Post subject: Please help to identify the transistor
(or amplifier) Posted: Thu Aug 23, 2007 4:38 am
Joined: Thu Aug 23, 2007 4:20 am
I need help in identifying the following
transistors/amplifiers (see links to the photos below). They differ
only in the marking (on the first the marking is "2n" and on the
second "2i" or "2t").
I've tried to search according to the marking ana have not find
The components are used inside voltage control
oscillators (VCO) designed for high frequencies (4 - 6 GHz) and
for 1 GHz bandwidth each.
Every VCO has only one of this
The VCO is a regular Colpitts oscillator and
the component (I'm trying to find out its P/N) is actually the transistor
used to provide the negative resistance.
As could be seen
at the photos the component has four leads, one of them is not used.
The other three are used as Emitter, Collector and Base of bipolar
I need the manufacturer of these parts and part
numbers if possible.
I will appreciate your help!
Post subject: helloPosted:
Thu Aug 30, 2007 9:50 am
May 02, 2006 4:59 am
very difficult to idetify this parts.
You must try to give us
I know some transistors has more details
in there side like these example :