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Phil Allison <pallison49@gmail.com>: Dec 25 06:50PM -0800 Bennett Price wrote:   > All of this oddness is due to the fact that the clarinet is basically > cylindrical (not conical like a sax or oboe) and closed at one end > (where the mouthpiece is) unlike a flute.     ** Ah, this explains the clarinet producing acoustic square waves.   A combination of fundamental tone, third, fifth and seventh harmonics.       .... Phil

Tim R <timothy42b@aol.com>: Dec 25 06:58PM -0800 On Friday, December 25, 2015 at 6:16:13 PM UTC-5, jurb...@gmail.com wrote:       > Hmm, OK trumpets and whatever need to be tuned, but what about a trombone ?   Like most brass instruments a trombone comes with a main tuning slide. It is a U shaped piece of tubing right on the top (behind your head when you're playing). You set that for the group you're playing with.   But you also make fine adjustments with the slide that moves. Trombone is "fretless" just like a violin. The slide has an approximately correct position but it always has to be slightly fine tuned for every note, because there are many notes in each position but all have tendencies to be sharp or flat, and notes sometimes have to be adjusted sharp or flat because of the musical context.   I've been playing in various groups for most of the past 50 years, and I've observed a recent tendency to standardize pitch much more. In the 60s a Stroboconn tuning machine cost $2600, which was more than a car back then. Now everybody has a $20 electronic tuner that is just as accurate. While not everybody uses them correctly, the overall effect is that groups have a central pitch much closer to 440 than in the old days.

"Ralph Mowery" <rmowery28146@earthlink.net>: Dec 25 11:33PM -0500 "Tim R" <timothy42b@aol.com> wrote in message news:b2ec33a3-0d5a-459b-b67a-a83f95d81ec8@googlegroups.com... >Now everybody has a $20 electronic tuner that is just as accurate. While >not everybody uses them correctly, the overall effect is that groups have a >central >pitch much closer to 440 than in the old days.   Around 1964 our Jr High had a band program and had one of the Stroboconn machine. I thought it was called a Stroboscope, but hard to remember what it was from over 40 years ago. Maybe the band director called it wrong then.   I do remember the trombones being adjusted like you said. P:iece on the back was moved in or out. I never did know how they could move the slide in and out for the different notes and get them right. I think the band directors favorite note was a B to set everyone to.

John Heath <heathjohn2@gmail.com>: Dec 26 06:22AM -0800 On Friday, December 25, 2015 at 9:58:08 PM UTC-5, Tim R wrote:   > Like most brass instruments a trombone comes with a main tuning slide. It is a U shaped piece of tubing right on the top (behind your head when you're playing). You set that for the group you're playing with.   > But you also make fine adjustments with the slide that moves. Trombone is "fretless" just like a violin. The slide has an approximately correct position but it always has to be slightly fine tuned for every note, because there are many notes in each position but all have tendencies to be sharp or flat, and notes sometimes have to be adjusted sharp or flat because of the musical context.   > I've been playing in various groups for most of the past 50 years, and I've observed a recent tendency to standardize pitch much more. In the 60s a Stroboconn tuning machine cost $2600, which was more than a car back then. Now everybody has a $20 electronic tuner that is just as accurate. While not everybody uses them correctly, the overall effect is that groups have a central pitch much closer to 440 than in the old days.   One more step off subject. Apologies in advance. I remember being in a band in my 20s. Those were great years playing local bars. Unfortunately I did not have the magic so I stayed with electronics. What is that magic? I have played with some greats and it always surprises myself how they can hear a song one time and just run with it while I have to work for it. Ask Sammy Davis Jr what key to play in and he will say whiskey. What is that magic?

Jeroni Paul <JERONI.PAUL@terra.es>: Dec 25 05:23PM -0800 Paul M. Cook wrote: > Security is a thousand little things, all put together.   Instead of hidding the SSID I use an intermediate solution: increase the beacon transmission interval time. This setting is usually found in the Advanced tab of many home routers and sets the time elapsed between SSID broadcasts.   By default it is 100ms, using longer times stops some devices from seeing the network and reduces the chance a pass-by car or walker sees it. It requires some testing to find the longest time that will work with the intended devices. It also reduces electrosmog and intereference with other wifi or analog video senders (a transmission every 100 ms is very annoying but every 5000ms goes unnoticed).   Up to 20000ms (20 seconds) has worked successfully with some laptops - at turn on it requires some wait up to one minute until they see the network, then they work fine as usual and no dropped connections. Some devices will not see the network no matter how long you wait even if you had it set up before. Some devices see the network but drop the connection frequently.   5000ms (5 seconds) works fine with most devices and reduces dropped connections, still a few devices (one laptop and a D-link wifi repeater) do not see the network.   1000ms (1 second) seems the best compromise between compatibility and electrosmog/interference. No problems found with any device.

"Paul M. Cook" <pmcook@gte.net>: Dec 26 01:07AM -0500 On Fri, 25 Dec 2015 23:12:49 +0000, Adrian Caspersz wrote:   > If you don't have much control what he does on the internet, then > perhaps you might feel more secure getting yourself a different ISP.   > That can't cost that much.   I have no idea what that advice is trying to tell me.

Adrian Caspersz <email@here.invalid>: Dec 26 10:51AM On 26/12/15 06:07, Paul M. Cook wrote: >> perhaps you might feel more secure getting yourself a different ISP.   >> That can't cost that much.   > I have no idea what that advice is trying to tell me.   Oh well. Bye.   -- Adrian C

Jeff Liebermann <jeffl@cruzio.com>: Dec 25 07:52PM -0800 On Fri, 25 Dec 2015 20:12:06 -0500, "Ralph Mowery" >involving RF as it paid more at the time and had a good retirement.   >Here is the NABAER paper   >https://drive.google.com/file/d/0B7wJcih38lRATEN5U0pwdzVlV1U/view?usp=sharing   Thanks. I thought it was in place of the license. It looks more like is a certification that is in addition to the license (or maybe instead of the license). At the time, many companies were busy giving tests and issuing diplomas, certificates, cards, plaques, stamps, etc attesting to a person having passed a proficiency exam. In most cases, the certificate holder was required to renew the certification every 5 years, ostensibly because the products and the technology had changed. More accurately, it was a revenue source for the company, but I'll pretend not to notice. Holding an applicable certification also became a job requirement for many computah jobs. I knew people that collected certifications because their employers encouraged the practice. However, the NABER certification was in 1984, well before such certifications became common in the computer industry. As I mentioned, I must have been asleep, and didn't even notice such things until maybe 1993. Then, I didn't bother getting certified for anything.     -- Jeff Liebermann jeffl@cruzio.com 150 Felker St #D http://www.LearnByDestroying.com Santa Cruz CA 95060 http://802.11junk.com Skype: JeffLiebermann AE6KS 831-336-2558

"Ralph Mowery" <rmowery28146@earthlink.net>: Dec 25 11:28PM -0500 "Jeff Liebermann" <jeffl@cruzio.com> wrote in message news:sn2s7b5cu2n2es20ktdir513avthtm4rl0@4ax.com... > mentioned, I must have been asleep, and didn't even notice such things > until maybe 1993. Then, I didn't bother getting certified for > anything.   That is what I got when the First Class Phone was not needed any more and the First and Second Class was changed over to the GROL.   I agree , I think many companies were started up or started handing out some kind of certification just to make money. Where I worked I had to get certified every year for something about radiation. Then came the refregeration and ozone scare, certified to operate a stud gun, operate some man lifting platforms, the Star program, ISO 6000 or was it 9000 , TPM, deversity training, PLC certification (only thing that I got any training on worth anything), don't recall what all else. Retired about the time the six sigma came out with all the stupid belts. I even thought the First Phone was a joke when I took it in 1972. I had studied some on a 2 nd class book and at the time it cost one dollar more to take the First, so I signed up for that and passed everything the first day. Never did see a TV transmitter and would not know what to do if I had.

Phil Allison <pallison49@gmail.com>: Dec 25 07:06PM -0800 John Heath wrote:   > I can see how wire dressing would cause this with high gain of a guitar > amp. However this is Monday night quarterbacking. One does not know it > is wire dressing ,   ** Moving the input signal and output plate wires BACK to where they were originally and having all oscillation stop is enough proof for anyone familiar with tube guitar amps - but apparently not you.   AC supply transformer orientation can be critical in sensitive devices, graphic equalisers and tape machines are good examples - plus CRT based scopes.   In tube amps, AC and output transformers are normally mounted close together with the cores at right angles to prevent direct injection of 50/60 Hz hum.   In case of the OP's JCM600, Marshall elected to mount the two at opposite ends of the chassis, maybe to balance the weight, but doing so can easily lead to instability.     .... Phil

Jeroni Paul <JERONI.PAUL@terra.es>: Dec 25 05:57PM -0800 Jeff Liebermann wrote: > 26 KHz seems a rather odd horizontal frequency. Any hints as to what > equipment is the monitor installed, whether it's NTSC, SECAM, PAL, > TTL, VESA, or HDMI, and what you are trying to accomplish?   Some old Arcade games used EGA monitors running at 25kHz and 60Hz refresh rate to produce 512x384 or 512x768 interlaced. 26kHz fits within the sync limits of these monitors and results in 400 active lines (or 800 interlaced).

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