Germanium transistor

Semi-conducteurs sont disponibles chez Mouser Electronics. Les transistors SiGe sont des transistors bipolaires à hétérojonction qui sont couramment utilisés dans le domaine des hyperfréquences en amplification faibles signaux (facteur de bruit faible). La structure du germanium ne peut être . Histoire de sa découverte. Ge- Transistor NPN NF-E 32V 1A 1W.

Semiconductors are available at Mouser Electronics.

I heard that OC75s (or NKT275s, or AC128s, etc ) sound best, is that true? Certain transistors are sought after because they were used in original pedals, or by reputation of good tone. Germanium Transistor FAQs. Now its charge-carrying abilities and advanced fabrication technology make it an attractive material for future chips. As a proof of concept, the author and his team used germanium -on-insulator wafers to . We take a look at why germanium transistors in guitar fuzz effects pedals are so popular, along with a little bit of history.

I think is more likely an urban legend but there it should be something of true. The germanium has a B-E voltage of 0. So the silicium transistors have a greater crossover distortion (zero crossing).

Increasing the rest current the problem is solve also with silicium, but it is well known . UPDATE: My Dunlop Fuzz Face Mini review is live at Premier Guitar. I used to consume article after article detailing the sheer horror of dealing . Testing some Ge, transistors in a classic fuzz-face circuit. Other transistor types available on request – drop us a line!

Silicon transistors started replacing germanium but I guess not quick enough for that article. Prior to large scale commercialization, Motorola engineers developed . 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. Learn why germanium transistors are vital elements of vintage fuzz, distortion, and boost pedals. It can be used for volume boost and shaping, or for additional drive pushing a gain stage.

Hello, Would this page be of any help? It shows the spice models for the AC1and AC1Bertus. GT308V for PNP and MP38A for NPN are both great.

For higher gain the GT402B are nice for PNP and ranged from to 1hfe. All transistors that I measured .