Hambrew Links

Close 136 kHz Projects

Close 500 kHz Projects

Close Multiband HF Projects

Close 160m Projects

Close 80m Projects

Close 60m Projects

Close 40m Projects

Close 30m Projects

Close 20m Projects

Close 17m Projects

Close 15m Projects

Close 12m Projects

Close 10m Projects

Close 6m Projects

Close 4m Projects

Close VHF Airband

Close 2m Projects

Close 70cm Projects

Close 23cm Projects

Close 13cm Projects

Close SHF Projects

Close Antenna Matches

Close Shack Accessories

Close Power Supplies

Close Test Equipment

Close µController Arduino

Junk Box Circuits

Close Tubes

Close Transistors BC-Serie

Close Transistors BD-Serie

Close Transistors BF-Serie

Close IC 74XX-Serie

Close IC 74LSXX-Serie

Close IC 74SXX-Serie

Close IC LM-Serie

Close IC TDA-Serie

HF Propagation


   visitors online

Rate this Site

The DXZone.com

(with 10 = top)


4m Projects - Amplifiers

Click to enlarge160 W MOSFET PA by GIØGDP
This amplifier is intended to be simple in design, easy to build and as cheap as possible.
Using a SD1487, the results are typically 15 watts in and 75 out.

Click to enlargePre-amplifier for 70 MHz by G3PTU
This unit uses a dual gate MOSFET. You can use virtually any of this variety of semiconductor; the ‘Philips’ radial type e.g. BF981 appears to be just as good as the top hat types.

Creation date : 10/11/2011 @ 23:42
Last update : 26/09/2014 @ 21:31
Category : 4m Projects
Page read 12137 times

Print the article Print the article

Google Ads

^ Top ^