tube fanatic

So Jeffrey, are you claiming that a 2 watt tube amp can deliver hundreds of amps of peak current? Typical EEs would not find anything you said above to be reasonable because they understand electronics! Didn’t you once state on AA that your ears can’t hear much above 5kHz? Maynard

Among people I know the lack of compliance stems from arbitrary and ridiculous restrictions. For example, New York State has banned dancing at all gatherings. My daughter attended a tiny outdoor wedding with 20 people. She could not dance with her boyfriend with whom she lives, nor could the bride and groom dance with each other in spite of living together for the past 5 years. The absurdity of this scenario is evident. NYC has even issued sex guidelines for presumptive COVID protection with some weird suggested behaviors like having sex through a wall. They even make recommendations for prostitutes: https://www1.nyc.gov/assets/doh/downloads/pdf/imm/covid-sex-guidance.pdf Connecticut has just banned indoor gathering of more than 10 people in private homes. Would it really matter if someone had 11? How long will it be until surveillance cameras are installed on every street to monitor what we do? While we all have a responsibility to each other to try to limit virus spread there is no way we can win against a pathogen as contagious as this one (just my opinion of course). As the noose of restrictions tightens the more people will push back. That is human nature and it will not change. Maynard

What about animal shelters? Would you kill off all the animals there? Regarding our food supply, it’s entirely possible that the virus will ultimately mutate and infect virtually all animals. Would you then kill all of them and eat synthetic food instead? Sadly, we humans think we can kill off all pathogens. Unfortunately, they are much smarter than we are. Maynard

https://www.reuters.com/article/health-coronavirus-denmark-mink/denmark-plans-to-cull-its-mink-population-after-coronavirus-mutation-spreads-to-humans-idINKBN27K1YV When the virus is found in dogs and cats will they be killed also, and will people be forced to have their pets tested? Maynard

I have always admired the creativity of someone who can turn out an amp which looks like this: https://www.deviantart.com/aevilmike/art/SteamAmpII-01-490593565 Maynard

Jeffrey, as Henry has explained to you, this thread is not about your design philosophy. Why can’t you respect his desire to keep this as a PICTURE thread? I was enjoying it greatly until you began spouting your ideas. For the benefit of all who only want to look at amp pictures please refrain from technical comments. Thank you! Maynard

I thought this thread is for posting pictures of tube amps, not criticism of how they are made. Maynard [It is, per OP's request, I will spit off unsolicited advice into their own thread(s), if y'all are interested you can read what others have to say about how you are doing it all wrong, or not.]

Jeffrey, in regard to your first point, it is totally untrue in my experience. As to your second point above, back in the day I built many wonderful push-pull tube amps for use with Klipsch speakers. How do you come to these conclusions? Maynard

The “Little Tater” SET : Maynard

A detailed description of the listening room, listening level, proximity to the speakers when listening, types of music listened to, etc. would be helpful in terms of making recommendations. Maynard

Yes— contact Bob Latino. Maynard

A “few” of the demo units: Maynard

The “Super Amp 1” parallel SEP: Maynard

The “Little Joy” ultra flea power SEP spud: Maynard

Is Sal still restoring amps? I heard he is only selling parts now. Maynard

A clipped sine wave does not have a dc component. I would be more concerned with a SS amp which has a very high dc offset. The latter is easily measured. Maynard

From 1948..... Maynard

Here is what Augspurger and Murphy had to say about this very interesting subject: https://butleraudio.com/damping1.php Maynard

Well stated. Yet, having an output impedance of 30+ ohms, as is often found with SEPs when no voltage fb is used, seems to make little or no difference when used with many speakers. Maynard

The DC resistance of the secondary is of no consequence in general. The output impedance is a different matter. I have used high output impedance as well as low output impedance amps with Khorns and have gotten excellent results with both. Again, you would need to experience different amps yourself and choose what you find most pleasing. No one can tell you what will be best for your ears. Maynard

It depends on your definition of satisfactory. Some users like very low DF SEPs, often with less than 1 wpc, while others prefer 60 or more wpc. The only way for you to make a determination is to try various tube amps and draw your own conclusions. Maynard

What problems are you having with the A300? It is not a difficult amp to service. Maynard

No. It requires a totally different operating point as well as other changes..... Maynard

The “Little Surprise” mono parallel SEP spud amp. Maynard