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makrisj@gmail.com: Apr 21 01:53AM -0700 I have seen the following problems occuring on StagePas 300 :   >People change cables w. "standard issue 10m cables, 6,3mm Jack ends" because they need longer cables. This won't ever work; Most industry standard cables having 6.3mm jacks are meant for guitars and other relevant instruments,Conductors inside are thin and coaxial having enormous capacitance and very large resistance.   You need to order your technician or build yourself a pair of REAL Loudspeaker (twin-lead and sufficient thickness for 150W power handling) cables having mono 6,3mm jacks end to end. You won't burn your amp that way.   also -   I have noticed a problem w. my set that showed after 15 mins of operation the following problem:   Sound cut off, replaced with low frequency hum (thus amplifier is still active), Limiter led (red on bar graph) stuck ON, Turning it off and after a few minutes back on solves the problem.   That problem was traced down to an 7915 voltage stabilizer on the main preamp/psu board, having an output of -8V instead of -15 on normal operation and after 15 minutes that voltage fell to 0 volts. Replacing the 7915 with another fixes the problem (solid -15V on output). My Stagepas 300 has an 7915 with plastic casing (too large heat resistanse to heatsink, I guess, and a semiconductor fatigue resulted to that problem). It looks that using a metallic 7915 is possible as the heatsink is electrically isolated from the rest of the circuit on my revision, if in doubt use some mica - plastic ring isolator there.   Cheers.

N_Cook <diverse@tcp.co.uk>: Apr 21 10:39AM +0100 > Sound cut off, replaced with low frequency hum (thus amplifier is still active), Limiter led (red on bar graph) stuck ON, Turning it off and after a few minutes back on solves the problem.   > That problem was traced down to an 7915 voltage stabilizer on the main preamp/psu board, having an output of -8V instead of -15 on normal operation and after 15 minutes that voltage fell to 0 volts. Replacing the 7915 with another fixes the problem (solid -15V on output). My Stagepas 300 has an 7915 with plastic casing (too large heat resistanse to heatsink, I guess, and a semiconductor fatigue resulted to that problem). It looks that using a metallic 7915 is possible as the heatsink is electrically isolated from the rest of the circuit on my revision, if in doubt use some mica - plastic ring isolator there.   > Cheers.   The main speaker lead problem is one jack has to be reverse "polarised", so must be insulated as any stray metal ,eg drummer's snares , will short an amp to the nice shinning metal handle , conveniently placed next to the output sockets. One amp is invertyed relative to the other, to save on volume of rail caps required on peak demands

makrisj@gmail.com: Apr 21 02:04AM -0700 I have seen the following problems occuring on StagePas 300 :   >People change cables w. "standard issue 10m cables, 6,3mm Jack ends" because they need longer cables. This won't ever work; Most industry standard cables having 6.3mm jacks are meant for guitars and other relevant instruments,Conductors inside are thin and coaxial having enormous capacitance and very large resistance.   You need to order your technician or build yourself a pair of REAL Loudspeaker (twin-lead and sufficient thickness for 150W power handling) cables having mono 6,3mm jacks end to end. You won't burn your amp that way.   also -   I have noticed a problem w. my set that showed after 15 mins of operation the following problem:   Sound cut off, replaced with low frequency hum (thus amplifier is still active), Limiter led (red on bar graph) stuck ON, Turning it off and after a few minutes back on solves the problem.   That problem was traced down to an 7915 voltage stabilizer on the main preamp/psu board, having an output of -8V instead of -15 on normal operation and after 15 minutes that voltage fell to 0 volts. Replacing the 7915 with another fixes the problem (solid -15V on output). My Stagepas 300 has an 7915 with plastic casing (too large heat resistanse to heatsink, I guess, and a semiconductor fatigue resulted to that problem). It looks that using a metallic 7915 is possible as the heatsink is electrically isolated from the rest of the circuit on my revision, if in doubt use some mica - plastic ring isolator there.   Cheers.

Robert Roland <fake@ddress.no>: Apr 20 08:37PM +0200 >Write only memory is rare too   Not at all, actually. Just buy a cheap USB memory stick from Ebay. Fill it up with data and then try to read it back. You will notice that most of its rated capacity is write-only. -- RoRo

Jim Whitby <mr.spock@spockmail.net>: Apr 20 08:14PM On Tue, 19 Apr 2016 21:13:02 -0700, Jeff Liebermann wrote:   > specify a WOM in a design: > <http://www.sigwom.com/?page_id=57> > <http://ba.internet.narkive.com/Y3r0WXMC/ot-signetics-wom-hey-jeff- liebermann>   Seems to be some smart people here. I need to learn how to empty the /dev/ null device.   I have lots of scripts that that write to it and I suspect it needs emptied.   Any help?

"Ian Field" <gangprobing.alien@ntlworld.com>: Apr 20 09:17PM +0100 "John Robertson" <spam@flippers.com> wrote in message news:7JqdnfLz67GBZIvKnZ2dnUU7-V_NnZ2d@giganews.com... >> Eric   > WOM is not that rare - the 25120 was designed by Signetics engineer John G > 'Jack' Curtis back in the early 70s and included in their catalog:   Practically any TTL or CMOS chip except flip-flops are WOMs.

"Ian Field" <gangprobing.alien@ntlworld.com>: Apr 20 09:23PM +0100 "Jim Whitby" <mr.spock@spockmail.net> wrote in message news:nf8nv8$oca$1@dont-email.me... > null device.   > I have lots of scripts that that write to it and I suspect it needs > emptied.   I used to have a job clearing the dead cowboys out of TV sets.

"Ian Field" <gangprobing.alien@ntlworld.com>: Apr 20 09:21PM +0100 "Heisenberg" <Barry@saymyname.com> wrote in message news:78vdhbl83itqvignoa4g3v12ud90vc062r@4ax.com...   >>OK, fairly nice set of leads.   >>THEY CAME IN AN ANTI STATIC BAG !   > The bag worked didn't it?   Some types of anti static bag defeat the security tag detectors in shop doorways.   The motivation behind making them so readily available is anyone's guess.

Heisenberg <Barry@saymyname.com>: Apr 21 06:35AM +1000 On Wed, 20 Apr 2016 03:56:16 -0700 (PDT), thekmanrocks@gmail.com wrote:   >no status on the screen, no sounds from >the CD/DVD disc DRIVE, eject - blank label. >Never bothered with it again.   I only tried it once and the result was not worthwhile.   =-=- "Humans will have advanced a long, long way when religious belief has a cozy little classification in the DSM*." David Melville (*Diagnostic and Statistical Manual of Mental Disorders)

Ralph Mowery <rmowery28146@earthlink.net>: Apr 20 05:52PM -0400 In article <vwRRy.1057942$jz.735340@fx41.am4>, gangprobing.alien@ntlworld.com says...   > Some types of anti static bag defeat the security tag detectors in shop > doorways.   > The motivation behind making them so readily available is anyone's guess.     Yesterday I had to go through a metal detector to get into the court house. Even had to remove my belt so the buckle would not set it off.   Got me to thinking that iron and steel effect radio tuned circuits one way and brass and maybe some other materials affect it the other way.   Could someone have say a knife with a steel blade and an matching amount of brass go through the detector with out setting it off ?

"Gareth Magennis" <soundserviceleeds@outlook.com>: Apr 21 12:08AM +0100 wrote in message news:732376fa-68f9-4def-bab8-1757f65bbee6@googlegroups.com...   Got in a pack of new clip leads. I can do alot of things with clip leads. They are a bench staple like the ends off of components, paper clips, various glues and potions.   OK, fairly nice set of leads.   THEY CAME IN AN ANTI STATIC BAG !   I want to call that company and ask if they have any DVD rewinders in stock.             Many things I buy from Farnell now comes in anti static bags, regardless of the vulnerability of such goods to static.   I suspect the cost of this packaging is less than the cost of the litigation of not providing goods in this packaging, and then having to deal with spurious/bogus claims of static damage.     Gareth.

Heisenberg <Barry@saymyname.com>: Apr 21 09:15AM +1000 On Thu, 21 Apr 2016 00:08:32 +0100, "Gareth Magennis"   >Got in a pack of new clip leads. I can do alot of things with clip leads. >They are a bench staple like the ends off of components, paper clips, >various glues and potions.   By alot do you mean not a lot the way atheist means not a theist.   >Gareth.   =-=- "Humans will have advanced a long, long way when religious belief has a cozy little classification in the DSM*." David Melville (*Diagnostic and Statistical Manual of Mental Disorders)

Sjouke Burry <burrynulnulfour@ppllaanneett.nnll>: Apr 21 02:05AM +0200 On 20.04.16 23:52, Ralph Mowery wrote: > way and brass and maybe some other materials affect it the other way.   > Could someone have say a knife with a steel blade and an matching amount > of brass go through the detector with out setting it off ?   By all means try it, we are all in for a belly laugh.

"Michael A. Terrell" <mike.terrell@earthlink.net>: Apr 20 09:44PM -0400 > > I want to call that company and ask if they have any DVD rewinders in stock.   > I'm forever stepping on the ones that fall off the bench unnoticed, and they flatten almost completely (and I'm not overweight). Years ago, clip leads were heavy stamped steel or copper and much more durable. If you ever run across a source for these let me know.   > How fast is the DVD rewinder?     Here are 100 of the small alligator clips with red insulators for $13. You can repair the damaged ones, or make your own.   http://www.ebay.com/itm/321175159335   Disposable-Red-Plastic-Covered-35mm-Metal-Alligator-Clips-100-Pcs-/     They have others at reasonable prices, as well.   <http://stores.ebay.com/22newcentury/_i.html?_nkw=100+alligator+clip&submit=Search&LH_TitleDesc=1&_sid=340637155>   --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

Bill Martin <wwm@wwmartin.net>: Apr 20 07:12PM -0700 On 04/20/2016 01:14 PM, Jim Whitby wrote:   > I have lots of scripts that that write to it and I suspect it needs > emptied.   > Any help?   mv /dev/null /dev/null ... that should do it!

Jeff Liebermann <jeffl@cruzio.com>: Apr 20 07:39PM -0700 On Wed, 20 Apr 2016 20:14:33 -0000 (UTC), Jim Whitby   >I have lots of scripts that that write to it and I suspect it needs >emptied.   >Any help?   Sure. Merely change /dev/null from a device node to an ordinary file with 666 permissions. The file will grow and grow until your disk fills up. Overflow indicates that it's time to clean out the accumulated junk with a simple: > /dev/null and start over. No need to have root permission, anyone can do it.   With this method, you have the satisfaction of knowing that /dev/null is working, not having a dangerous black hole in the middle of your system, and giving the NSA a chance to look at what you are trying to hide in /dev/null. If you get tired of clearing the /dev/null file, you can build a FIFO buffer (i.e. named pipe) where /dev/null is maintained at a fixed size, and new junk tossed into /dev/null will push old junk out the other end of the pipe. I'm not a very good programmist, but I'm sure it can be done by someone more evil and devious than me.   -- 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

Jeff Liebermann <jeffl@cruzio.com>: Apr 20 08:10PM -0700 On Wed, 20 Apr 2016 21:44:06 -0400, "Michael A. Terrell" > Here are 100 of the small alligator clips with red insulators for >$13. You can repair the damaged ones, or make your own.   Alligator and crocodile clips are useless in todays miniature electronics. The best I can do are "wire hook" ends like these: <http://stores.ebay.com/22newcentury/_i.html?_nkw=wire+hooks>   -- 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

jurb6006@gmail.com: Apr 20 11:49PM -0700

MJC <gravity@mjcoon.plus.com>: Apr 21 09:15AM +0100 In article <MPG.3181c4098863407b98968e@news.east.earthlink.net>, rmowery28146@earthlink.net says... > way and brass and maybe some other materials affect it the other way.   > Could someone have say a knife with a steel blade and an matching amount > of brass go through the detector with out setting it off ?   When you write "affect"/"effect" I take it you mean altering the resonance. It would be foolish to measure only resonance without also measuring Q, which would certainly be altered by metals.   Mike.

MJC <gravity@mjcoon.plus.com>: Apr 21 09:24AM +0100 In article <6rgghb9u82qokmqp0q34834eeigvdk752b@4ax.com>, jeffl@cruzio.com says...   > Alligator and crocodile clips are useless in todays miniature > electronics. The best I can do are "wire hook" ends like these: > <http://stores.ebay.com/22newcentury/_i.html?_nkw=wire+hooks>   Perhaps someone should invent caiman clips. Ideally they would be sold duty-free (=Cayman; geddit?).   Mike.

Heisenberg <Barry@saymyname.com>: Apr 21 06:25PM +1000 On Thu, 21 Apr 2016 09:15:55 +0100, MJC <gravity@mjcoon.plus.com> wrote:     >When you write "affect"/"effect" I take it you mean altering the >resonance. It would be foolish to measure only resonance without also >measuring Q, which would certainly be altered by metals.   To effect radio tuned circuits is to cause them to exist.   >Mike.   =-=- "Humans will have advanced a long, long way when religious belief has a cozy little classification in the DSM*." David Melville (*Diagnostic and Statistical Manual of Mental Disorders)

Heisenberg <Barry@saymyname.com>: Apr 21 06:31PM +1000 On Thu, 21 Apr 2016 09:24:15 +0100, MJC <gravity@mjcoon.plus.com> wrote:   >> <http://stores.ebay.com/22newcentury/_i.html?_nkw=wire+hooks>   >Perhaps someone should invent caiman clips. Ideally they would be sold >duty-free (=Cayman; geddit?).   In Telstra we used EZed hooks.     >Mike.   =-=- "Humans will have advanced a long, long way when religious belief has a cozy little classification in the DSM*." David Melville (*Diagnostic and Statistical Manual of Mental Disorders)

"Ian Field" <gangprobing.alien@ntlworld.com>: Apr 20 07:46PM +0100 "Jeff Liebermann" <jeffl@cruzio.com> wrote in message news:jhcdhbtlsjdisqobnqnb5cv05g7shu13q0@4ax.com... >>USB >>subsystem with it!   > Any particular Logitech model number mouse?   Yes - its in the subject line.

"Ian Field" <gangprobing.alien@ntlworld.com>: Apr 20 08:00PM +0100 <avagadro7@gmail.com> wrote in message news:541d56f2-629e-49fe-a1f8-d613ec7295fb@googlegroups.com... >> got the Logitech which was OK - till this happened.   >> Thanks for any help.   > push hole in bottom rear mouse restores to pre-Logictech   Apparently I may have jumped to conclusions.   The BIOS setup seems to have a ready supply of nasty surprises. For one thing it forgets which drive to boot from at the slightest provocation - I already tried a replacement battery, then another in case I got a dud.   Something else flipped at random so it wouldn't boot, so I hit F6 for restore optimum defaults and then made sure the boot priority was right - it booted, and the USB subsystem was back. Now I know I restored defaults previously and it didn't get the USB back then.   This also wipes out the excuse for occasional video artifacts. This board is probably in its death-throes.   The board is an MSI 945GZM and has a normal looking CPU cooler - a spare MSI board I have is a 945P, but it has a huge cooler that overhangs the board and won't fit a case with drive bays. Any idea what are the chances of the Intel 945GZM cooler being OK on the 945P?

N_Cook <diverse@tcp.co.uk>: Apr 20 07:28PM +0100 the full schematics including the G-Class PA and digital board is on http://www.electronica-pt.com/esquema/func-download/28125/chk,15bdb4566c52addcca711c4c5cb674fe/no_html,1/

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