lewm
Responses from lewm
| Russian Tube Preamp, No Return, Here I go again https://www.head-fi.org/threads/6922-tube-review-17-top-6922-6n23p-e88cc-cca-7308-e188cc-tubes.76107...6N23 can be replaced by 6922 or any of its congeners, and they are all over the place. I am not at all sure that tubes are the problem, but it ... | |
| Russian Tube Preamp, No Return, Here I go again Are you referring to 6N23 types? Didn't we agree that the ubiquitous 6922 and its many congeners are substitutes for the 6N23, as per this website as well:https://www.head-fi.org/threads/6922-tube-review-17-top-6922-6n23p-e88cc-cca-7308-e188cc-tu... | |
| Please help! My Fender quads reverb isn’t working Have you tried turning it off, then turning it on again? | |
| Russian Tube Preamp, No Return, Here I go again With the chassis open to view, pick the unit up and give it a good shake. Do you see any parts moving around? Turn it upside down; does anything hang down or fall out on the floor? I am sure the actual problem is minor and due to something having... | |
| Turntable Oscilloscope Readings I would assume the OP knows how to use his oscilloscope. Also, as Mijostyn said, it doesn't really matter whether the scope is calibrated or not, if the OP took his readings at the same scope settings for each stereo channel, using the same pair ... | |
| What is better, analog or digital? One of those two for sure. | |
| Turntable Oscilloscope Readings Do you have a SPL meter? If you can confirm with a meter that the SPLs from each speaker are about the same, measured at about 1 meter and preferably using a pure test tone, then I wouldn’t trust the oscilloscope readings.Actually, that makes me a... | |
| 6922 recommendations for ARC PH7 This dialog could be superimposed on a discussion of fine wines, just by changing a few words. I think the effects of tube rolling are way overblown, although "real" in the eye of the beholder. In my opinion, a few judicious changes to a circuit... | |
| Does tube testers tell how much life is left for tubes? In the end, we usually are alerted to the possibility that a tube or tubes are failing by the fact that the our system sounds "off", not as good as usual. Only then are we motivated to test tubes. At that point, if any tubes measure low in trans... | |
| Does tube testers tell how much life is left for tubes? The best measure of the condition of the tube is to measure transconductance. Transconductance is a measure of the change in current flow across the tube ("plate current") for a given change in grid bias. (I didn't look that up, so if I got it w... | |
| Turntable Speed I use the Phoenix Engineering Eagle and Roadrunner to control the motor on my Lenco. PE designed the Eclipse system for SOTA and certainly it is wonderful for any turntable with an AC synchronous motor, but now we are talking nearly $1000 in cost... | |
| My conclusion: mid level $$ analog vs digital I'm with Frogman; I don't care for anyone else's opinion, but I do respect anyone else's opinion. This is not an issue that can ever be resolved to everyone's satisfaction, because we all have different personalities, different cues we look for i... | |
| Turntable Speed Timeline itself is accurate. The problem with it is that it relies on a human being to assess its accuracy by following a laser dot on a wall. Probably the timeline is better than the observers of the timeline. | |
| Technics SL1000 MK3 (SP10 MK3) performance/value VS modern turntables? Ok. | |
| Multiple amplifiers shutting down when playing vinyl through a tube phono stage I always had a feeling that in the good old days, with the good old oil and paper capacitors that contained PCBs, now outlawed, leakage was less of a problem. I have had a personal bad experience with one or two of the modern era oil capacitors, a... |