NRAO
webpage for Paul
Harden, IF/LO Lab, X7142
My wife, Jan (NØQT) listening
on her QRP ham rig at the
Very Large Array (VLA) radio telescope near Socorro, NM
And you thought only Jodie Foster got to do that!
The HOMBREWER'S HOBBY PAGE
Click here for my 2004 QRP To The Field
"Battle Stations"
photos & comments (PDF)
XXOOXX
">
[PDF]
Tutorial
– Designing different types of transmitter PA output
low pass
filters (LPF)
[PDF]
Tutorial
– The Handyman's Guide to MOSFET Class D/E/F amplifiers - Part 1
[PDF]
Tutorial – The Handyman's Guide to
MOSFET Class D/E/F amplifiers
- Part 2 - incomplete/reformatting in-progress
[PDF]
Tutorial
– The Handyman's Guide to Oscilloscopes
- Part 1 (5 pages) - updated May2004 with actual oscope
displays
[PDF]
Tutorial
– The Handyman's Guide to Oscilloscopes
- Part 2 (4 pages)
[PDF]
Hints & Kinks on
building a "3rd Hand"
for holding circuit boards, cables, etc. for the
workbench.
[PDF]
Hints & Kinks on doing Metal Work
-
tapping holes and other metal work practices
[PDF]
Hints & Kinks
on how to paint
& label
electronic project enclosures
[PDF]
Hints & Kinks on building electronic circuits Manhattan
Style (a proven QRP copper clad technique)
Construction Projects
[PDF]
Schematic
– DESERT RATT
(original 1996-1997 circuit as published on QRP-L, QRPp, etc.)
[PDF] JPEG Schematic
- DESERT RATT 2 (Updated 2001 for varicap tuning, construction hints
and voltage/waveforms)
PHOTOS
of those building the DESERT RATT: Ricardo/Mexico
[PDF]
Circuit Description –
DESERT RATT 2
[PDF]
4/P CONVERTER: 74–500 MHz to 1.1–1.5 GHz
Upconverter – built Manhattan
style
[PDF]
The
74MHz/P-Band TEST SET - front panel & top view
[PDF]
74 MHz Oscillator (part of Test Set) – built Manhattan style
[Schematic]
[PDF]
Noise Source & 1024
MHz LO (part of Test
Set) – built Manhattan style
[Schematic]
[PDF]
300–400 MHz Sweep
Oscillator (part of Test
Set) – built Manhattan
style [Schematic]
