need 2N4416 / NTE452 equivalents

Not very likely to be found in an audio amp.

You sure that number is not 2N5416 ??

........ Phil

Mouser

Cheers, John

Thanks, I see them in stock.

Dad told me they're for an RF amplifier (I think it's the 300 W amp in his shop)... and he's certain they are 2N4416 ($2.73 @ Mouser). Was hoping to get some equivalents that Digikey stocks, so I can order these along with my Atmel micros...

We're looking at an NTE book, and dad thinks the NTE133 is pretty close to what he wants. ($0.98 at Mouser.) NTE452: 5,500 micromho transconductance; NTE133: 4,000 micromho. Good idea, or just go for the 2N4416..?

Thanks all,

Michael

" Can anyone recommend any equivalent transistors? They're for an old audio amp that dad's trying to repair. "

....... Phil

Ok, fine, an *audio amp* would lack a tuner... but besides that, aren't they the same thing? ;-)

How's the spring coming out there in Australia?

Later

Michael

You easily qualify -

First, you said "transistors" when the part is a JFET.

Then, you said it was for a 300 watt RF amp !!

" Dad told me they're for an RF amplifier (I think it's the 300 W amp in his shop)... "

NOW, you've decided the JFET is in some radio tuner.

Any more of your *f****ng wild guesses* in the pipe line ??

Imbecile.

...... Phil

My, you're friendly. Long Australian winter must have gotten to you.

My expertise is not in electronics. Not by a long shot. I couldn't tell the difference between a FET, a MOSFET or a transistor. I'm a chemical engineer, not an electrical engineer.

So... to anyone who's a bit less of a potty-mouth than Phil over here... NTE133 good enough of a sub for NTE452, yea or nay?

Phil, good luck to you in life. With a better attitude, you'd go farther.

Michael

YOU are just another pig arrogant Septic Tank cunt.

Millions of them crawling all over the USA.

And far too damn many other places as well.

....... Phil

Actually, all three are types of transistors, as in JFET = Junction Field-Effect Transistor, but who's counting.

As for using NTE "equivalents," I've never been very happy with that approach, mostly because of their horrible habit of hiding the true source of the part, and of not providing proper engineering data. The first they do because you're spending 5 - 10x more on their part, and they want to keep it that way, and the second because a) they're lazy and b) they're hiding the true part's identity. You may match up gfs, or some other, but what about Vth, Coss, Crss, etc.?

So, instead, why not get the real thing, if it's available?

One reason you won't find the exact 2n4416 part number from many vendors is because it has a metal TO-72 case, and most of us long ago switched to the same die in a plastic case. If the part doesn't sell, and if manufacturers don't want to make it, they're not going to carry it! The plastic TO-92 parts have numbers like PN4416, KK4416 and ITE4416. I see DigiKey doesn't carry any of them; the only 4416 they stock is ON Semi's mmbf4416LT1, but you must buy 3000 at 10 cents each. So, I'd go elsewhere, as others have suggested.

For example, Mouser has ten types of '4416 JFETs in stock or coming, compared to DigiKey's single type with a 3k minimum. I've been going to Mouser a lot lately to find what I need. They even have the original metal-can 2n4416, at 20x higher price than the pn24416, however. If I want the mmbf4416, a sot-23 SMD part, I can buy as few as one part for 15 cents.

Just killfile him. Most everybody else already has, so he has to go after new posters to get his kicks.

So what does the "T" in "JFET" stand for?

--Daniel

"Thingy"

Don't try to confuse Phyllis with facts. She thinks it stands for "Toaster".

"Rich Webb"

........ Phil

"Haude Daniel"

See what happens - NAZI f*****ad.

....... Phil

Try substituting Phyllis for a human sometime. Talk about trying to hammer a round peg into a square hole.

Well... he might use a Junction Field Effect Transistor, If so, it might work :) ;)

You enjoy that feeling?