All pcb designs are made with Layo1.
|
Simple 555-timer circuit. Suitable as a varicap drive. Input 12Volt, Output +33Volt and -24Volt All diodes are 1N4148, all elcos are 10µF |
BF981 FM v.c.o. A simple low power FM oscillator. Not very suitable for radio broadcasting !! |
Universal pcb for PIC16F870 or PIC16F876 Connection for HD44780 character lcd. Analog / digital I/O, including I²C. |
PIC16F877 & Graphic lcd. 4x digital I/O, 8x analog input. Optional RS232 communication. |
PIC16F628 - SAA1057 FM / HF pll. HF -> 0.512 - 30 MHz or FM -> 70 - 120 MHz |
Sinlge frequency Pll PIC12F629 & SAA1057 Use HexWriter (hw) software to make hexcode. |
TSA5511 & 4060 Universal setup for TSA5511 pll. HEF4040 makes 3.2MHz from a 6.4MHz crisrtal. |
Sinlge frequency Pll PIC12F629 & TSA6057 Use HexWriter (hw1) software to make hexcode. |
J310 MW v.c.o. PIC16F628 & SAA1057 Intended as a "cristal replacement" for MW applications. |
Averaging audio rectifier. Two audio inputs. Usefull for an averaging audio VU meter. |