Schematic and Some Component Information
QRP/SWL HomeBuilder Schematics
I have attempted to make the schematics as readable and small in file size as possible. They were all hand drawn using the Paint Program that ships with all Microsoft Windows(tm) operating systems. The clipboard is used extensively to copy and paste the desired components from previous schematics so that very few new components are ever drawn; rather they are recycled from schematic to schematic.
The bitmaps are reduced to 8-bit (256 color) using another graphics program and then compressed as GIFs. They are best viewed with a screen resolution of 1024 by 768 pixels. For editing purposes, they may be converted back to bmp file or edited directly as GIFs within the Windows Paint Program.
Resistors
For resistors 2K2 = 2.2K ohm = 2200 ohm , 4K7 = 4.7K = 4700 ohms etc.
All resistors are 1/4 watt unless stated otherwise.
All resistors have a 5% tolerance unless stated otherwise.
Capacitors
All capacitors are in microfarads unless stated otherwise.
Electrolytic types including non-polar are written as 22uF, 10uF etc.
All capacitors seeing + 13.8 VDC are rated at 25 volts DC.
All audio frequency coupling caps not connecting headphones or speakers are rated at 16 volts DC.
All radio frequency caps are rated at 50 VDC or greater.
All non-polar diplexer caps are rated at 25 VDC or better.
Package Pin outs Shown from BOTTOM VIEW
