JFET junkbox recommendations?

Those are small-die low-capacitance types, are you interested in low-noise audio types? And, no SMD types?

--
 Thanks,
    - Win

No SMDs please, just to-92 or other thru-hole types. I suppose some audio types would be good to have on hand too, anything reasonably cheap (under $1). I've been playing with RF lately (oscillators, mixers).

Theres not a very wide range of ordinary jfets, they all seem to be pretty much similar. any cheap one would probably do just as well in most circuits.

Colin =^.^=

J310 comes to mind. IIRC $0.14 if you buy 25 at Mouser. Even if you buy only one it's just a few cents more. Look at the datasheet to see if it fits the bill.

--
Regards, Joerg

http://www.analogconsultants.com

"Anthony Fremont"

"Anthony Fremont = Psycho CUNT from Hell "

The most asinine, most ASD FUCKED pile of sub human

YANK SHIT on all usenet !!!!!!!!!!!!

** Nope .....

Satan would be soo jealous of losing your undivided attention.

Sucking his tiny, cold dick is your full time occupation.

** Shame about all the UTTERLY ASININE FUCKWIT assumptions

brain dead, ASD f***ed shitheads who post on SEB make !!!!!!!!

Oh - now I see my tiny oversight .... all those brain dead scumbags

must be your six toed, pointy headed, dribbling, farting, puking relatives.

Yet to come down from the trees.

Still hanging by their tails & eating their own droppings.

Just like YOU !!!!!

You MOTHER FUCKING ASSHOLE

....... Phil

Thanks. Is there any reason that on-semi parts always cost way more?

Philth Allison wrote absolutely nothing pertaining to electronics:

Piss off phil if you don't have anything technical to say. OTOH, if you have something useful to offer, I'm all ears.

Not that I know of. With logic chips ON is sometimes the better deal. But you can't really go wrong with transistors from any brand as long as it is a mainstream manufacturer and you get them from a reputable source.

My favorite used to be the BF245 but it seems to have fallen out of favor with several sources, IOW they have them listed but often there is no stock. I wish there was some kind of cookie I could set to coax a vendor's search engine to show only what's in stock.

--
Regards, Joerg

http://www.analogconsultants.com

aha bf245 yes I had a huge bag of those from one of those places in magazines ofering bags of 100 transistors of this or that type for cheap.

managed to select quite a few matched pairs out of them, for some weird multi channel thing requiring hi impedance diff inputs.

it surprising how little the specification of common jfets differ compared to any other transistor. typically :- 25v, 5-25ma, 2pf cds, 0.5pf cgd.

my junkbox currently contains a bag of 50 j310 wich I got from ebay along with some other more exotic microwave phemt type jfets wich are quite amasing.

I dont usually pay much attention to supplier unless I happen to figure out one manafacturer has particularly good specs for a certain device type and go direct to their website.

Farnell website realy realy annoys me sometimes it lists stuff wich it is discontinued never mind just out of stock and when ive been in a real hurry and maybe its late at night too ive inadvertently ordered stuff wich is discontinued.

Despite that farnell has the best parametric search engine accross brands.

Colin =^.^=

I have a bag of 2N4392s for 25 cents each. I can mail you 10 for 2 bucks.

-Bill

Not on topic but watch how you munge your email address. Unless snipped-for-privacy@nowhere.com is a valid address you have permission to use, choose a domain that isn't valid. Addresses like that are harvested and sold to spammers who then fill up the dead letter box of the domain administrator or whoever is in charge of it.

Just a heads up since I am a domain admin and get tons of spam in our dead letter spool.

--
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COOSN-266-06-25794

redirects to here:

"example.com", "example.net", and "example.org" are three URLS that are guaranteed to never have a web server:

Cheers! Rich

JFETs have an enormous production spread, Vgs(off) and Idss being the more important ones. We used to buy 2N3819s by the bucketload and select out for the various apps.... high Idss for switches, moderate Vgs at 1mA for linear/matched apps, large Vgs(off) (and lower Idss) for voltage controlled resistors.

--
Tony Williams.

2N4416's come in a real TO-72 can and will be way more expensive than a comparable plastic package.

In TO-92's, 2N5457, 2N5458, J310 are already very similar.

In terms of MOSFET's, a CD4007 has three NMOS and three PMOS in a handy 14-pin package :-).

Tim.

Kewl - Last year I went to the shop for some BC547/BC557 for some tinkering; I came home with two bags of 1000 because the 2x 1000 piece *lot* were cheaper than the

2x 25 pieces I needed. Oh Well. ;-)

Now I would like the same deal in ZETEX E-Line ...