Relays up to 100 mA can be driven by the 555 with the recommended circuit. The circuit is from an article in the September 1992 Radio Electronics magazine.
The deviation of characteristics of this circuit normally referred to the temperature is very low....
Found in a 1969 Electronics World, this circuit generates low frequency signals with two...
Suggested by Texas Instruments in 1968 documentation, this circuit uses components from the era....