Topband: Preamplifier with 2x 2n5109 pushpull

[Sergio Cartoceti]

To KK7UV and topband list





You need a well wound input - output ferrite toroidal transformers to
combine them and get a broadband match to 50 Ohm and

some kind of feedback and a proper level of bias current.  They work
well.   For just some photos take a look in my web site at:

http://www.qsl.net/ik4auy/   (when inside from the main menu click
HOMEBREW GALLERY by I4FAF, then click SRC-02

                                           inside photos)

Let me know if you like that device as it appears.



Merry Christmas and Happy New Year to all TOPBAND reflector.


Sergio Cartoceti, IK4AUY

(also AC7PC)

e-mail:  <mailto:ik4auy@arrl.net> ik4auy@arrl.net