Update for 11-11-21 14:15

tech/Capacitor.wiki

@@ -3,3 +3,7 @@
 A Capacitor is a component that stores energy in an electric field. It does
 this by having two plates seperated by a dielectric. This is called
 capactitance and is measured in farads (F).
+
+Capacitors are resistant to changes in voltage, and therefore can be used to
+smooth out sudden changes. They also cause AC signals voltage and current to
+get out of sync

tech/Fuse.wiki

@@ -0,0 +1,4 @@
+= Fuse =
+
+A fuse is a current sensitive component that will "blow" when a certain current
+is reached, killing the circut. This is useful for protecting components.

tech/Ham.wiki

@@ -30,3 +30,7 @@ see [[frequency_range]]
 == Electronics ==
 
 see [[electronics]]
+
+== Signals ==
+
+

tech/Impedance.wiki

@@ -5,3 +5,6 @@ However, they can become out of phase when passing through a [[Capacitor]] or
 [[Inductor]]. Capacitors are resistant to changes in voltage, causing voltage
 and current to get out of sync. Inductors are resistant to chagnes in current,
 causing voltage to get out of sync.
+
+This getting out of sync is called reactance. The total reactance is called
+Impedance. Impedance is measured in Ohms, shown as Z

tech/Inductor.wiki

@@ -3,3 +3,7 @@
 An Inductor is a component that stores energy in a magnetic field. It does this
 by using a current flowing through a coil of wire, often around a magnet.
 Inductance is measured in Henery's (H)
+
+Inductors are resistant to changes in current, and therefore can be used to
+smooth out sudden changes. They also cause AC signals voltage and current to
+get out of sync.

tech/Oscillator.wiki

@@ -0,0 +1,5 @@
+= Oscillator =
+
+An oscillator produces signal at a set frequency. They are useful for creating
+the base signals upon which modulation can be performed to encode information.
+An Oscillator is also known as a Clock.

tech/Resonance.wiki

@@ -0,0 +1,6 @@
+= Resonance =
+
+Resonance is the phenomenon in which the impedance from several
+capacitors/inductors cancel each other out in a circut. This cause the circut
+to be "tuned" to a certain frequency. Resonance creates a filter, rejecting
+certain frequencies and allowing others.

tech/electronics.wiki

@@ -24,12 +24,21 @@ and R is resistance(Ohms).
 Power is Voltage times Current and is measured in Watts (W). Power is a rate
 upon which electrical energy is used.
 
+Also see
+
+* [[Impedance]]
+* [[Resonance]]
+
 == Primitive ==
 
 * [[Resistor]]
 * [[Capacitor]]
 * [[Inductor]]
-* [[Impedance]]
+* [[Fuse]]
+
+== AC/Radio ==
+
+* [[Oscillator]] 
 
 == Combinational ==
 

tech/frequency_range.wiki

@@ -8,11 +8,16 @@ standardized. They appear below
 | Very Low Freq     | VLF | 3khz - 30khz   |                                   |
 | Low Freq          | LF  | 30khz - 300khz |                                   |
 | Medium Freq       | MF  | 300khz - 3mhz  | AM Radio                          |
-| High Freq         | HF  | 3mhz - 30mhz   | Shortwave        |
+| High Freq         | HF  | 3mhz - 30mhz   | Shortwave, 10m to 1m              |
-| Very High Freq    | VHF | 30mhz - 300mhz | VHF TV, FM radio |
+| Very High Freq    | VHF | 30mhz - 300mhz | VHF TV, FM radio, 1000cm to 100cm |
-| Ultra High Freq   | UHF | 300mhz - 3ghz  | UHF TV, 3G/4G    |
+| Ultra High Freq   | UHF | 300mhz - 3ghz  | UHF TV, 3G/4G, 100cm to 30cm      |
 | Super High Freq   | SHF | 3ghz - 30ghz   |                                   |
 | Extreme High Freq | EHF | 30ghz - 300ghz |                                   |
 
+To calculate a wavelength from a frequency 
 
+WL = c / f
 
+Where WL is wavelength,
+c is speed of light (3 * 10^8 m/s)
+f is frequency