ramtubes
Responses from ramtubes
| Does anyone care to ask an amplifier designer a technical question? My door is open. I forgot the great Leak and Quad amps, low powered but wonderful. They are indeed. The Leak is a rather standard circuit as I recall. However the QUAD 2 has a very interesting circuit. Unique, thoughtful.I sell more of my 35 watt than my 100 wa... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @atmasphere To the third, a correct answer requires a correct question- the **response** is not raised; the **pre-emphasis** is, and by about 5 db (so the simple answer is thus 'no'). Remember that the curve is just that and is the amalgam of thre... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. RalphThanks for the link. It is clear to me that above and below 1 KHZ there is 6 dB of EQ on either side of the red line, making a total of 12 dB as stated before.To be clear I am not talking about what is fed to the velocity sensitive cutting he... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @atmasphere Ralph, How about a curve. People here cant understand what you said, can anyone?Can you ever give a simple answer?From 500 Hz to 2000 Hz the response on the record is lifted at a rate of 6 dB/octave for two octaves. Thats 12 db total.... | |
| This question is aimed to TRUE Elec Engineers, not fuse or wire directionality believers. @cakyol Has any of you ACTUALLY worked with and recommend a SSR which does not introduce any audible distortion on the speaker line and which can operate with a large range of trigger voltages (12 - 48 VDC, may need to have on board voltage regul... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @atmasphere Does anyone find this interesting or alarming that we call the RIAA curve the big one and not make much mention that it is for velocity transducers only?Ralph please explain your comment below.No. Its well understood that is the case... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @ atmasphereSo what is the cutting curve? Can you show us please? | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. Hey Roj, Its Verastarr Mikey.. Id like to know when we roll tubes and hear differences that are so different and unique even when its the same exact tube type, how and what exactly are we hearing ? Lets take 2 6sn7GT for instance, that for the pur... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @atmasphere Try telling the manufacturers of cutter electronics that. How about telling us about the cutting process? The range of constant velocity cutting and range of constant amplitude cutting. I was not discussing cutting, but you appear ... | |
| MAC Autoformers? @toshko1 Hello, I found the thread and read it very carefully. Presently I am reverse engineering this type of block scheme of power amp.Thanks for reading the thread carefully, however there is not enough information to calculate the transform... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @bdp24 Roger, could it be the old 1kHz frequency was chosen in relation to the RIAA equalization curves? That would have been a better choice resulting in 500 Hz for the low hinge and 2 Khz for the high. I would prefer a larger gap as stated e... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. Concerning tone controls, thank you,,, very good to know It appears in design the good ideas are only done briefly by the few yet the bad ideas are done by the many and go on forever.I think the choice of a single hinge point was the biggest mista... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. ON TONE CONTROLSThe typical bass control has a hinge point at 1,000 cycles, much too high. In my system I use the Subwoofer level control (100 Hz and below) to set the bass to the right level without making vocals muddy like most tone controls do.... | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @jyprez yes, I would be happy to pay for coursework on the subject. What do you offer? Currrently basic amplifier design. Are you local to Richmond. CA 94806? | |
| Does anyone care to ask an amplifier designer a technical question? My door is open. @c1ferrari Re: BeveridgeHi, Roger,You'd worked on the Bev DD amps for my Model II's when you were situated in Santa Barbara. Unfortunately, Rick was unable to complete the restoration process and my panels require attention. Can you assist?T... |