germanium transistor ac

  • Fuzz Face Germanium Transistor Shootout - YouTube

    Apr 17, 2013· A germanium transistor sound test of the transistors supplied by Pedalhacker: AC125k | AC128 | CV5416 | ASX12D | GT2308 | GT308B Link to Pedalhackers Ebay St...

  • ac128 germanium pnp transistor | All About Circuits

    Mar 21, 2015· The very old AC128 germanium transistor had a different base-emitter voltage requirement compared to a silicon transistor and had a poor high frequency response so it will sound different to a silicon transistor.

  • UK Vintage Radio Repair and Restoration - Transistor ...

    A few germanium diodes (such as the OA47) are still available, but as with germanium transistors, their days must be numbered. Modern small signal Schottky diodes such as the Philips BAT83 and BAT85 have a similar forward drop to germanium diodes at low currents, and could probably be used as direct replacements in many sets.

  • Bones Hi - Fi: Germanium Transistor Based Audio Power ...

    May 10, 2013· The inherently widely varying parameters in germanium transistors means resistor values selected for AC / DC biasing, Q-point operation, feedback and stability that works for one circuit may not necessarily work in another similarly designed circuit even though both use germanium transistors from the same batch.

  • Germanium vs. Silicon Transistors - Robert Keeley

    Sep 11, 2013· Germanium is a chemical element with symbol Ge and atomic number 32, that’s used as a semiconductor in transistors and diodes, popping up in a few classic effects like the early period Arbiter Fuzz Face, the storied Dallas Rangemaster and the Maestro Fuzz-Tone. “Subjectively the sound of Germanium offers a smoother, more-ear pleasing ...

  • 3W Audio Amplifier Using AC187-AC188 Pair - Engineering ...

    Circuit Diagram of 3W Audio Amplifier Using AC187-AC188 Pair. A discrete 3W Audio power amplifier circuit is shown in figure 1 employs a complementary output stage featuring the AC 187-AC188 (T 3 and T 4) germanium output transistor pairs.This amplifier can deliver a maximum of 3W into an 8Ω loads.

  • Transistor - Wikipedia

    The first high-frequency transistor was the surface-barrier germanium transistor developed by Philco in 1953, capable of operating up to 60 MHz. These were made by etching depressions into an N-type germanium base from both sides with jets of Indium(III) sulfate …

  • The Technology of the Fuzz Face - geofex.com

    Two transistors, four resistors, three capacitors, and two controls make all that tone. The first transistor is set up with the simplest of arrangements - input through a DC blocking capacitor directly to the base, emitter grounded, and a single collector resistor; the driven load is a second transistor …

  • Radio Circuits | Practical Analog Semiconductor Circuits ...

    See Volume 6 Experiments, AC Circuits, Sensitive audio detector for details. The circuit in Figure below adds an audio amplifier to the crystal detector for greater headphone volume. The original circuit used a germanium diode and transistor. A schottky diode may be substituted for the germanium diode. A silicon transistor may be used if the ...

  • diyAudio - AC128 PNP Germanium Transistor Spice Model (Rare!)

    Dec 27, 2009· The Fuzz Box design I have with SPICE has high gain transistors and I replaced the Feedback Loop Resistor with a Potentiometer to get much higher gain so I could use low hfe xistors. I downloaded the bjt.xls and will see what I can do with it...just have to find parameters for the Ge's...should take about...12 Billion Light Years on the Internet.

  • AC 128, Tube AC128; Röhre AC 128 ID33948, Transistor

    Tube AC 128 or Röhre AC128 ID33948, Transistor, Wires and Power/Output shown. Radio tubes are valves.

  • Germanium - Wikipedia

    The development of the germanium transistor in 1948 opened the door to countless applications of solid state electronics. From 1950 through the early 1970s, this area provided an increasing market for germanium, but then high-purity silicon began replacing germanium in transistors…

  • ElectroSmash - Fuzz Face Analysis

    The Fuzz Face is a distortion guitar pedal designed in London by Arbitrer Electronics Ltd in the autumn of 1966. This analysis covers the first Arbitrer Fuzz Face model equipped with PNP germanium transistors from the first releases.

  • AC128 TRANSISTOR DATASHEET PDF - searchforhappiness.eu

    AC Datasheet pdf – Germanium Small Signal Transistors – GPD Optoelectronic Devices. At the current specified in the datasheets? Although I do not play guitar, there is a forum called “diyAudio”, maybe they have some Germanium Transistor Spice Models for this particular type of fuzz simulation.

  • What is a Germanium Transistor? (with picture)

    Sep 23, 2019· A germanium transistor is a variation on a standard transistor built on the element silicon, where, instead, a silicon-silicon-germanium alloy is commonly used to increase transmission speed of electrical signals. Individual electrical component speed adds up as an aggregate, and, therefore, a germanium transistor array can significantly increase the processing speed of a circuit.

  • Articles › Transistors in Vintage Radios

    Anyway, the problem with these transistors is NOT the germanium itself - rather, it's the package the transistors are mounted in. The TO7 encapsulation has a 4th lead that is connected to the metal can, and this is usually connected to ground so that the transistor inside is screened.

  • Semiconductor: AC176 (AC 176) - GERMANIUM TRANSISTOR...

    Search Terms: stock, ordering, data, equivalence, equivalent, find, on line, order, part, repair, replacement part, replacement parts, shopping, spares, substitute ...

  • ac germanium | eBay

    Find great deals on eBay for ac germanium. Shop with confidence. Skip to main content. eBay Logo: ... 2 X AC-184 GERMANIUM TRANSISTOR - NOS - GEM-3. Brand New. $14.95. Buy It Now +$5.95 shipping. Watch. SIEMENS AC151R GERMANIUM transistor TO-1 24V 200MA new vintage parts Quantity-1. Brand New.

  • Germanium transistors : TO1 case models - Guitar Poppa

    Jun 16, 2015· The TO1 standard was the first all-metal case used for germanium transistors when the black glass models were abandoned around 1964. This concerns European series like ACs, industrial series ACYs, ASYs, ASZs, the british NKTs and the japanese 2SAs…

  • AC128 Datasheet(PDF) - List of Unclassifed Manufacturers

    GERMANIUM SMALL SIGNAL TRANSISTORS, AC128 datasheet, AC128 circuit, AC128 data sheet : ETC1, alldatasheet, datasheet, Datasheet search site for Electronic Components ...

  • AC127 Datasheet, Equivalent, Cross Reference Search ...

    AC127 Datasheet (PDF) 1.1. ac127.pdf Size:181K _siemens. AC 127 npn-Transistor legierter npn-Germanium- Transistor Der Transistor AC 127 ist fur die Verwendung als NF-Verstarker geeignet.

  • It's Raining Germanium! - tonefiend.com

    Aug 13, 2013· When and how did it become so easy to procure great-sounding and inexpensive germanium transistors for DIY fuzz pedals? « Phasers That Stun The WRONG Way to Use a Talk Box » It’s Raining Germanium! I just bought 500 germanium transistors. ... for example. The AC-187 is a loud NPN transistor whose hFE values check in between 300 and 500, a ...

  • Semiconductor: AC178K (AC 178K) - GERMANIUM TRANSISTOR

    Please note: prices exclude shipping costs. minimum order value (total order): 20.00 €. prices are plus 23% VAT (only for irish customers and private customers within the EU).

  • Germanium Transistors - Page 1 - Small Bear Electronics

    PNP Hot Germanium For The Big Muff. $2.75. Out of stock

  • How to Test Germanium Transistors - Fuzz Face AC128 ...

    Oct 01, 2012· How to Test Germanium Transistors - We use these AC128 transistors in our Fuzz Face Clone Pedal Kit. You can buy our transistors in our store, or you can buy your own.

  • Germanium Treble Booster | Telecaster Guitar Forum

    Oct 10, 2015· Germanium transistors were the first type of transistors generally available, starting in the early 1960s. They are not very stable or easy to manufacture consistently. Since silicon transistors took over from germanium about 40 years ago, almost nobody makes germaniums anymore, and the few that are made just don't do the trick in a fuzzface ...

  • GE Transistors for sale | eBay

    Get the best deal for GE Transistors from the largest online selection at eBay.com. Browse your favorite brands affordable prices free shipping on many items.

  • AC128 TRANSISTOR PDF - layouts-the.me

    Tube AC or Röhre AC ID, Transistor, Wires and Power/Output shown. Radio tubes are valves. Two Germanium transistors (type AC) are selected by us for the best Fuzz Face sound. The highgain set will get you high distortion fuzz sounds with lots of . AC Ge-Transistor …

  • Semiconductor: AC151VI (AC 151 VI) - PNP GERMANIUM ...

    ac 151 vi, pnp germanium transistor dsi not roh

  • How to Check a Transistor With a Digital MultiMeter ...

    Germanium diodes have forward voltage drops between 0.2 and 0.3 volts. The 2N3904 transistor is a silicon transistor, so you can expect a forward voltage drop in the range of 0.5 to 0.7 volts. If the transistor you are testing is in a circuit, you will need to remove the transistor from the circuit board.