Prev: Basic Tools for Surface Mount.
Next: Tek TDS420 help?
From: Jan Panteltje on 2 Feb 2010 18:52 On a sunny day (Tue, 02 Feb 2010 12:57:26 -0800) it happened John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in <984hm5d9uh7qfnms2vp332ln3t53lislfi(a)4ax.com>: >On Tue, 2 Feb 2010 15:22:12 -0500, "Paul E. Schoen" ><paul(a)peschoen.com> wrote: > >> >>"Joerg" <invalid(a)invalid.invalid> wrote in message >>news:7soor4Fan9U1(a)mid.individual.net... >>> >>> I'd also throw the BSS84 for P-channel into the hat. It's my jelly-bean >>> part. >> >>I still like the 2N3819 N-channel JFET. I used it in an audio preamp I >>built as a hobby project around 1970, and I used it in an analog >>programmable-gain amplifier I designed around 1985. It's still available >>from Mouser for 10 cents each, and is still made by Fairchild. >>www.fairchildsemi.com/ds/2N%2F2N3819.pdf >> >>Also, it's first on the list of devices in LTSpice! >> >>Paul >> > >If you were stuck on a desert island and could only have one jfet, it >would have to be the BF862. Gm is 45 mS and noise is 0.8 nv/rthz. >There's nothing else like it. > >John I have a lot of BF245, only about 6.5 mS, but very nice to have around. If I was to stock up on MOSFETS I would get more IRLZ34N, low voltage on, high current, avalanche protected.
From: Jim Thompson on 2 Feb 2010 19:06 On Tue, 02 Feb 2010 17:50:35 -0600, krw <krw(a)att.bizzzzzzzzzzz> wrote: >On Tue, 02 Feb 2010 08:58:02 -0700, Jim Thompson ><To-Email-Use-The-Envelope-Icon(a)My-Web-Site.com> wrote: > >>On Tue, 02 Feb 2010 07:54:47 -0800, Joerg <invalid(a)invalid.invalid> >>wrote: >> >>>Okkim Atnarivik wrote: >>>> Joerg <invalid(a)invalid.invalid> wrote in news:7soub2Fc5mU1 >>>>> Hey, Winfield, Mikko just brought another excellent one for the >>>>> jelly-bean list. This one has got to be in there, very low pinch-off >>>>> JFET, steep enough to start an oscillator from less voltage than a fuel >>>> >>>> Yes, but he asked for BJTs... >>>> >>> >>>Ok, then just make it a "bonus delivery" of ideas :-) >>> >>>Oh, Winfield: Please mention in your book the fact that there are >>>newsgroups such as this one if people get stuck, need circuit ideas or >>>want to help youngsters. Most people who buy the book nowadays don't >>>have the foggiest what Usenet is. When I bought my AoE way back when I >>>did not know sci.electronics.design either. >> >>I've been around here so long I started out reading and posting using >>TIN ;-) > >You've been around so long that you witnessed the invention of tin. >;-) Not quite. Wikipedia says tin plating has been done for "hundreds of years". I'm still young (at least of mind): I turn the big 7-0 at the end of this month (actually 17.5 birthdays ;-) The end of March, "N" and I will celebrate the big 5-0 anniversary! ...Jim Thompson -- | James E.Thompson, CTO | mens | | Analog Innovations, Inc. | et | | Analog/Mixed-Signal ASIC's and Discrete Systems | manus | | Phoenix, Arizona 85048 Skype: Contacts Only | | | Voice:(480)460-2350 Fax: Available upon request | Brass Rat | | E-mail Icon at http://www.analog-innovations.com | 1962 | I love to cook with wine. Sometimes I even put it in the food.
From: Fred Bartoli on 2 Feb 2010 19:08 Jan Panteltje a �crit : > On a sunny day (Tue, 02 Feb 2010 12:57:26 -0800) it happened John Larkin > <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in > <984hm5d9uh7qfnms2vp332ln3t53lislfi(a)4ax.com>: > >> On Tue, 2 Feb 2010 15:22:12 -0500, "Paul E. Schoen" >> <paul(a)peschoen.com> wrote: >> >>> "Joerg" <invalid(a)invalid.invalid> wrote in message >>> news:7soor4Fan9U1(a)mid.individual.net... >>>> I'd also throw the BSS84 for P-channel into the hat. It's my jelly-bean >>>> part. >>> I still like the 2N3819 N-channel JFET. I used it in an audio preamp I >>> built as a hobby project around 1970, and I used it in an analog >>> programmable-gain amplifier I designed around 1985. It's still available >> >from Mouser for 10 cents each, and is still made by Fairchild. >>> www.fairchildsemi.com/ds/2N%2F2N3819.pdf >>> >>> Also, it's first on the list of devices in LTSpice! >>> >>> Paul >>> >> If you were stuck on a desert island and could only have one jfet, it >> would have to be the BF862. Gm is 45 mS and noise is 0.8 nv/rthz. >> There's nothing else like it. >> >> John > > I have a lot of BF245, only about 6.5 mS, but very nice to have around. > If I was to stock up on MOSFETS I would get more IRLZ34N, low voltage on, > high current, avalanche protected. On a desert island that would be a nice feature to protect you against tsunamis. -- Thanks, Fred.
From: Tim Williams on 2 Feb 2010 19:19 "Fred Bartoli" <" "> wrote in message news:4b68be94$0$21285$426a74cc(a)news.free.fr... > On a desert island that would be a nice feature to protect you against > tsunamis. You're right, better throw in some IGBTs for the tidal generators! TIm -- Deep Friar: a very philosophical monk. Website: http://webpages.charter.net/dawill/tmoranwms
From: John Larkin on 2 Feb 2010 22:17
On Wed, 03 Feb 2010 01:08:52 +0100, Fred Bartoli <" "> wrote: >Jan Panteltje a �crit : >> On a sunny day (Tue, 02 Feb 2010 12:57:26 -0800) it happened John Larkin >> <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in >> <984hm5d9uh7qfnms2vp332ln3t53lislfi(a)4ax.com>: >> >>> On Tue, 2 Feb 2010 15:22:12 -0500, "Paul E. Schoen" >>> <paul(a)peschoen.com> wrote: >>> >>>> "Joerg" <invalid(a)invalid.invalid> wrote in message >>>> news:7soor4Fan9U1(a)mid.individual.net... >>>>> I'd also throw the BSS84 for P-channel into the hat. It's my jelly-bean >>>>> part. >>>> I still like the 2N3819 N-channel JFET. I used it in an audio preamp I >>>> built as a hobby project around 1970, and I used it in an analog >>>> programmable-gain amplifier I designed around 1985. It's still available >>> >from Mouser for 10 cents each, and is still made by Fairchild. >>>> www.fairchildsemi.com/ds/2N%2F2N3819.pdf >>>> >>>> Also, it's first on the list of devices in LTSpice! >>>> >>>> Paul >>>> >>> If you were stuck on a desert island and could only have one jfet, it >>> would have to be the BF862. Gm is 45 mS and noise is 0.8 nv/rthz. >>> There's nothing else like it. >>> >>> John >> >> I have a lot of BF245, only about 6.5 mS, but very nice to have around. >> If I was to stock up on MOSFETS I would get more IRLZ34N, low voltage on, >> high current, avalanche protected. > >On a desert island that would be a nice feature to protect you against >tsunamis. Yeah, hide behind a grounded gate. John |