almarg
Responses from almarg
| Can I ground my preamp? Clio09: I've been told that if one uses interconnects that are shielded, it's best that the shield is connected to the ground at one end of the cable. I've also been told you can disconnect the entire ground at one end of an interconnect. Never tr... | |
| Warming-Up Amps w/o Inputs or Speakers Attached Herman is correct in referring to inductive kickback that will occur in the output transformer of a tube amp in the absence of a load, and Rodman is correct in that damage is unlikely to occur in the absence of an input signal. However, "unlikely"... | |
| Who needs a MM cartridge type when we have MC? It seems to me that the term "low pass filter" is applicable here no matter how much resoning is opposed to it. The combination of inductance, resistance and capacitance, the way it exists at the input to a phono preamp comprises a low pass filter... | |
| 50' speaker or 50' interconnect? I would have tended to run the speaker wires longer for fear that longer runs of low level signal wires are more subject to noise and interference from external sources. I guess not so much if shielded.And especially not so much if balanced! And t... | |
| 50' speaker or 50' interconnect? What preamp are you using, and if you can readily determine it, what is its output impedance?The higher the output impedance, the more critical cable capacitance will become. The symptom of cable capacitance that is too high in relation to output ... | |
| MM cartridges and capacitance Here's their website. Looks like those products and many others are still available:http://www.dbsystemsaudio.com/Best regards,-- Al | |
| MM cartridges and capacitance Thanks, Stan. I just checked and sure enough my "Phono Equalization Kit" was made by DB Systems.It provides polystyrene capacitors, mounted on rca plugs, with values of 100, 150, 200, 300, and 400 pf; 100 ohm 1% metal film resistors mounted on rca... | |
| MM cartridges and capacitance T_bone & Lew, thanks very much for the nice words.JB, in my experience MM cartridge specs do usually indicate recommended load capacitance. The 47K number, btw, is not capacitance, it is the recommended load RESISTANCE (47,000 ohms) for many M... | |
| solid state vs tubes 10-05-10. Magfan: As near as I understand it.....Carver nulled the amps by somehow comparing thru a single speaker. When the speaker made NO sound....or some large value 'down', they amps were producing the SAME sound. The louder the speaker, the ... | |
| Radiohead - Live in Praha video: Free Download Hi Bill,A .rar file is something like a .zip file. It "contains" one or more files that are in other formats (in this case presumably a video format), in compressed form. What you need is a program that will extract those files from the .rar "cont... | |
| How to determine capacitance with the info I have Al, thanks for the info, that is what I was looking for. It also seems to be an extremely high capacitance cable for use with a MM cartridge ?Hi Wayne,Yes that does seem somewhat high, and the phono stage or preamp input will add a little bit more... | |
| MM cartridges and capacitance T-bone, if we use units of henries for L, and units of farads for C (which results in F being in units of hertz), then both L and C will be far less than 1. In fact C will be on the order of 0.0000000001 farads (or 100 pf). Therefore we will end u... | |
| MM cartridges and capacitance If the inductance estimates are correct, it means one wants to have capacitance as low as possible in order to preserve the harmonics 'air' which extend beyond the audible band. It would be difficult to imagine why one would want to bring that mou... | |
| MM cartridges and capacitance From the things I have read, and the cart designer I have talked to on the subject of that resonant peak in frequency response, that peak is waaaaaaay outside the audible band. T_bone,That's true in the case of MC's, because of their much lower in... | |
| How to determine capacitance with the info I have A conductor and a shield don't have significant capacitance by themselves. The capacitance exists BETWEEN conductors or BETWEEN a conductor and a shield.I don't know exactly what the cable configuration is, but I'll hazard a guess that it provides... |