Timeline for How do metal cases work with connectors & isolation?
Current License: CC BY-SA 3.0
12 events
| when toggle format | what | by | license | comment | |
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| Apr 19, 2015 at 1:10 | comment | added | user207421 | @ScienceSamovar Tubes don't perform poorly at low output. It is more probably the reverse: tubes performing poorly at high output, which the musician may want, so he cranks it up and attenuates. | |
| Sep 28, 2014 at 7:21 | vote | accept | ScienceSamovar | ||
| Sep 26, 2014 at 23:44 | answer | added | Jim Kelley | timeline score: 1 | |
| Sep 24, 2014 at 2:38 | comment | added | ScienceSamovar | @EJP, just google "tube amp attenuators", not a hard thing to find. To be short it has to do with tubes perform poorly on low output volume, hence you crank it loud and then lower it down. | |
| Sep 24, 2014 at 1:54 | answer | added | user207421 | timeline score: 1 | |
| Sep 24, 2014 at 1:36 | comment | added | user207421 | I would question why you're doing this at all. Amplifiers have volume controls: why do you need another one? especially one that wastes power? | |
| Sep 24, 2014 at 1:33 | answer | added | Peter Bennett | timeline score: -2 | |
| Sep 23, 2014 at 22:58 | answer | added | George Herold | timeline score: 0 | |
| Sep 23, 2014 at 22:31 | comment | added | ScienceSamovar | It's 100 Watts tube guitar amplifier, output voltage is about 25 Volts RMS the highest. It is quite probable that I'm an antenna in this circuit, but still the question is on how does commercial equipment goes around that problem. And yes - the noise is notable even not on max volume(actually even on very low volume it screams loud enough) | |
| Sep 23, 2014 at 22:21 | answer | added | Scott Seidman | timeline score: 1 | |
| Sep 23, 2014 at 22:20 | comment | added | Pete Kirkham | This does seem unusual - at speaker voltage levels you shouldn't be able to hear human noise. Perhaps you're acting as either an antenna or your capacitance and either causing feed back into the amplifier somehow - can you give details of the amp? | |
| Sep 23, 2014 at 21:07 | history | asked | ScienceSamovar | CC BY-SA 3.0 |