rodman99999
Responses from rodman99999
| 12at7 with 12ax7 tubes Hi South43- A quote from a tube site: "6201- Usually appears along with 12AT7WA designation (military version) on the same vacuum tube. However, some tube makers made commercial versions of a 6201 as an "industrial" 12AT7. Sylvania made a 6201 vac... | |
| 12at7 with 12ax7 tubes Yes- and for decades. Guitar, microphone pre, and home audio amps. The AT's are usually slightly less microphonic/noisy, and sometimes it's nice to have less gain in a driver stage. The 6201 tubes are especially nice in that(quietness) regard. I d... | |
| 12at7 with 12ax7 tubes Actually, there are some semantics involved, as the 12AX7 can be replaced with a 5751, 12AT7 or 12AY7, but the 12AT7 can only be replaced with a 5751 or a 12AY7. ERGO, "interchangeable" may not be the correct word. | |
| what ohms would I have? I can't say if they would go that route or not. Call and ask: (866) 883-1488) | |
| what ohms would I have? You could get away with the tweeter, and an 8 ohm mid, but the response(you'd have a hole) would be far from optimum. Then too: did you make certain the efficiency of the purchased drivers matched? As Mr T suggested: getting a kit from someone lik... | |
| what ohms would I have? Duke is absolutely correct. The impedances that the crossover components see(inductors/capacitors) determine at what frequency they begin their rolloff. Also- If you were to parallel the woofers: the resultant impedance would probably drop below 2... | |
| how much tubes influence on the sound ??? Shalom Bolero32: The small signal tubes(preamp, phase splitter and driver tubes) and your rectifier will make a MAJOR DIFFERENCE in the sound, imaging and sound staging of your system. That also depends on the rest of your equipment, cabling, list... | |
| 12at7 with 12ax7 tubes Happy listening!! | |
| 12at7 with 12ax7 tubes Sebrof- I guess I WAS off a bit. the 5751 is 30% reduction in gain. These sites have the difference as 40% less for the 12AT7: (http://thetubestore.com/gainfactor.html) (http://cydathria.com/fdm/12AX7_sub.html) and(to me at least)that seems greate... | |
| Tube flash Mr J- How old was the tube that failed? Have you contacted Kevin in regards to the tube's failure(and possible warranty)? Did the same thing happen more than once? You mentioned, "the problem has continued"(why I ask). | |
| 12at7 with 12ax7 tubes The 12AT7 is interchangable with the 12AX7, but has slightly more than 30% less gain. ergo: You will have to turn the volume a bit higher to get the same SPL from your system. | |
| Tube flash As Hifi mentioned: most testers do not apply full operating voltages(B+) to the tube being tested. Tubes, under actual operating conditions, will occasionally either short, draw high screen current or open a connection internally. In the event of ... | |
| Synergistic Research IC Active Shielding Mr Sorlowski: The power supply/voltage to the shield is completely isolated from the actual conductor of the IC. The characteristics of the signal conducted by the interconnect are the same whether the component(phono, pre or power amp) is operati... | |
| Did I lose a tube? Hopefully, It'll be that simple. Happy listening! | |
| Did I lose a tube? Yes, it DOES! Swap all the tubes(channel to channel) and see if the, "thinness" changes channels too. If so- swap one pair at a time, and that will indicate which one is weak. It'll require a lot of turning off and on, but will save you the cost o... |