s, probably now worth more by weight than anything else on four legs .. I went on Digikey, armed with a data sheet, and there do. NTE Equvilent NTE MOSFET N-CHANNEL DUAL GATE 20V IDSS= 5- 35MA TO CASE GATE PROTECTED VHF AMP/MIXER NTE Data Sheet. Tube or Röhre ID, Transistor, Wires and VHF shown. Radio tubes are valves.
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Unless you want to, that is. By comparison, nowadays we can quickly buy almost any device or component in production from a multitude of suppliers. Epoxy-blobs, I tell you!
40673 MOSFET. Datasheet pdf. Equivalent
You had to buy the kit, or hope the author would supply 4073 IC. Others would use the same device, because someone had chosen it.
Circabipolar transistors datashert had improved noise figure. That thing is everywhere and not very many others can run off a single supply which the lm was famous for. What the full-blown rant in the previous paragraphs has been building up to is this: Detector diodes have modern replacements, but power germaniums do not, and I have searched hard! Some might say that there is an element of snake oil about the process: Zombie components are alive and well in the aviation world.
The 45 dB range 8 bits in voltage devices are dirt cheap and super common. In general, they still keep the same functionality and numbering-scheme. 4067 perhaps that meant stock. I encourage everybody to design with that part so it will be continue to be made! Thus an association was formed, when you want a quick logic function then 74HC is the modern one to go for.
The second gate also made it easy to control the gain when used as an RF amplifier. Of course, if you know of a good candidate for replacing theplease share the details. Germanium point-contact diodes, for example.
The big retailers still have catalogs. There is of course also a slightly macabre alternative scenario. Another example is the famous and storied 2n transistor made by Central Semi. In the early sixties, the JFET came along, those were seen as less prone to overload. These publications were our only window into the world of electronic components.
Datasheet, PDF – Alldatasheet
I would say every through-hole part in the world is on the verge of being eliminated. And people wonder why I hoard old analogue TV tuners. If I specify a transistor with a low price and an equivalent substitute I can be sure that my employer will be able to buy that part well into the future.
I only buy 1 nF, 10 nF, nF etc.
Manufacturer names and part numbers would be better. Pocket money single board computers with real power and easy interfacing.
To provide fail-proof as much as possible! Daasheet thought someone kept making germanium, 40637 it may be as much as twenty years since I heard that. I use a as a mixer as it happens, and in my application you start to hear the performance tail off somewhere above 10MHz with the HC part.
You could pull roofing filters out of them, and crystals to convert from there to KHz, and complete KHz fm if strips. That is exactly what I suspected. The most commonly seen alternative NE is probably equally suitable, datashet a bit more expensive.
Which exactly are dxtasheet parts that daatsheet superseded the 74HC? For me to do good work I have to have a good concept of the parts catalog and keep up with new parts from suppliers and the state of the industry.
The other elephant in the room is that the military does need parts also. When ICs came along, that got more complicated, especially as time went on.
On the gripping hand, Sometimes I think the FTDI clones got it right; emulate and package as the original, name it as the original, and use modern process inside, invisible to the hobbyist. Ahh, you can help me with building my quasi nuclear phase locked loop synthesized equalizer. As a non-professional hobbyist, the issue comes from the specification and the tools we are given to compare.