JBOT – An Easy QRP linear amplifier

July 1, 2009 | Amateur Radio | By: Mark VandeWettering

During a morning chat, N2MCS mentioned that he was looking at a simple QRP linear amplifier design and gave me the following url:

JBOT – An Easy QRP linear amplifier

It was designed by Ashar Farhan, VU2ESE, who is perhaps better known as the designer of the rather popular BitX20 rig. The amplifier takes a single milliwatt up to a QRP gallon, and uses only bipolar transistors. Definitely interesting.

Comments

Comment from Compare amateur rigs
Time 7/1/2009 at 2:21 pm

Thanks, it’s a nice design. I also like the homebrew signal generator. I was actually looking for something like that.

Pingback from 0x1 » Blog Archive » QRP RTTY?
Time 7/3/2009 at 2:43 pm

[…] 40m QRSS beacon and then drive Ashhar Farhan’s JBOT linear ampilifier (that I was discussing with Mark K6HX). Hans uses a backwards LED as a varactor, pretty […]

Comment from 9w2pju
Time 4/14/2010 at 12:09 pm

nice post.
found your blog while googling for n2mcs.

73s