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Ivan Vegvary <ivanvegvary@gmail.com>: Jan 10 07:38PM -0800 "Peak-to-Peak" meter. For what are (were) they used? Got it for free. Is it simply so I don't have to multiply by 1.414? Be gentle. I'm new at all this and trying to learn. Ivan Vegvary

Jeff Liebermann <jeffl@cruzio.com>: Jan 10 07:56PM -0800 On Sun, 10 Jan 2016 19:38:00 -0800 (PST), Ivan Vegvary >Is it simply so I don't have to multiply by 1.414? >Be gentle. I'm new at all this and trying to learn. >Ivan Vegvary   Like this Senco PP2 ? <http://www.ebay.com/itm/151944955761> <http://www.ebay.com/itm/300846516496> It's not really a "meter". It's a "Peak to Peak Comparison Meter", whatever that means.   What's inside: <http://i.ebayimg.com/images/a/%28KGrHqN,!ikFCd%28btD-8BQ8wKmgb-!~~/s-l1600.jpg> I couldn't find a manual or schematic. I have only some bad guesses as to what it does and how it works. At least you didn't pay any money for it.   -- 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

stratus46@yahoo.com: Jan 10 09:25PM -0800 On Sunday, January 10, 2016 at 7:56:08 PM UTC-8, Jeff Liebermann wrote: > 150 Felker St #D http://www.LearnByDestroying.com > Santa Cruz CA 95060 http://802.11junk.com > Skype: JeffLiebermann AE6KS 831-336-2558   Looks like a fine paperweight.   G²

MJC <gravity@mjcoon.plus.com>: Jan 11 11:03AM In article <434dc6d4-7695-49e7-b453-4c192381d8ba@googlegroups.com>, ivanvegvary@gmail.com says... > Is it simply so I don't have to multiply by 1.414? > Be gentle. I'm new at all this and trying to learn. > Ivan Vegvary   Doesn't "peak to peak" imply a ratio of 2.828 wrt RMS? (So long as we are looking at a sine wave.)   MIke.

JC <Chipbee40_SpamNo@yahoo.com>: Jan 10 01:41PM -0500 On 1/10/2016 12:47 AM, Ivan Vegvary wrote: >> Ivan Vegvary   > Thank you so much for the links. I might have to purchase the manual for the model 125 and hope that it is close enough. > Thanks, Ivan Vegvary   Exact 117 is probably a closer model   http://www.jetecnet.com/others.html

Ivan Vegvary <ivanvegvary@gmail.com>: Jan 10 07:31PM -0800 Wow! Thank you JC. And, it's a reasonable price. What a find. Ivan Vegvary

Jeff Liebermann <jeffl@cruzio.com>: Jan 10 03:02PM -0800 On Tue, 15 Dec 2015 08:49:28 -0800, Jeff Liebermann <jeffl@cruzio.com> wrote:   >I have two of them that run without problems. I also have about 5 >customers that have them. Batteries have been lasting about 5 years >and no lightning bolts or smog problems.   So much for 5 customers without problems. Last week, I checked out the various UPS's at a customers site, and that all of them were APC XS 1300 or XS 1500, all indicating dead batteries. When I installed my sacred pair of known good 12v 9A AGM batteries in one unit, it ran, but refused to recharge the batteries. Same with another set of known good batteries. No error messages on the LCD or lights. I found the same problem in 4 other units and one APC XS 1000. Something is seriously broken in the electronics.   Fixing these UPS's is a financial loser. A set of replacement batteries costs about $43. <http://www.amazon.com/gp/product/B001NJ3H0C> My guess is about 1 hr labor at $75/hr for a total of $118. I can buy a new UPS for that amount. That also doesn't include any replacement parts, pickup, delivery, and runtime testing. A smart person would send them all to the recycler, which is what I suspect everyone else with the same problem probably does. However, I have an aversion to tossing things that can be fixed, so I decided to recharge my karma and perform the money losing repairs.   <http://www.11junk.com/jeffl/pics/repair/APC%20XS-1300/index.html> Once I got it apart, the fix was both easy and obvious. C69 22uf 400 VDC electrolytic was bulging. <http://www.ebay.com/itm/271859006825> The original brand was CapXon which is known for its ability to self destruct after a few years. I replaced the capacitor, and now the batteries are charging. I now have a total of 5 UPS's repaired.   Unfortunately, leaving AGM batteries in a discharged state for extended periods is not a great idea. Out of 14 batteries, only 3 tested marginally good. The rest were dead. I would guess that someone that simply replaced the batteries, didn't notice that they weren't getting recharged, and came back in a few weeks to find that the batteries were ruined, would not be very thrilled.   However, the hapless repairman that actually tried to open the plastic box is in for yet another surprise. It's designed to be difficult or impossible to open. The problem is the snap in front panel: <http://www.11junk.com/jeffl/pics/repair/APC%20XS-1300/slides/XS-1300-04.html> is easily installed, and a major PITA to remove. I had to crack the case (see other photos and look for the red circles for screw locations), partly separate the two halves of the case, and then pry around the edges of the front panel with a stiff putty knife (mega-spudger). I managed not to break or destroy anything during the struggle. The APC XS 1000 was much easier to disassemble.   After I'm done with this customers 6 assorted UPS's, I have 4 more customers with about 10 additional UPS's that will probably need pre-emptive repairs. That should recharge my good karma for at least another month of debauchery and depravity.     -- 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

ben10.vaneeden@gmail.com: Jan 10 12:17PM -0800 On Friday, August 30, 2002 at 1:22:07 PM UTC+2, Shaun Davy wrote: > I know this amp is a beast but would really like to get it running again.   > Any suggestions appreciated   > Shaun   Hi Shaun   Did you manage to get the fault on the power amp? I two have an xr-p740m that keeps blowing fuses. If I switch the unit on without the power amp connected it doesn't blow the fuse , but as the power amp module also include the voltage regulators it might be something further down the power rail. Perhaps a bad cassette motors like Lindsey and/or Aaron mentioned. I have desoldered all the trough hole transistors and did not find any short on any off them. My R7547 test 220ohm without me desoldering it.   This looks like a really awesome amp and would love to get it running again.   If you have any info to spare on the problem or unit I would really appreciate it.   Do you know if this unit would function normally if the tape and CD units are disconnected?   Sorry for my bad English :-(     Regards   Bennie van Eeden

Rheilly Phoull <rheilly@bigslong.com>: Jan 11 06:07AM +0800 > Sorry for my bad English :-(   > Regards   > Bennie van Eeden   Hey Ben, did you check the date on the posting ??

John-Del <ohger1s@aol.com>: Jan 10 02:37PM -0800 > Hi Shaun   > Did you manage to get the fault on the power amp?   If he did, that was 13 years ago.   As far as this amp goes; it's a toilet. Instead of using speaker protection output relays (which are at several cents U.S. each) they use a "blow line" to intentionally destroy the outputs which will open the fuse and save the speakers (maybe, depending on how many fuses were tried and of what current rating).   This is the famous "smoke chimney" that uses the fan to exhaust the smoke out the back of the amp. I still can't believe Pioneer built this bomb.   But anyway, usually changing the outputs *and* the smd emitter resistors will keep it from destroying itself long enough for the check to clear. I did close to a hundred of these years ago without buying the two board halves from Pioneer.

"Ian Field" <gangprobing.alien@ntlworld.com>: Jan 10 08:04PM "amdx" <nojunk@knology.net> wrote in message news:n6tjqk$sh2$1@dont-email.me... > VCR sensor. > I have a Sony remote that needs disassembly and pad cleaning, > this may provide the incentive I needed. :-)   Had a TV in a few years back - the fuse was "tombstoned" in its clip, I did all the safety checks before refitting the fuse and the set worked perfectly.   The handset made me earn my fee. A battery contact was off, it was filthy and the left/right buttons were swapped over. It didn't look like much, but the buttons didn't seat properly and were permanently pressed.

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