Editing Electronic oscillator (section)

=== List of harmonic oscillator circuits ===
Some of the many harmonic oscillator circuits are listed below:

{| class="wikitable" style="float:right;margin:0 0 1em 1em;"
|+ style="font-size: 80%"|Amplifying devices used in oscillators and approximate maximum frequencies<ref name=" Raisanen" />
|-
! Amplifying device
! Frequency
|-
| [[Triode]] vacuum tube
| ~1&nbsp;GHz
|-
| [[Bipolar junction transistor|Bipolar transistor]] (BJT)
| ~20&nbsp;GHz
|-
| [[Heterojunction bipolar transistor]] (HBT)
| ~50&nbsp;GHz
|-
| [[MESFET|Metal–semiconductor field-effect transistor]] (MESFET)
| ~100&nbsp;GHz
|-
| [[Gunn diode]], fundamental mode
| ~100&nbsp;GHz
|-
| [[Magnetron]] tube
| ~100&nbsp;GHz
|-
| [[High electron mobility transistor]] (HEMT)
| ~200&nbsp;GHz
|-
| [[Klystron]] tube
| ~200&nbsp;GHz
|-
| [[Gunn diode]], harmonic mode
| ~200&nbsp;GHz
|-
| [[IMPATT]] diode
| ~300&nbsp;GHz
|-
| [[Gyrotron]] tube
| ~600&nbsp;GHz
|-
|}

* [[Armstrong oscillator]], a.k.a. Meissner oscillator
* [[Hartley oscillator]]
* [[Colpitts oscillator]]
* [[Clapp oscillator]]
* [[Seiler oscillator]]
* [[Vackář oscillator]]
* [[Pierce oscillator]]
* [[Tri-tet oscillator]]
* [[Cathode follower oscillator]]
* [[Wien bridge oscillator]]
* [[Phase-shift oscillator]]
* Cross-coupled oscillator
* [[Dynatron oscillator]]
* [[Opto-electronic oscillator]]
* [[Robinson oscillator]]
{{clear}}