Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 How about putting something " dirty " on it, and see if the noise gets through the filter back to the house wiring? Basically, plug in a compact fluorescent bulb and measure the dirty power on a different outlet. You can also put an AM radio next to the chord to see if the noise level is attenuated. Eli > > I just received a Tripplite Isobar 10 outlet surge to compare with the Furman I already bought. My Entech Meter measured the Furman at a steady 0.3 The Tripplite measures 9.0-9.x and keeps fluctuating. I think this proves that the Furman is superior. Too bad it didn't help that static on my TV when my neighbor uses her treadmill but i think i may try putting the TV coax through it and see what happens. The Tripplite goes back to Amazon. > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 > How about putting something " dirty " on it, > and see if the noise gets through the filter > back to the house wiring? Basically, plug in a > compact fluorescent bulb and measure the dirty > power on a different outlet. You can also put > an AM radio next to the chord to see if the > noise level is attenuated. I did something like this 10 months ago and posted the results. Here they are again: KEY Furman = Furman PST-10D power strip Power Sentry = Power Sentry 6-outlet power strip Blue Circle = Blue Circle Power Line Pillow MkIII (parallel filter) Noise Harvester = PS Audio Noise Harvester (parallel filter) Isobar New = Tripp Lite Isobar new version Isobar Old = Tripp Lite Isobar old version, -75db outlet Brickwall = Brick Wall Surge Suppressor Stetzer = reading on the Stetzer meter Entech = reading on the Entech meter MEASURE NOISE AT WALL OUTLET WHEN THESE DEVICES ARE PLUGGED INTO THE OTHER OUTLET No filter Stetzer=190 Entech=59 Furman Stetzer=130 Entech=23 Power Sentry Stetzer=240 Entech=5 Blue Circle Stetzer= 95 Entech=2 Noise Harvester Stetzer=153 Entech=0.3 Isobar new Stetzer=200 Entech=20 Isobar old Stetzer=180 Entech=66 Brickwall Stetzer=135 Entech=55 FILTER PLUGGED INTO WALL OUTLET, MEASURE NOISE AT FILTER OUTLET (FILTER OUTPUTS) Furman Stetzer= 30 Entech=0.1 Power Sentry Stetzer= 80 Entech=4 Isobar new Stetzer= 40 Entech=3 Isobar old Stetzer= 54 Entech=0.1 Brickwall Stetzer=100 Entech=0.2 VACCUM CLEANER TURNED ON AND PLUGGED INTO FILTER (OR PARALLEL DEVICE USED IN ANOTHER WALL OUTLET), MEASURE NOISE AT OTHER WALL OUTLET No filter Stetzer=1100 Entech=176 Furman Stetzer=370 Entech=20 Power Sentry Stetzer=1000 Entech=44 Blue Circle Stetzer=500 Entech=17 Noise Harvester Stetzer=700 Entech=2.5 Isobar new Stetzer=570 Entech=21 Isobar old Stetzer=1000 Entech=80 Brickwall Stetzer=570 Entech=62 VACUUM CLEANER TURNED ON AND PLUGGED INTO WALL OUTLET, FILTER PLUGGED INTO OTHER WALL OUTLET, MEASURE NOISE AT FILTER OUTLET (FILTER OUTPUTS): No filter Stetzer=1100 Entech=170 Furman Stetzer=400 Entech=0.6 Power Sentry Stetzer=1100 Entech=38 Isobar new Stetzer=600 Entech=5 Isobar old Stetzer=1000 Entech=2 Brickwall Stetzer=600 Entech=1 Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 It seems from those results Furman wins. Too bad you didn't test the famed " Stetzer " filter. Filterconcepts apparently has quality filters with differential and common mode noise reduction. Eli > > > How about putting something " dirty " on it, > > and see if the noise gets through the filter > > back to the house wiring? Basically, plug in a > > compact fluorescent bulb and measure the dirty > > power on a different outlet. You can also put > > an AM radio next to the chord to see if the > > noise level is attenuated. > > I did something like this 10 months ago and posted the results. > Here they are again: > > KEY > Furman = Furman PST-10D power strip > Power Sentry = Power Sentry 6-outlet power strip > Blue Circle = Blue Circle Power Line Pillow MkIII (parallel filter) > Noise Harvester = PS Audio Noise Harvester (parallel filter) > Isobar New = Tripp Lite Isobar new version > Isobar Old = Tripp Lite Isobar old version, -75db outlet > Brickwall = Brick Wall Surge Suppressor > Stetzer = reading on the Stetzer meter > Entech = reading on the Entech meter > > MEASURE NOISE AT WALL OUTLET WHEN THESE DEVICES > ARE PLUGGED INTO THE OTHER OUTLET > > No filter Stetzer=190 Entech=59 > Furman Stetzer=130 Entech=23 > Power Sentry Stetzer=240 Entech=5 > Blue Circle Stetzer= 95 Entech=2 > Noise Harvester Stetzer=153 Entech=0.3 > Isobar new Stetzer=200 Entech=20 > Isobar old Stetzer=180 Entech=66 > Brickwall Stetzer=135 Entech=55 > > FILTER PLUGGED INTO WALL OUTLET, MEASURE NOISE AT > FILTER OUTLET (FILTER OUTPUTS) > > Furman Stetzer= 30 Entech=0.1 > Power Sentry Stetzer= 80 Entech=4 > Isobar new Stetzer= 40 Entech=3 > Isobar old Stetzer= 54 Entech=0.1 > Brickwall Stetzer=100 Entech=0.2 > > VACCUM CLEANER TURNED ON AND PLUGGED INTO FILTER > (OR PARALLEL DEVICE USED IN ANOTHER WALL OUTLET), > MEASURE NOISE AT OTHER WALL OUTLET > > No filter Stetzer=1100 Entech=176 > Furman Stetzer=370 Entech=20 > Power Sentry Stetzer=1000 Entech=44 > Blue Circle Stetzer=500 Entech=17 > Noise Harvester Stetzer=700 Entech=2.5 > Isobar new Stetzer=570 Entech=21 > Isobar old Stetzer=1000 Entech=80 > Brickwall Stetzer=570 Entech=62 > > VACUUM CLEANER TURNED ON AND PLUGGED INTO WALL OUTLET, > FILTER PLUGGED INTO OTHER WALL OUTLET, MEASURE NOISE > AT FILTER OUTLET (FILTER OUTPUTS): > > No filter Stetzer=1100 Entech=170 > Furman Stetzer=400 Entech=0.6 > Power Sentry Stetzer=1100 Entech=38 > Isobar new Stetzer=600 Entech=5 > Isobar old Stetzer=1000 Entech=2 > Brickwall Stetzer=600 Entech=1 > > Marc > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 I don't use fluorescent bulbs, but when everything is on I will see how the next outlet is affected between the 2 surge protectors. My cell sensor went off near the Furman but doesn't react that much to the Tripplite. Interesting > > > > I just received a Tripplite Isobar 10 outlet surge to compare with the Furman I already bought. My Entech Meter measured the Furman at a steady 0.3 The Tripplite measures 9.0-9.x and keeps fluctuating. I think this proves that the Furman is superior. Too bad it didn't help that static on my TV when my neighbor uses her treadmill but i think i may try putting the TV coax through it and see what happens. The Tripplite goes back to Amazon. > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 Thanks for the numbers. If I remember correctly you opted to go with the Furmans, correct? > > > How about putting something " dirty " on it, > > and see if the noise gets through the filter > > back to the house wiring? Basically, plug in a > > compact fluorescent bulb and measure the dirty > > power on a different outlet. You can also put > > an AM radio next to the chord to see if the > > noise level is attenuated. > > I did something like this 10 months ago and posted the results. > Here they are again: > > KEY > Furman = Furman PST-10D power strip > Power Sentry = Power Sentry 6-outlet power strip > Blue Circle = Blue Circle Power Line Pillow MkIII (parallel filter) > Noise Harvester = PS Audio Noise Harvester (parallel filter) > Isobar New = Tripp Lite Isobar new version > Isobar Old = Tripp Lite Isobar old version, -75db outlet > Brickwall = Brick Wall Surge Suppressor > Stetzer = reading on the Stetzer meter > Entech = reading on the Entech meter > > MEASURE NOISE AT WALL OUTLET WHEN THESE DEVICES > ARE PLUGGED INTO THE OTHER OUTLET > > No filter Stetzer=190 Entech=59 > Furman Stetzer=130 Entech=23 > Power Sentry Stetzer=240 Entech=5 > Blue Circle Stetzer= 95 Entech=2 > Noise Harvester Stetzer=153 Entech=0.3 > Isobar new Stetzer=200 Entech=20 > Isobar old Stetzer=180 Entech=66 > Brickwall Stetzer=135 Entech=55 > > FILTER PLUGGED INTO WALL OUTLET, MEASURE NOISE AT > FILTER OUTLET (FILTER OUTPUTS) > > Furman Stetzer= 30 Entech=0.1 > Power Sentry Stetzer= 80 Entech=4 > Isobar new Stetzer= 40 Entech=3 > Isobar old Stetzer= 54 Entech=0.1 > Brickwall Stetzer=100 Entech=0.2 > > VACCUM CLEANER TURNED ON AND PLUGGED INTO FILTER > (OR PARALLEL DEVICE USED IN ANOTHER WALL OUTLET), > MEASURE NOISE AT OTHER WALL OUTLET > > No filter Stetzer=1100 Entech=176 > Furman Stetzer=370 Entech=20 > Power Sentry Stetzer=1000 Entech=44 > Blue Circle Stetzer=500 Entech=17 > Noise Harvester Stetzer=700 Entech=2.5 > Isobar new Stetzer=570 Entech=21 > Isobar old Stetzer=1000 Entech=80 > Brickwall Stetzer=570 Entech=62 > > VACUUM CLEANER TURNED ON AND PLUGGED INTO WALL OUTLET, > FILTER PLUGGED INTO OTHER WALL OUTLET, MEASURE NOISE > AT FILTER OUTLET (FILTER OUTPUTS): > > No filter Stetzer=1100 Entech=170 > Furman Stetzer=400 Entech=0.6 > Power Sentry Stetzer=1100 Entech=38 > Isobar new Stetzer=600 Entech=5 > Isobar old Stetzer=1000 Entech=2 > Brickwall Stetzer=600 Entech=1 > > Marc > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 > Thanks for the numbers. If I remember correctly you opted to go with the > Furmans, correct? Yes, those and the Quantum Products power strips. I actually think the Quantum power strips are the only ones which make me feel better. But the Furman was the winner in the meter-readings. Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 Then I'm keeping the Furman. As for Quantum I kept one of their 3 outlet plugs for the fridge but I hope they switch to a better quality strip because the cheap plastic stunk on the one I got before > > > Thanks for the numbers. If I remember correctly you opted to go with the > > Furmans, correct? > > Yes, those and the Quantum Products power strips. I actually think the > Quantum power strips are the only ones which make me feel > better. But the Furman was the winner in the meter-readings. > Marc > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 15, 2011 Report Share Posted February 15, 2011 > It seems from those results Furman wins. Too bad > you didn't test the famed " Stetzer " filter. Yes, I must have thrown away my Stetzer filter (?). Of course, if I just used one Stetzer filter, someone would point out that I should be using 20 of them, not one. Marc Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 9, 2011 Report Share Posted March 9, 2011 I got the " 7 outlet " power strip yesterday. Have not tried it yet, but it is the same on the outside as a popular ~$26 Belkin power strip (with 8 outlets actually; Quantum gives you one free!) on Amazon. I detected a faint smell coming from the inside... quality seems good (but it is plastic). Some of the screws are replaced with the pre-stripped tamper resistant kind. Some on Amazon claim the lightning protection from the Belkin is not very good. The Belkin claims " up to " 75dB attenuation above 150kHz, which is not that informative. I'm planning to get a regular Belkin too... Bill On Tue, Feb 15, 2011 at 12:46 PM, torch369 <torch369@...> wrote: > > > Then I'm keeping the Furman. As for Quantum I kept one of their 3 outlet > plugs for the fridge but I hope they switch to a better quality strip > because the cheap plastic stunk on the one I got before > > > > > > > > Thanks for the numbers. If I remember correctly you opted to go with > the > > > Furmans, correct? > > > > Yes, those and the Quantum Products power strips. I actually think the > > Quantum power strips are the only ones which make me feel > > better. But the Furman was the winner in the meter-readings. > > Marc > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 9, 2011 Report Share Posted March 9, 2011 Quantum Products seems to be able to use any " stock " power strip and turn it into a " Quantum Power Conditioner " . Which of course brings up the question -- can someone send them their favorite power strip, and then later receive back a " Quantumized " version of it? All of the Quantum Power Conditioners I have (bought many years ago) are based off of Power Sentry models. But my reactions to them are completely different than my reaction to the regular versions sold at the hardware store. Marc On Wed, 9 Mar 2011 15:11:06 -0700, " Bill Bruno " <wbruno@...> said: > I got the " 7 outlet " power strip yesterday. Have not tried it > yet, but it is the same on the outside as a popular ~$26 Belkin > power strip (with 8 outlets actually; Quantum gives you one > free!) on Amazon. I detected > a faint smell coming from the inside... quality seems good > (but it is plastic). Some of the screws are replaced with the > pre-stripped tamper resistant kind. > > Some on Amazon claim the lightning protection from the > Belkin is not very good. The Belkin claims " up to " 75dB > attenuation above 150kHz, which is not that informative. > > I'm planning to get a regular Belkin too... > Bill Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 9, 2011 Report Share Posted March 9, 2011 I've tried a few Belkin power surges which I think were about 40 dB-- in my opinion, it did not help. I replaced it with an old power surge protector after comparing a few old ones to find which has the lowest sound on the AM meter at the lowest frequency setting. > > I got the " 7 outlet " power strip yesterday. Have not tried it > yet, but it is the same on the outside as a popular ~$26 Belkin > power strip (with 8 outlets actually; Quantum gives you one > free!) on Amazon. I detected > a faint smell coming from the inside... quality seems good > (but it is plastic). Some of the screws are replaced with the > pre-stripped tamper resistant kind. > > Some on Amazon claim the lightning protection from the > Belkin is not very good. The Belkin claims " up to " 75dB > attenuation above 150kHz, which is not that informative. > > I'm planning to get a regular Belkin too... > Bill Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 9, 2011 Report Share Posted March 9, 2011 Hey, does anyone happen to know if you can change out the cord on a surge protector with the mu-chord *(low emf cable)? Lizzie From: emraware@... Date: Thu, 10 Mar 2011 01:35:37 +0000 Subject: Re: Furman vs. Tripplite I've tried a few Belkin power surges which I think were about 40 dB-- in my opinion, it did not help. I replaced it with an old power surge protector after comparing a few old ones to find which has the lowest sound on the AM meter at the lowest frequency setting. > > I got the " 7 outlet " power strip yesterday. Have not tried it > yet, but it is the same on the outside as a popular ~$26 Belkin > power strip (with 8 outlets actually; Quantum gives you one > free!) on Amazon. I detected > a faint smell coming from the inside... quality seems good > (but it is plastic). Some of the screws are replaced with the > pre-stripped tamper resistant kind. > > Some on Amazon claim the lightning protection from the > Belkin is not very good. The Belkin claims " up to " 75dB > attenuation above 150kHz, which is not that informative. > > I'm planning to get a regular Belkin too... > Bill Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 10, 2011 Report Share Posted March 10, 2011 Probably not worth it unless for some reason the cord has to be close to your body. If all the wiring in your house and to computer were shielded/twisted then it might make sense. For stereophiles they make mains cords which have a ferrite layer. But in most cases the computer is the problem, not the cords (but the cords do radiate too). On Wed, Mar 9, 2011 at 7:38 PM, thode <lizt777@...> wrote: > > > > Hey, does anyone happen to know if you can change out the cord on a surge > protector with the mu-chord *(low emf cable)? > Lizzie > > > > From: emraware@... > Date: Thu, 10 Mar 2011 01:35:37 +0000 > Subject: Re: Furman vs. Tripplite > > > I've tried a few Belkin power surges which I think were about 40 dB-- in my > opinion, it did not help. I replaced it with an old power surge protector > after comparing a few old ones to find which has the lowest sound on the AM > meter at the lowest frequency setting. > > > > > > I got the " 7 outlet " power strip yesterday. Have not tried it > > yet, but it is the same on the outside as a popular ~$26 Belkin > > power strip (with 8 outlets actually; Quantum gives you one > > free!) on Amazon. I detected > > a faint smell coming from the inside... quality seems good > > (but it is plastic). Some of the screws are replaced with the > > pre-stripped tamper resistant kind. > > > > Some on Amazon claim the lightning protection from the > > Belkin is not very good. The Belkin claims " up to " 75dB > > attenuation above 150kHz, which is not that informative. > > > > I'm planning to get a regular Belkin too... > > Bill > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 10, 2011 Report Share Posted March 10, 2011 Never been impressed with Belkin. For the less expensive strips I like the APC Pro 7 outlet the best (less than $20 on Amazon) > > > > > > > Thanks for the numbers. If I remember correctly you opted to go with > > the > > > > Furmans, correct? > > > > > > Yes, those and the Quantum Products power strips. I actually think the > > > Quantum power strips are the only ones which make me feel > > > better. But the Furman was the winner in the meter-readings. > > > Marc > > > > > > > > > > > > Quote Link to comment Share on other sites More sharing options...
Guest guest Posted March 11, 2011 Report Share Posted March 11, 2011 Hi Bill-are you a suffere of ES as well? Do you happen to know of any support groups that one could reach by phone? If so if you could let me know...also are you homebound? From: Marc <marc@...> Subject: Re: Re: Furman vs. Tripplite Date: Wednesday, March 9, 2011, 5:21 PM Â Quantum Products seems to be able to use any " stock " power strip and turn it into a " Quantum Power Conditioner " . Which of course brings up the question -- can someone send them their favorite power strip, and then later receive back a " Quantumized " version of it? All of the Quantum Power Conditioners I have (bought many years ago) are based off of Power Sentry models. But my reactions to them are completely different than my reaction to the regular versions sold at the hardware store. Marc On Wed, 9 Mar 2011 15:11:06 -0700, " Bill Bruno " <wbruno@...> said: > I got the " 7 outlet " power strip yesterday. Have not tried it > yet, but it is the same on the outside as a popular ~$26 Belkin > power strip (with 8 outlets actually; Quantum gives you one > free!) on Amazon. I detected > a faint smell coming from the inside... quality seems good > (but it is plastic). Some of the screws are replaced with the > pre-stripped tamper resistant kind. > > Some on Amazon claim the lightning protection from the > Belkin is not very good. The Belkin claims " up to " 75dB > attenuation above 150kHz, which is not that informative. > > I'm planning to get a regular Belkin too... > Bill Quote Link to comment Share on other sites More sharing options...
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