Home |
Search |
Today's Posts |
#1
![]() |
|||
|
|||
![]() KB6NU's Ham Radio Blog /////////////////////////////////////////// QRPGuys K7QO CPO a Nice Starter Kit Posted: 09 Apr 2016 05:23 PM PDT http://feedproxy.google.com/~r/kb6nu...m_medium=email The QRPGuys K7QO Code Practice Oscillator (CPO) is about as simple a kit as you can get. The parts list includes 11 components, and four of those are stick-on rubber feet! As you can see from the photo at right, its really just a battery (a CR2032 coin cell, not included), a phone jack for the key, and piezoelectric oscillator. All told, there are only 14 solderÂ*joints to make, and about the only thing you can get wrong is to put the oscillator in backwards. That, plus the fact that it only costs $10, makes this a great starter kit. The piezoÂ*oscillator is really loud, but you can add a volume control, if you like. Instead of soldering in a jumper between two pins, you add a 50-ohm potentiometer. What I did was to simply cover up a portion of the output port of the oscillator. That seemed to work pretty well. Im thinking that building this kit might be our next ham radio activity down at the Ann Arbor District Librarys Secret Lab. The post QRPGuys K7QO CPO a Nice Starter Kit appeared first on KB6NUs Ham Radio Blog. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
[W2LJ] QRPGuys new kit | Equipment | |||
PDs and GMs declare HD Radio a non-starter! | Shortwave | |||
Suggestion for an HF starter rig | Moderated | |||
Starter Rigs | Equipment | |||
Looking for good starter radio | Shortwave |