jea48
Responses from jea48
| DC Offset Blocker/Killer - where to buy in the USA almarg8,581 posts01-15-2019 6:12pmIf Al is still following this thread I am sure he will have a better technical answer. Not necessarily, Jim :-)Your finding that having the hairdryer plugged into the outlet where the measurement was taken result... | |
| DC Offset Blocker/Killer - where to buy in the USA jea482,863 posts01-15-2019 12:14pm One other thing...... I will have to go back this afternoon, maybe tomorrow morning, and Check for the Line, Leg, (in the electrical panel) that each of the branch circuits are fed from. (For tests 2, 3, and 4)... | |
| DC Offset Blocker/Killer - where to buy in the USA Here are the DC offset measurements using a low pass filter. (DMM probes across capacitor leads)I used a 1875 watt hair dryer to create the DC offset on the AC mains. Test # 1Dedicated Audio room. Low pass filter plugged into dedicated audio outle... | |
| Are ferrites effective for cabling? wisciman99 OP65 posts01-14-2019 10:16am I have a very minute amount of hiss coming from the speakers (I have to put my ear almost literally on the speaker grills to hear it)The hiss you are hearing is probably just the electronic components ins... | |
| DC Offset Blocker/Killer - where to buy in the USA @ tomiiv30 OPI decided to deleted my previous post because I didn’t think it was right for me to instruct/dictate how the electrician, you hired, should go about trouble shooting for possible problems on the electrical service and or wiring of yo... | |
| DC Offset Blocker/Killer - where to buy in the USA Thanks Al.Jim. | |
| DC Offset Blocker/Killer - where to buy in the USA Al, (almarg)Thanks! 10 to 15 seconds..... I would have missed that for sure. What do you think about using a 22uF value for the capacitor? I chose the 22uF cap because that is what Eva (DIY member) said to use in her post. Elliott Sound Products r... | |
| DC Offset Blocker/Killer - where to buy in the USA @ tomiiv30 OP and @ gdnrbob I ordered the resistor and capacitor over the internet yesterday to build the simple low-pass filter. Hopefully I will have them in about a week. 100K 1 watt resistorhttps://www.ebay.com/itm/5-pack-1-watt-5-carbon-film... | |
| DC Offset Blocker/Killer - where to buy in the USA gdnrbob2,190 posts01-07-2019 1:21pm@jea48 ,Would you recommend getting a DC blocker for every system?I know not all lines have DC, but just as a precaution?Bob No, I wouldn’t. There is not any need for a blocker unless you have DC offset on the ... | |
| DC Offset Blocker/Killer - where to buy in the USA https://www.diyaudio.com/forums/solid-state/2080-dc-filter-6.html#post33181522nd February 2004, 08:09 PM #57 Eva diyAudio Member ... | |
| DC Offset Blocker/Killer - where to buy in the USA Food for thought.Quote from an Audio Circle audio forum thread about DC offset on the AC mains. HAL Industry Contributor Posts:... | |
| DC Offset Blocker/Killer - where to buy in the USA erik_squires4,643 posts01-06-2019 11:54amAgreed. If you measure that little, you need to take the amp back and prove it there. Best,E erik, keep this just between the two of us. Chuck is just plain ignorant when it comes to how to measure for DC... | |
| DC Offset Blocker/Killer - where to buy in the USA tomiiv30 OP21 posts01-05-2019 12:47pmAnd this is what I get from the dealer:"Ron from McIntosh says he might hear of this buzzing issue 5 times a year. It is an amp that is 14,000 watts so it is sensitive to DC being present in the lines. He said... | |
| DC Offset Blocker/Killer - where to buy in the USA tomiiv30 OP17 posts01-04-2019 9:41pmAlso I have measured for DC offset in my AC line the the result was 0.9mV, which is not enough to cause the transformer to buzz How did you measure for it? The correct way. Re: Not trying to start a flame but... | |
| How much are these tubes worth? noromance1,619 posts01-04-2019 4:16pmDon’t smudge the paint on the tubes! +1@ baseben9 Don’t even attempt to wipe them off. Keep your oily fingers off the white labeling.Their value? You need to have them tested.. |