I do agree that it is a nice article and a good test. However I noticed that the resistors and capacitors on the breadboard looks to be put together in a hurry. All the component legs have huge bends as well as the legs way longer than they need to be.
I bet if you've used some time and had only sharp bends on the component legs, then it would solve some of the problems.
Therefore I thing the breadboard cannot be that guilty
My young Padawan, actually sharp bends will add additional problems with mutual coupling, both inductive and capacitive. Skyscraper circuits have been used in RF for decades.
When I was young and played with chemicals, all my rockets exploded and all my bombs flew up very high.
Later when I played with electronics my first amplifier oscillated.
When I was young and played with chemicals, all my rockets exploded and all my bombs flew up very high.
Later when I played with electronics my first amplifier oscillated.
Over the years many threads have revolved around the poor operation of a circuit built on a breadboard, the type with lots of strips where components can be plugged in to make the connections.
Breadboards weren't so much invented as they just happened. Far before what most people would call a breadboard existed Amateurs would use scrap wood (sometimes an actual cutting board) pegged with nails to put radio's together using solder. The modern version has a patent associated with it from 1971 (referenced from a maker (BPS) as to the origins of the solderless breadboard) (US Patent #203938) but I can't look up the patent on the governments site to verify.
Breadboards weren't so much invented as they just happened. Far before what most people would call a breadboard existed Amateurs would use scrap wood (sometimes an actual cutting board) pegged with nails to put radio's together using solder. The modern version has a patent associated with it from 1971 (referenced from a maker (BPS) as to the origins of the solderless breadboard) (US Patent #203938) but I can't look up the patent on the governments site to verify.
I have a very oold prototyping board which is just this, hardboard (presspan) with holes in and shortened nails with rubber sleeves, you put the pin through the board then put 2 or more comoent wires against the pin then hold them in place with the rubber sleeve.
Never used it too much messing about, it would probably be a lot better at rf than a wishboard though.
I have a favorite quote Mike that I got on a T-shirt from my wife for Christmas a couple years ago. It says "I really do know everything, I just can't remember it all at once"
I do agree that it is a nice article and a good test. However I noticed that the resistors and capacitors on the breadboard looks to be put together in a hurry. All the component legs have huge bends as well as the legs way longer than they need to be.
I bet if you've used some time and had only sharp bends on the component legs, then it would solve some of the problems.
Therefore I thing the breadboard cannot be that guilty
Some component wires on your new neat circuit are still far too long. Each long wire is an inductance that messes up high frequencies.
The wires with the alligator clips are also inductances.