# triode

## Definitions

• WordNet 3.6
• n triode a thermionic vacuum tube having three electrodes; fluctuations of the charge on the grid control the flow from cathode to anode which makes amplification possible
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## Usage

### In news:

The Technical View I'll quote from a spec sheet on the Jadis parallel single-ended triode amplifiers prepared by Jean-Paul Caffi.
Early on in my listening, I did a great deal of comparing the Rogues ' triode and ultralinear modes.
The upgrade is available for Breverb (pictured), TH1 and TH1 Triode, and is free for all registered users.
The 12AV7 tubes (each system uses two of them) are dual triode vacuum tubes and are utilized in the preamplification stage.
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### In science:

It follows from a result of Sher that even if M contains a triod, if M /G and every element of G are tree-like, then M is tree-like.
Problems from Topology Proceedings
One gets examples exhibiting neither hexagonal cells nor triodes by a slight modiﬁcation of the construction in section 3 (Corollary 5.10).
The existence problem for Steiner networks in strictly convex domains
For the ‘smoothed Reuleaux triangles’ deﬁned by pǫ in (1.4), the corresponding ωǫ vanishes at the same points, and uǫ is everywhere positive; so these curves also support two triodes.
The existence problem for Steiner networks in strictly convex domains
We use the nonexistence criterion: if u < 0 at every zero of ω in a ‘fundamental domain’ (i.e., an interval of length 2π/3), then C supports no triodes.
The existence problem for Steiner networks in strictly convex domains
Then for al l λ ∈ (0, 1) suﬃciently close to 1, the function: pλ (θ) = (1 − λ) ˜p(θ) + λp0 (θ) is in Psmooth , and is the support function of a C 2 strictly convex curve which does not support triodes.
The existence problem for Steiner networks in strictly convex domains
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