Schmatic Elements and Block Diagrams Symbols

[C2]

I'm looking for a comprehensive library of schematic elements and block diagram symbols. Stuff like VCOs, mixers, filters, detectors, couplers, dividers, multipliers, diplexers, duplexers, etc...

 

[noyb72]

http://www.phy.davidson.edu/instrumentation/NEETS.htm

This is all the modules. The table you are looking for is in one of them, they are all excelent and I can't recomend them enough. Sorry, it's been about 8 years since I've completed them.

Ron

 

[GRTS]

Here are a few to start things off,

http://library.thinkquest.org/10784/circuit_symbols.html
http://www.aaroncake.net/electronics/schem.htm
http://www.ibiblio.org/obp/electricCircuits/Ref/REF_9.html
http://www.allaboutcircuits.com/vol_5/chpt_9/3.html
http://encyclobeamia.solarbotics.net/articles/symbols.html
http://www.kpsec.freeuk.com/symbol.htm

 

[C2]

OK, I could not find a symbol for a forward coupler, directional coupler, leveling coupler, RF sampler...

I figured a quadrupler could just be drawn as a box with "X4" and put in filters/amplifiers as appropriate:

-[-LPF-AMP-X4-AMP(with modulator control)-BPF-]-

How would you represent the modulator (or level control)?

 

[GRTS]

OK, I could not find a symbol for a forward coupler, directional coupler, leveling coupler, RF sampler...

I figured a quadrupler could just be drawn as a box with "X4" and put in filters/amplifiers as appropriate:

-[-LPF-AMP-X4-AMP(with modulator control)-BPF-]-

How would you represent the modulator (or level control)?

Modulator and coupler symbols can be found here,

http://www.iee.org/OnComms/Circuit/benefits/Editorials/Features/Units & Symbols.pdf

 

[ken white]

Great links guys!

 

[C2]

Yes, thank you all for the great links. That last one even had a delay line.