germanium pnp electronics

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germanium pnp electronics

Does it matter if I replace germanium transistors with

The main difference between germanium and silicon transistors in switching circuits, be they either PNP or NPN transistors is that VBE for small In this work, we apply a recently reported modeling methodology, based on the Early e ect, for characterizing new old stock NPN and PNP small signal germanium junction Characterizing Germanium Junction Transistors

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Biodegradable germanium electronics for integrated biosensing of

This paper introduces germanium nanomembrane-based bioresorbable electronic sensors, where the chemical dissolution of all utilized materials in biofluidic The transistor I urgently need to find is a suitable equivalent to a Motorola MPS H54 PNP transistor. Tim O. Aug 27, 2020 at 15:24. Tim, the only remarkable audio Finding replacement PNP transistors Electrical

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Germanium PNPN switches IEEE Journals & Magazine IEEE Xplore

Germanium PNPN switches Abstract: A germanium PNPN switching device is analyzed on the basis of the field dependence of alpha of the NPLV section of the device. The base NTE Electronics 2N404A Transistor: PNP; bipolar; germanium; 35V; 150mA; 150mW; TO5 This product is available in Transfer Multisort Elektronik. Check out our wide range 2N404A NTE Electronics Transistor: PNP bipolar; germanium;

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What Germanium PNP transistor do I use? Electronics Forums

You don't. Germanium transistors were pretty much obsoleted forty years ago, by. silicon transistors. There is a far better range of silicon transistors, and generally oc 74, germanium pnp transistor philips not rohs conform = wn5430 case: to-1Semiconductor: OC74 (OC 74) GERMANIUM PNP

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audio Finding replacement PNP transistors Electrical

The transistor I urgently need to find is a suitable equivalent to a Motorola MPS H54 PNP transistor. Tim, the only remarkable specs for MPS H54 is its high voltage (80V), and its low noise figure at low impedances. Don't forget the case style this one is standard TO-92 through-hole mounting.OC 81GERMANIUM PNP TRANSISTOR NOT ROHS = OC81D = 2SB54. prices exclude shipping costs. minimum order value (total order): 50.00 €. prices are plus 23% VAT (only for irish customers and Semiconductor: OC81 (OC 81) GERMANIUM PNP

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transistor 2SA234 similar type web-bcs

the AF127 is a PNP germanium transistor preferred for IF amplifier stages in FM/AM receivers as well as input and mixer stages in RF (AM) stages : Picture: -Source: Jaeger electronic catalog.. Jaeger electronic catalog 1999. similar type: 2SA342: OEM: Matsushita D Matsushita Denshi Kogyo Co., Japan. Package:-Hi, I was given a Dynatron stereo amp SRX26 with one channel not working. Likely failed components are the output transistors AL103 4J according to my research. I tried replacing those on the bad channel with 2 ‘new’ ones but no improvement. I then removed and tested all the transistors with the...Help with Germanium PNP transistors needed. Electronics

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Parts Transistors Germanium Page 1 Small Bear Electronics

Transistor NPN Germanium 2N1304 J714. $8.99. Semiconductor Technology Inc.File Size: 41Kbytes. Page: 1 Pages. Description: GERMANIUM PNP ALLOYED JUNCTION AUDIO FREQUENCY POWER OUTPUT. Manufacturer: List of Unclassifed Manufacturers. Electronic Components Datasheet NTE Electronics: NTE121: 20Kb / 2P: Germanium PNP Transistor Audio Frequency Power Amplifier NTE104: 20Kb / 2P: 2SB337 Datasheet(PDF) List of Unclassifed Manufacturers

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AF126 Datasheet(PDF) Siemens Semiconductor Group

germanium pnp transistor siemens semiconductor g af109r: 140kb / 5p: pnp germanium rf transistor af239s: 84kb / 4p: pnp germanium rf transistor af240: 110kb / 5p: pnp germanium rf transistor af379: 41kb / 2p: pnp germanium rf transistor af289: 38kb / 2p: pnp germanium uhf transistor af106: 182kb / 6p: pnp germanium rf transistor af139: The 1961 Lafayette radio Electronics catalog shows a range of prices for this Sylvania line of transistors, with the 2N356 at the lowest price ($3.59) from 1959 that provided detailed specifications on over 30 different types of NPN and PNP germanium alloy switching transistors available from the company at that time.Transistor Museum Photogallery Sylvania Historic Germanium

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AC128 PNP Germanium Transistor Spice Model (Rare!)

For example, here is the 2N344: .model 2N344 PNP (Is=1e-10 bf=11 Vaf=15 Cje=5p Cjc=2.5p Tf=3n. + Eg=.67 Rb=100 Re=10) It is not perfect, but it is a good starting place that might be tweaked to accomodate other types. Anyway, it is not grossly incorrect like the AC128 mentionned earlier.There were very few TO220 parts in existence when the KLH21 desk-top. FM radio was made, but germanium transistors were common. Power stages. often used TO-1 or X-04 germaniums for a couple of watts output. Please copy the part number of the suspect device or indicate the. part's location / ID in the schematic.where to find germanium TO-220 PNP NPN Electronics Forums

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Der PNP-Transistoren Basic Electronics Tutorials

Damit der Basisstrom in einem PNP-Transistor fließen kann, muss die Basis negativer sein als der Emitter (der Strom muss die Basis verlassen), und zwar um ca. 0,7 volt für ein Silizium-Bauelement oder um 0,3 volt für ein GERMANIUM PNP MESA TRANSISTORS 2N1926: 1Mb / 2P: GERMANIUM PNP MESA TRANSISTORS America Semiconductor, 2N2000: 1Mb / 2P: GERMANIUM PNP MESA TRANSISTORS 2N2043: AC151 Datasheet(PDF) Siemens Semiconductor Group

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NPN Transistors and PNP Transistors Utmel

I. Differences. The transistor is consisted of a three-part semiconductor forming two PN junctions, and its composition forms are PNP type and NPN type. Most of the germanium transistors are of PNP type, and most of the silicon transistors are of NPN type. Their structural principles are the same. The triode has three regions and three Characterizing Germanium Junction Transistors Luciano da F. Costa S~ao Carlos Institute of Physics, IFSC-USP, S~ao Carlos, SP, Brazil (Dated: February 7, 2018) Transistors have provided the basis of modern electronics. Being relatively intricate devices, and often exhibiting intense parameter variation, this type of electronic devices hasCharacterizing Germanium Junction Transistors arXiv

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AF239 Datasheet(PDF) Siemens Semiconductor Group

AF239 Product details. PNP Germanium RF Transistor. for UHF input states up to 900 MHz. AF 239 is a germanium PNP mesa transistor in TO 72 case (18 A 4 DIN 41876). The leads are electrically insulated from the case.Fuzz face schematic output simple germanium pnp two increase guitar silicon volume npn basic Positive power for the pnp fuzzface[build help] npn fuzz face : diypedals Effects > fuzz face revisited : diy fever building my own guitarsFuzzface fuzz face pedal guitar schematics schematic silicon circuit layout ground npn arbiter bc108 Npn Silicon Fuzz Face Schematic

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2N527 Datasheet(PDF) New Jersey Semi-Conductor Products, Inc.

File Size: 158Kbytes. Page: 2 Pages. Description: PNP germanium transistor for switching and ampli-fier applications in the audio-frequency range. Manufacturer: New Jersey Semi-Conductor Products, Inc.. Electronic NTE Electronics: NTE158: 19Kb / 2P: Germanium PNP Transistor Audio Power Amplifier NTE105: 22Kb / 2P: Germanium 5.2.1 Bipolar technology. A typical bipolar process contains npn and pnp transistors which can be orientated vertically or laterally. The most commonly used devices are the vertical npn and the lateral pnp transistor. Bipolar circuitry has been widely used for both digital and analogue electronics. Although bipolar technology has lost itsPnp Transistor an overview ScienceDirect Topics

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AF139 Datasheet(PDF) Siemens Semiconductor Group

PNP Germanium RF Transistor. Similar Part No. AF139: Manufacturer: Part # Datasheet: Description: 3M Electronics: AF13: 31Kb / 8P: 3M Scotch-WeldTM Structural Adhesive Films AF130-2: 20Kb / 4P: Scotch-WeldTM StructuralAdhesive Film AF131-2: 20Kb / 4P: 3M Scotch-WeldTM Bonding Film Anachip Corp:

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