tetrode mosfets?

[$uperpuma]

in the large lot of parts I got I got a ton of these... when I look up the parts numbers I don't find any data sheets, or internal diagrams... useful at all?

[soulsonic]

Please excuse my ignorance, but what is a Tetrode MOSFET? Is it one of those ones that doesn't have the body diode internally connected so it has four leads?

[km-r]

must be a dual gate mosfet??

[petemoore]

http://www.ortodoxism.ro/datasheets/infineon/1-bf1009s.pdf
  http://www.datasheetcatalog.com/datasheets_pdf/B/F/1/0/BF1009S.shtml
  For low noise, high gain controlled
input stages up to 1GHz

Operating voltage 9V

Integrated bias network
  Looks to me like a VHF amp...

[$uperpuma]

thanks for the info guys... should probably be MY ignorance that should be excused.... just trying to ID the parts I've got...  keep and use the ones I can, and pass the rest on to someone who will use them.

thanks!

[Sir H C]

Could these be used in the tremolo from Walco?  I would guess you could run them as a cascode device pretty easily.

[markm]

Nate, these aren't SMD are they?

[$uperpuma]

Mark, nope, standard metal can package, but four legs.. which from has been said here, is probably 2 gates...