered are metal cased) you can possibly revive them. You have probably heard about tin whiskers whenever germanium transistors are mentioned. I have found quite a few failed transistors can be revived if one or more of the leads are shorted to the case (except for
Replacing Germanium Transistors - Antique Radio Forums
03/04/2018· Germanium transistors are extremely unstable things, It would be nice if you could just buy some of the right "type" and replace them. IMHO that ship has sailed long ago. The trouble is, originally they were probably made, and THEN selected for numbering afterward depending on their characteristics. Due to instability, they probably do not meet the same
GERMANIUM POWER TRANSISTORS - njsemi
germanium power transistors typ, numbir cat typ, kw k k™ f v p™ c •vu p current cain » cn 0 /c saturation voltages k»,. , ''..,.•c/w»,.= /r <9 . 4 amp germanium pnp 2n234a 2n235b 2n255a 2n25a 2n257 2n553 2n663 2ni139 to-3 to-3 to-3 to-3 to-3 to-3 to-3 to-3 25 25 15 30 40 80 50 80 25 6 0 15.0 15,0 15.0 6.0 40.0 20.0 20.0 25 35 15 25 25 34 25 25 20 40 25 30 40 80 75 75 2.0
What is a Germanium Transistor? (with picture)
Germanium alloys offer enhanced transmission rates in high-speed circuitry over silicon, but they are not without their drawbacks. Most properties of a germanium transistor fall below those of a standard silicon transistor, including the maximum power distribution they offer, at around 6 watts versus over 50 watts for silicon, and lower levels of current gain and operating frequencies.
Germanium Transistors - ramblefx
The correct type of Germanium transistor used in many fuzz pedals are special in that they require opposite polarity power. You cannot power two pedals with different polarities from the same power supply. To avoid that, we have included a built-in voltage inverter in Twin Bender which solves this problem and allows you to power it by sharing a power supply with other
Germanium power transistor 2n1522 | diyAudio
26/10/2014· A 50 amp germanium transistor was not common, ever. It would have been expensive, and far to big for a car radio which ran at about 1 amp. The low Ft makes it unsuitable for audio use. It could have been used in a power supply, but most commercial power supplies would have used multiple smaller devices for cost reasons.
Innovative Germanium Transistor That Can Change Future Of,
22/12/2021· Innovative Germanium Transistor That Can Change Future Of Electronics. December 22, 2021. 60. The commonly implemented electronic component has now been enhanced to serve a range of tasks involving logic and high-end computing. In addition to the usual control gate (red) there is also a program gate (blue). (credit: TU Wien)
Germanium Transistors in Power Supply | Page 2 | QRZ Forums
10/01/2007· When the power switch is closed, the emitters are hot (full input voltage). There is an oscillator circuit that alternately switches the two transistors on/off, off/on. The collectors are connected to either end of the transformer primary winding. This gives the switching action so that we get voltage on the secondaries/output. When I put 6 volts on the input, I measure around
Germanium Transistors! Help! | diyAudio
23/11/2021· Germanium Complementary Transistors Medium Power Amplifier " 2. " Common-Emitter Cutoff Frequency, fαe, at VCB = 2V and IE = 10mA : 10KHz " CAN YOU, PLEASE, EXPLAIN POINT 2. HOW CAN AN AUDIO TRANSISTOR HAVE A CUTOFF FREQUENCY OF 10KHz IN ANY CONFIGURATION AT ANY CIRCUMSTANCES? Also : I am extremely
Germanium Transistors - Musikding
Germanium Transistors. Germanium Transistoren NOS (= New Old Stock), stock from the 70s und 80s. Most Germanium Types are also offered selected by gain factor and low leakage! AC116 - PNP. AC122 - PNP.
Germanium vs. Silicon Transistors - Robert Keeley
11/09/2013· Germanium vs. Silicon Transistors. September 11, 2013; Overdrive/Distortion, Technical; One facet of the design process here at Keeley Electronics comes down to selecting not just the highest quality components for use in our pedals, but the right component for the sounds we’re trying to achieve.
Germanium Transistor Amplifier Circuit – Electronics,
22/04/2016· Electronics Projects, Germanium Transistor Amplifier Circuit "audio amplifier circuits, transistor amplifier, " Date 2016/04/22. Once AD161-AD162 I had an experiment with pair. I still use almost every day. At first I didn’t like the sound, but I like listening to. The frequency of particular speech sounds very clear and is understandable.
