Home |
Search |
Today's Posts |
|
#1
![]() |
|||
|
|||
![]()
Andreu wrote:
Hello, first thanks for your comments and suggestions, and sorry for my tri-post...sometimes thunderbird combined with my nerves make for such nasty things. Regarding the IC, please look at: http://www.qsl.net/va3iul/Homebrew_R...eyer_W9HFM.gif and you will see a CW keyer build around a single IC (MC787P in this case). So yes, such a rare beasts exist ...lol. They consist of a J-K flip-flop and 2 or 3 gates. The problem is that they are dated back from the 70's and doesn't exist anymore, so I was looking for a more current one. These days, people designing an entire circuit around a single IC use a microcontroller. E.g. a PIC or something from AVR. |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
![]() |
||||
Thread | Forum | |||
Uk500 kHz Multifunction Beacon using 5 Meg experimetal system | Shortwave |