jea48
Responses from jea48
| How Much DC is OK on a Power Line? It is my understanding you cannot measure DC on the AC mains just by connecting your digital meter, set on DC voltage, across the mains.Not trying to start a flame buthttp://www.diyaudio.com/forums/solid-state/2080-dc-filter.htmlEva. | |
| My "ah-ha" moment with NOS tubes... You might want to try a Amperex USA made white label PQ 6922.Another great tube is early 60s Siemens CCa. | |
| Help with hum It is independent of volume control and completely stops when the preamp is disconnected.Just a guess but I would bet the ground loop is caused by one of the amps. When you have both amps connected to the preamp the ground loop circuit is complete... | |
| What exactly is a 20 amp dedicated line? .... is the NEC the National Electrical Code? Yes.Second, if a multi wire branch circuit is set up in the manner I described above, please explain how a multi pole branch circuit breaker works.The multi pole breaker has the function of controlling... | |
| What exactly is a 20 amp dedicated line? Bifwynne,Yes, it is called a multi wire branch circuit. (Two 120V separate circuits.) Not two dedicated circuits....Not so good for audio equipment that is connected together by ics though.In 2008 NEC required that multi wire branch circuits must ... | |
| What exactly is a 20 amp dedicated line? What exactly is a 20 amp dedicated line?A line that is dedicated for a specific purpose.A 120Vac 20 amp dedicated branch circuit consists of,(1) Equipment grounding conductor(1) Neutral conductor(1) Hot conductor.A true dedicated branch circuit do... | |
| Health Effects of Acoustic Revive RR-77? Jfz,Check the archives on AA, Tweakers' Asylum.>http://www.audioasylum.com/audio/tweaks/messages/15/153745.html | |
| Health Effects of Acoustic Revive RR-77? Jfz,Here are a few links..... http://www.schumannresonator.com/>http://www.google.com/#sclient=psy&hl=en&rlz=1R2GGLL_enUS413&q=Schumann+Resonator&rlz=1R2GGLL_enUS413&aq=0&aqi=g1g-v3g-j1&aql=&oq=&pbx=1&bav... | |
| Reading threads and posts when selling and buying Reading threads and posts when selling and buying In addition to feedback, do you read initiated threads and posts by the person you consider dealing with? Sure would and have.... How a person responds to others can say a lot about a person. | |
| Help Diagnose Tube Preamp Problem Both channels are affected. Skf3636,Both channels?...... Have a feeling it is something in the power supply. Could be a loose connection. Maybe a cold solder joint. | |
| Help Diagnose Tube Preamp Problem Skf3636,Both channels or only in one? Could be a dirty and or corroded tube socket/s or tube pins.Quick method of cleaning is to unplug and reinsert tube/s in socket several time to clean the pins and socket contacts.... | |
| Power line question Actusreus,Thanks for the additional information....Jim | |
| Power line question It appears the lights in the apartment (judging from the list, this includes the power outlets), have a circuit with two separate breakers, each stating 15 on them. Does this mean there are actually two circuits of 15 amps each?03-07-11: Actusreu... | |
| Power line question Actusreus,Easy as PIE....P = I x Ep = power, watts, Va.I = current, amps.E = voltsTo find (I) divide (P) by (E).A 15 amp circuit should not be loaded more than 80% continuous load. 12 amps.... Or 1440 watts/Va.... | |
| Tube Basics 101: What is a rectifier tube for? Nnck,Here is a link you may find informative....A taste of tubes |