britannica.com: Siemens Citat: "...In the case of direct current (DC), the conductance in siemens is the reciprocal of the resistance in ohms...", backup
physicsclassroom.com: Electric Circuits - Lesson 3 - Electrical Resistance Citat: "...An electron traveling through the wires and loads of the external circuit encounters resistance. Resistance is the hindrance to the flow of charge...The electrons encounter resistance - a hindrance to their movement...The standard metric unit for resistance is the ohm, represented by the Greek letter omega - Ω...", backup
sound-au.com
Elliott Sound Products, Rod Elliott: Audio Test Oscillator Citat: "...If you happen to find thermistors that look like this, then (and only then) can you build the circuit shown in Figure 7. There are many different thermistors available from nearly all suppliers world-wide, but only this type can be used for amplitude stabilisation of an oscillator. Most 'normal' miniature thermistors are designed for temperature sensing, and are not suitable...Lamp stabilisation was used in the first commercially available sinewave oscillator made by Hewlett Packard, and in many subsequent versions...", backup
tronola.com
tronola.com: Using lamps for stabilizing oscillators Citat: "...Notice that Jim raises the issue of the thermal mass of the lamp affecting stability at low frequencies. If the lamp can heat up and cool down slightly from peak to peak of the signal, then its amplitude will vary, bouncing up and down irregularly...", backup
web.archive.org
physicsclassroom.com: Electric Circuits - Lesson 3 - Electrical Resistance Citat: "...An electron traveling through the wires and loads of the external circuit encounters resistance. Resistance is the hindrance to the flow of charge...The electrons encounter resistance - a hindrance to their movement...The standard metric unit for resistance is the ohm, represented by the Greek letter omega - Ω...", backup
britannica.com: Siemens Citat: "...In the case of direct current (DC), the conductance in siemens is the reciprocal of the resistance in ohms...", backup
tronola.com: Using lamps for stabilizing oscillators Citat: "...Notice that Jim raises the issue of the thermal mass of the lamp affecting stability at low frequencies. If the lamp can heat up and cool down slightly from peak to peak of the signal, then its amplitude will vary, bouncing up and down irregularly...", backup
Elliott Sound Products, Rod Elliott: Audio Test Oscillator Citat: "...If you happen to find thermistors that look like this, then (and only then) can you build the circuit shown in Figure 7. There are many different thermistors available from nearly all suppliers world-wide, but only this type can be used for amplitude stabilisation of an oscillator. Most 'normal' miniature thermistors are designed for temperature sensing, and are not suitable...Lamp stabilisation was used in the first commercially available sinewave oscillator made by Hewlett Packard, and in many subsequent versions...", backup
