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[Feature] Filament center tap on tubes #792
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Hm. In the second example it could be just an anchor, probably (although that will probably need one more |
Sorry about this, I only noticed this just now! However I can work around this so there is no hurry from my side at least |
No problem. Wednesday is a holiday here; maybe I can look at it. |
it looks good to me! |
Add a center tap for tube's filament Closes #792
Several new components, and a bug fix for a nasty long-standing bug about switching diode types. - Added a Relais-Shape (contributed by [Jakob "DraUX" on GitHub](circuitikz#795) - Added a center tap anchor for tube's filament (suggested by [user bogger33 on GitHub](circuitikz#792)) - Added neon lamps (two versions, suggested by [user bogger33 on GitHub](circuitikz#793)) - Added a configurable spark gap (suggested by [user bogger33 on GitHub](circuitikz#800)) - Fix a long-standing problem when [(locally) switching diode type](circuitikz#794)
Several new components, and a bug fix for a nasty long-standing bug about switching diode types. - Added a Relais-Shape (contributed by [Jakob "DraUX" on GitHub](circuitikz#795) - Added a center tap anchor for tube's filament (suggested by [user bogger33 on GitHub](circuitikz#792)) - Added neon lamps (two versions, suggested by [user bogger33 on GitHub](circuitikz#793)) - Added a configurable spark gap (suggested by [user bogger33 on GitHub](circuitikz#800)) - Fix a long-standing problem when [(locally) switching diode type](circuitikz#794)
Is your feature request related to a problem? Please describe.
I wasn't sure whether to file this as a feature request or component request, but some tubes like e.g. the very popular 12AX7 (ECC83) have a center tapped filament, so it can be used with multiple different voltages (either in series or parallel). It would be useful to allow making a connection to the center point of the tube filament in circuitikz to allow for pinout descriptions as well as just more unambiguous circuit diagrams. (It's worth noting that the 12ax7 is a double triode so it might be represented by two triode symbols, but filament splits also exist on tubes which are just single pentodes, etc)
Describe the solution you'd like
An option for connecting to the center point of the filament. I apologize if this already exists and I missed it, but I could not find it in the manual.
Additional context
Center taps are usually represented in diagrams in one of two ways.
Either as two filaments (i.e. two triangles/half-circles each representing one half of the filament):
Or just a tap in the center of one filament:
It seems to me that the former is more common, but neither is unusual in my estimation, and the latter would probably be simpler to add.
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