Maser
maser
Roughly speaking, resistance. Transconductance refers to the reciprocal of the amplifying device's internal resistance. The concept is particularly useful if the device is a voltage-controlled current source (tube or FET). In vacuum tube amplifiers, transconductance (Gm) is (u / Rp), where... u is the amplification factor. u= (Gm x Rp). Rp is the anode (drain) resistance. Rp is the internal resistance of the amplifying device. Gfs is synonymous with Gm. The reciprocal of Gm (or Gfs) is (Rp / u). Another term for this reciprocal is transresistance.
Before the famous Light Bulb, in 1762, Johan Carl Wilcke described the electrophorus, a device for generating electricity [see Wikipedia for more details].
Central Electricity Generating Board was created in 1957.
suggest another circiut for generating the ASK signal
Control systems are synchros which are used in error detection. They provide a voltage to be converted to torque through an amplifying method.
a maser
Active filters.
your mum :D
A Geiger Counter
A Geiger Counter
A RF amplifier is a device for electrically amplifying the power of an electrical signal, typically, but not exclusively, radio frequency signals.
I would say an ethernet extender/booster/repeater.
By making adjustments to whatever device is generating the sound.
Microwaves
A Geiger meter satisfies those requirements.
If by triode, you mean "a three-electrode tube", then yes. You need a source of current into the device, a control electrode, and an "outlet" for the controlled current. Although there were radically different types of construction, all early amplifying tubes were triodes of some kind.
Inside a microwave oven,microwaves are made when electricity passes through a device called Magnetron.Magnetron uses a strong magnet. The electricity and the magnet make microwave electromagnetic.