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From: Jan Panteltje on 3 Feb 2010 14:52 On a sunny day (Wed, 03 Feb 2010 10:54:23 -0800) it happened John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in <t8hjm59o1au9k7jls4vdh8udti6pni203g(a)4ax.com>: >On Wed, 03 Feb 2010 12:35:56 -0500, Ecnerwal ><MyNameForward(a)ReplaceWithMyVices.Com.invalid> wrote: > >>In article <0ubjm5d9tomlahkcp5llcbu75l9eopl2ut(a)4ax.com>, >> John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >> >>> Your mountains have holes? >>> >>> John >> >>Yes. Really straight holes. This one has a pretty side, and an ugly >>side, and those people on the pretty side are idiots, since large things >>still fill the hole on a regular basis. >> >>http://www.justtheberkshires.com/images/Florida_Hoosac_Tunnel.jpg >>http://newenglandoddities.com/wp-content/uploads/2008/07/hoosac-west-port >>al-north-adams-2008-05-24-21.jpg > >Cool. I like tunnels. > >Here's our equivalent in the Sierras: > >ftp://jjlarkin.lmi.net/CW_Donner_Lake.jpg That is beautiful.
From: John Larkin on 3 Feb 2010 17:13 On Wed, 03 Feb 2010 19:52:31 GMT, Jan Panteltje <pNaonStpealmtje(a)yahoo.com> wrote: >On a sunny day (Wed, 03 Feb 2010 10:54:23 -0800) it happened John Larkin ><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote in ><t8hjm59o1au9k7jls4vdh8udti6pni203g(a)4ax.com>: > >>On Wed, 03 Feb 2010 12:35:56 -0500, Ecnerwal >><MyNameForward(a)ReplaceWithMyVices.Com.invalid> wrote: >> >>>In article <0ubjm5d9tomlahkcp5llcbu75l9eopl2ut(a)4ax.com>, >>> John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >>> >>>> Your mountains have holes? >>>> >>>> John >>> >>>Yes. Really straight holes. This one has a pretty side, and an ugly >>>side, and those people on the pretty side are idiots, since large things >>>still fill the hole on a regular basis. >>> >>>http://www.justtheberkshires.com/images/Florida_Hoosac_Tunnel.jpg >>>http://newenglandoddities.com/wp-content/uploads/2008/07/hoosac-west-port >>>al-north-adams-2008-05-24-21.jpg >> >>Cool. I like tunnels. >> >>Here's our equivalent in the Sierras: >> >>ftp://jjlarkin.lmi.net/CW_Donner_Lake.jpg > >That is beautiful. The road (Donner Pass Road) is part of the old Lincoln Highway, the first auto road that went coast-to-coast. http://en.wikipedia.org/wiki/Lincoln_Highway Damn, Wikipedia knows everything! Lake Tahoe, about 15 miles away, is also beautiful. The surface is at 6200 feet, and it's about 1600 feet deep. John
From: krw on 3 Feb 2010 23:28 On Wed, 03 Feb 2010 07:02:53 -0800, John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >On Wed, 03 Feb 2010 12:06:34 GMT, Jan Panteltje ><pNaonStpealmtje(a)yahoo.com> wrote: > >>On a sunny day (Wed, 03 Feb 2010 01:08:52 +0100) it happened Fred Bartoli <" >>"> wrote in <4b68be94$0$21285$426a74cc(a)news.free.fr>: >> >>>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. >> >>I had a litte avalanche here today. >>been snowing and ice-snow, sort of wet snow, after that. >>Lots of snow on the roof. >>This moring the nearby church bells sounded, and the sound triggered an >>avalanche from the roof! >>Very interesting effect:-) > >As the snow creeps down the roof of our cabin, it curls over the edge >and does this... > >ftp://jjlarkin.lmi.net/Bent_Icycles.jpg > >which I thought was pretty weird. But I grew up in the South, where >there are no icicles, so it may be common. And I'm easily amused. I've never seen it that pronounced. Neat. >Our building codes require flat structures to handle 400 pounds of >snow load per square foot, so roofs tend to be steeply peaked. A few years back many roofs were collapsing in VT after a 3' snowfall on St. Valentines day, another 2' a few weeks later, in addition to the frequent 2-6" storms. There isn't often a melt between Christmas and April, so what falls tends to stay. >Every now and then the whole mess on the roof avalanches off onto the >ground (and any objects nearby.) That can get noisy. Unless the roof is metal, it shouldn't avalanche off. The roof should stay cold such that it melts top down. Most roofing material is rough enough to keep it from sliding.
From: John Larkin on 4 Feb 2010 01:04 On Wed, 03 Feb 2010 22:28:02 -0600, krw <krw(a)att.bizzzzzzzzzzz> wrote: >On Wed, 03 Feb 2010 07:02:53 -0800, John Larkin ><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: > >>On Wed, 03 Feb 2010 12:06:34 GMT, Jan Panteltje >><pNaonStpealmtje(a)yahoo.com> wrote: >> >>>On a sunny day (Wed, 03 Feb 2010 01:08:52 +0100) it happened Fred Bartoli <" >>>"> wrote in <4b68be94$0$21285$426a74cc(a)news.free.fr>: >>> >>>>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. >>> >>>I had a litte avalanche here today. >>>been snowing and ice-snow, sort of wet snow, after that. >>>Lots of snow on the roof. >>>This moring the nearby church bells sounded, and the sound triggered an >>>avalanche from the roof! >>>Very interesting effect:-) >> >>As the snow creeps down the roof of our cabin, it curls over the edge >>and does this... >> >>ftp://jjlarkin.lmi.net/Bent_Icycles.jpg >> >>which I thought was pretty weird. But I grew up in the South, where >>there are no icicles, so it may be common. And I'm easily amused. > >I've never seen it that pronounced. Neat. > >>Our building codes require flat structures to handle 400 pounds of >>snow load per square foot, so roofs tend to be steeply peaked. > >A few years back many roofs were collapsing in VT after a 3' snowfall >on St. Valentines day, another 2' a few weeks later, in addition to >the frequent 2-6" storms. There isn't often a melt between Christmas >and April, so what falls tends to stay. > >>Every now and then the whole mess on the roof avalanches off onto the >>ground (and any objects nearby.) That can get noisy. > >Unless the roof is metal, it shouldn't avalanche off. The roof should >stay cold such that it melts top down. Most roofing material is rough >enough to keep it from sliding. It's metal, and pretty steep, just about 45 degrees. With the amount of snow we get up there, avalanching is a Good Thing. The record for around here is 819 inches of snow in one season. John
From: krw on 4 Feb 2010 18:10
On Wed, 03 Feb 2010 22:04:49 -0800, John Larkin <jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >On Wed, 03 Feb 2010 22:28:02 -0600, krw <krw(a)att.bizzzzzzzzzzz> wrote: > >>On Wed, 03 Feb 2010 07:02:53 -0800, John Larkin >><jjlarkin(a)highNOTlandTHIStechnologyPART.com> wrote: >> >>>On Wed, 03 Feb 2010 12:06:34 GMT, Jan Panteltje >>><pNaonStpealmtje(a)yahoo.com> wrote: >>> >>>>On a sunny day (Wed, 03 Feb 2010 01:08:52 +0100) it happened Fred Bartoli <" >>>>"> wrote in <4b68be94$0$21285$426a74cc(a)news.free.fr>: >>>> >>>>>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. >>>> >>>>I had a litte avalanche here today. >>>>been snowing and ice-snow, sort of wet snow, after that. >>>>Lots of snow on the roof. >>>>This moring the nearby church bells sounded, and the sound triggered an >>>>avalanche from the roof! >>>>Very interesting effect:-) >>> >>>As the snow creeps down the roof of our cabin, it curls over the edge >>>and does this... >>> >>>ftp://jjlarkin.lmi.net/Bent_Icycles.jpg >>> >>>which I thought was pretty weird. But I grew up in the South, where >>>there are no icicles, so it may be common. And I'm easily amused. >> >>I've never seen it that pronounced. Neat. Thinking about those some more, is that the windward side of the house? >>>Our building codes require flat structures to handle 400 pounds of >>>snow load per square foot, so roofs tend to be steeply peaked. >> >>A few years back many roofs were collapsing in VT after a 3' snowfall >>on St. Valentines day, another 2' a few weeks later, in addition to >>the frequent 2-6" storms. There isn't often a melt between Christmas >>and April, so what falls tends to stay. >> >>>Every now and then the whole mess on the roof avalanches off onto the >>>ground (and any objects nearby.) That can get noisy. >> >>Unless the roof is metal, it shouldn't avalanche off. The roof should >>stay cold such that it melts top down. Most roofing material is rough >>enough to keep it from sliding. > >It's metal, and pretty steep, just about 45 degrees. With the amount >of snow we get up there, avalanching is a Good Thing. The record for >around here is 819 inches of snow in one season. Metal is good. Steep is good. Warm is not good. OTOH, 45 degrees (12:12 pitch) isn't all that rare by today's standards. This house has a 15:12 pitch (no way I'm going up there). OTOH, the VT house was 9:12 front and 2:12 on the rear shed dormer. The snow worried me a few times when we were in that house. Not so much in this one. ;-) |