Listen to the Buzz Box! Sometimes found as a replacement in some vintage Fuzz Faces. I apologize to the visitors who will be frustrated by this lack of material ! The earliest fuzz pedals used germanium transistors, which is why there is a strong a sense of nostalgia for these with old-school purists. The Brand New Fuzz Faces…Arbiter Reissues. It’s been noted many occasions over when they get too hot…they’ll cease working. Therefore, they gained a reputation that made this family of components enter the guitar effects culture. Their fuzz box, the Electro-Harmonix Germanium 4 Big Muff Pi, is somewhat of a legend in its own right. Gain : 80 to 250 (rarely more than 150). 2N508, 2N527… Commonly cited antique American models. Someone in Aron’s Stompbox Forum stated that putting a 100pF capacitor over the Collector-Base junction from the transistors inside a Plastic Fuzz Face clone is needed control the gain and oscillation, so if you choose to build this version, remember that. They aren’t the same as the initial Germanium versions, usually having a more harsh and aggressive clipping instead of the soft clipping characteristics of Germanium. The combined forward voltage drops of D2 to D4 give the right voltage to simulate a "hot" penlight battery, and … AC128 by Tungsram… Maximum collector-emitter voltage: 12 to 20 V. Would love it if Basic Audio, Monsterpiece, Skreddy or SolidGoldFX or one of those Fuzz specialists could do something similar - i.e. I recall that apart from certain mythical or magical components, it is the technological family of transistors that is significant, rather than the particular model …. Fuzz Faces naturally tend to bias with only about half a volt on the collector of the first transistor, so there is a lot of room upwards. The fuzz circuit uses four vintage Germanium transistors, the switches allow you to select between two of the most popular types used in fuzz pedals. The number of 250 pedals circulated for years, but based on the number of Germanium pedals seen over the years there were probably many more, possibly even a few thousand. This transformation will raise the bass reponse from the pedal. This is something everyone can appreciate. BC183 The BC183 transistors are a little warmer than the BC108 and still have plenty of fuzz. The NKT275’s offer a brighter more aggressive fuzz tone. The AC128’s give a smooth softer fuzz with slightly lower gain. It’s impossible to attract a conclusion regarding which version is “better” compared to other, because many people such as the Plastic versions, and a few people don’t. Germanium diodes (like 1N34A) are hard to find in usual large distributors such as Digikey, Mouser, Newark, Farnell or RS, they are mostly found in specialised audio and guitar pedal boutiques since their use is more and more reduced to audio distortion in fuzz pedals. The problem is similar with any of the other NPN silicon devices that are commonly substituted for it. From left to right : AC128 by Philips / Mullard ; AC128 by Tungsram ; GC301 (GDR) ; GT402b (USSR) ; SFT363 (Italia). Eliminate any need for special considerations when powering your Fuzz Face with the other pedals on your pedal board. The 500KA original value continues to be substituted for a 100KA, which enables more highs to obtain through. WHY: A tool to help players identify the circuits most relevant to their musical needs. (I have not done wide research on this subject, because already well occupied by Europe). There has been much confusion about this circuit, as the schematics on the patent, and on the original Ieaflet that came with the pedal are both wrong. With Plastic it might be tough to stick to the Q1 hfe of 70 and Q2 hfe of 120, since most Plastic transistors are excess of 120 to start with. The circuit produces a nasty (in a good way), explosive octave-up fuzz similar to the Scrambler and Green Ringer. The 470-ohm resistor that’s in series using the .01?F output cap continues to be substituted for a 1K resistor, which reinforces the creation of the circuit a great deal. The original Fuzz Face used NKT275 transistors made by a British company called New Market. The output capacitor seemed to be altered from .01?F within the original issue pedals to .047?F within the reissue pedals. The circuit is designed around a single op-amp gain and hard clipping while using transistors to handle buffering and SFT131, Eventually they were replaced by components that were considered “better.” The EHX Germanium OD and Germanium 4 Big Muff Pi use these old school transistors. Fuzz God II - the insane silicon brother of Germanium Fuzz God. A multi-mode Germanium fuzz / booster inspired by british classic Fuzz boxes of the past. WHAT: Twelve germanium fuzz circuits compared and analyzed. Maximum collector-emitter voltage: 12 to 20 V. Power dissipation : 0.5 to 1.2 W (more than most of other small case transistors). Germanium transistors were used extensively back in the 1950s and ‘60s. It's wilder, it's crazier, it's the loose cannon sonic brother that you wouldn't introduce to your girlfriend, cause you know he'd try his luck with her. Still fairly easy to find. This analysis covers the first Arbitrer Fuzz Face model equipped with PNP germanium transistors from the first releases. These modifications are a few great enhancements towards the original circuit, and are the mods being done by DIYers and custom effects builders. Fuzz God II allows you to create fuzzyness of epic proportions (think red seas parting, burning bushes, pillars of salt etc). GC511, 521* by Tesla… AC124, 131, 138, 139, Germanium transistors have a … ГT402x, ГT404x*… It is the second version of the Fuzz-tone, the FZ1-A. Russians items, close to AC153, giving a vintage fuzz that crunches just what it takes. The 1K fuzz pot within the original Fuzz Faces was straight line taper a tenPercent alternation in rotation gives in regards to a 10% alternation in resistance. From left to right : AC128 by Philips / Mullard ; AC128 by Tungsram ; GC301 (GDR) ; GT402b (USSR) ; SFT363 (Italia) 1N125 is a germanium diode, but these are Silicon. The circuit has BC183L transistors, that have the B-C-E pinout. The positioning of the 33K and also the 330 resistors are complete opposite of what they’re within the Germanium version. It is the East German AC128, with a credible wet sound, albeit a bit dark. These represent the sounds of almost every fuzz pedal introduced between 1962 and 1968. The Fuzz Face has asymetrical clipping designed into it! Versions. Works well in Fuzz Faces in the position of second transistor (after AC125 or 128 as T1). Maximum frequency : 0.5 to 1.5 MHz (never higher). Maximum frequency : 0.5 to 1.5 MHz (never higher). Germanium Big Muff Pi is basically two pedals packed into one case. Consequently, Dallas-Arbiter started equipping the Fuzz Face pedals using these new transistors with various seem results. Pedals Demoed: Analogman Sun Face Germanium, ScreaminFX 1948 Germanium, Analogman Sun Face BC183, ScreaminFX 1954, Analogman Peppermint, Dunlop Fuzz Face, EHX Big Muff and Zvex Fuzz Factory The transistors that were utilized in these versions incorporated: BC108C, BC183L, BC109, BC109C, and BC209C. An excessive amount of gain may cause a Fuzz Face to seem horrid. Here’s a schematic from the original Germanium transistor form of the Dallas-Arbiter Fuzz Face: As time continued, that old germanium transistors were gradually being replaced in support of the greater stable and consistent Plastic versions. Maximum collector current : 0.5 to 1.5A (more than other small case transistors). They are labeled as silicon or germanium fuzz and there is an oscillation test with a wah wah at the end of each demo. We hand select 3 New Old Stock Philips OC41 Black Glass Germanium transistors for each pedal ensuring ideal performance and consistency. 7 Minute Fuzz Circuit. Any germanium transistor inside these characteristics, and presenting a leakage current Iceo lower than 500μA should work well in a Fuzz. The rest of the transistors which were used possess the more standard C-B-E pinout, if you stumble upon a Fuzz Face with something apart from the BC183L, the bottom and collector leads is going to be twisted around to operate correctly. A little forgotten or underestimated, so not common, alas. I used em when they appeared. As time continued, that old germanium transistors were gradually being replaced in support of the greater stable and consistent Plastic versions. Russian GT308V (ГТ308В) : germanium PNP, don’t confuse cyrillic В with latin B because it’s actually equal to latin V. Russian transistors are sorted by hFE, but using cyrillic alphabet: A (A), B (Б), V (В), G (Г)…The V variation has hFE ranging 80-150 and is used in Dunlop Bonamassa Fuzz at Q2 position. Official clone made in Hungary. Maximum collector current : 0.5 to 1.5A (more than other small case transistors). Power dissipation : 0.5 to 1.2 W (more than most of other small case transistors). With the designs past you’ll find all sorts of different variations within the fundamental original circuit, from PNP Germanium to NPN Plastic, along with a numerous quantity of fuzz pedals that derive from it. Another application of the Bazz Fuss design is the Buzz Box, also designed by Christian. Not ridiculous compared to the original Philips / Mullard. AC141*, 142, 180, 181*, 188, 187*… (almost identical, by other manufacturers) Here’s a schematic from the original Germanium transistor form of the Dallas-Arbiter Fuzz Face: Arbiter Fuzz Face ()” /> What’s Inside…The Plastic Years. Equivalents : Should you check out the schematic below, you will see that it is not quite a reissue, but a better form of the initial. Huge bomb-shaped case, which makes its vintage visual effect! 1. Of course, they get mixed up and there are overlaps, for instance, a well-behaved, dialled-back germanium fuzz can pass off as very warm overdrive and some of the more complex renditions of Big Muff circuitry certainly get very close to distortion. Recently there’s been an enormous resurgence of great interest within the original Arbiter Fuzz Faces, most likely fueled through the very mediocre sounding Dunlop Fuzz Faces. Codes have numerous suffixes, without great influence on their sound in fuzzboxes. The NKT275 was New Market's version of the AC128. Unknown or stupidly disparaged before the 1990s, they are far from being dull. We want to take a moment here to explain how you can do this on your own for both the kit version and completed versions. The General Guitar Gadgets Violet Ram's Head, MJM Foxey Fuzz, and many other violet clones were based on the 470pF version of this schematic. They are distinct from other families by their dissipable power and their maximum collector current. Initially used as a replacement piecefor maintenance, it became a reference transistor around 1967. SFT 367/377*, 370, 387… Europeans cousins one should try. v1: The first Fuzzrites used Germanium transistors, but these were not temperature stable: they didn't sound good on a cold floor. The 7 Minute Fuzz schematic can be broken down into some simpler blocks: Power Supply, Transistor Input and Clipping, and Volume Control. AC184, 185*, AC193, 194*. The build quality and performance are not as extreme, but they are consistent. It’s reliable advice, however, the Plastic versions will clearly be free from one significant problem that plagued the Germanium Fuzz Faces…temperature instability. Be sure to check the PCB and Layouts against the Schematics and vice versa to make sure there aren't any errors. Used in the Italian versions of the Tone Bender Mk1.5, in 1967-75. Germanium Fuzz Face Bill of Materials.
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