The plus-side to threads that build a momentum, and move on to nearby matters - they keep rolling and tempt folk to think and add to a hot discussion. And widening the talk to other tubes of the era of original Mesh Anode designs is not so far off topic anyway.
Atomizing a debate into slow moving fragments can kill the enthusiasm, and good contributors drop out.
Anyone searching rare valve types will find that specific information -> no problem!
Just as importantly, Andy @andyjevans is the OP. His choice should carry most weight.
Atomizing a debate into slow moving fragments can kill the enthusiasm, and good contributors drop out.
Anyone searching rare valve types will find that specific information -> no problem!
Just as importantly, Andy @andyjevans is the OP. His choice should carry most weight.
Oh, for heaven's sake, there's a "search" function on DIY Audio. Why don't you stop manipulating everyone here as if you're the only person who knows the truth of everything in life? Sheesh......
We welcome any further friendly and positive discussions. Keep the topic in mind and leave the past behind, but don't shy away to post relevant side info.
I'll see if I can clean the thread tomorrow.
Andy,
First, no one 'owns' a thread.
Second, I came here in good faith to encourage the participants to carry on with the topic.
Third, with cleaning I mean removing all discussion unrelated to the topic, including this one. No technical posts will be removed, however, some collateral is unavoidable. If you like it as is, fine with me and less work. 🙂
Now, where's my morning coffee...
Thanks Netlist! Your good work as a moderator is appreciated.
I'd love to talk more about coffee - I'm an enthusiast! But I had better stay on topic and behave myself.
I am, in fact, listening to my nice Philco mesh plate 27 tubes as I write this....
Andy
I'd love to talk more about coffee - I'm an enthusiast! But I had better stay on topic and behave myself.
I am, in fact, listening to my nice Philco mesh plate 27 tubes as I write this....
Andy
He is even more blind to the fact that actual WE300Bs are being made again
And 212, 211, 805, 845, 300B, WE420A, WE310A, 2A3 all being made in china new
Speaking of which I just got some 300Bs, there are many mesh 300B options from china
PSVANE 300B-N
JYL (Golden Voice) 300B-GamiVal (funny name i think the acronym used is GVL)
Linlai 300B-N
JYL 300A
PS : Linlai might as well be PSVANE. Golden voice is a separate company from Hunan meanwhile there is also another brand called Tianlai which are actually sold by Shuguang directly
I have read that the chinese hifi scene likes JYL tubes the most now. The PSVANE are the cheapest mesh 300Bs and it is a egg shaped tube as well along with the Linlai likely because they are very possibly the same tube. Both PSVANE and Linlai 300B are 80usd. While the Golden voice 300B-GVL and 300A are 150usd and 250usd respectively
Doesn't help that PSVANE and Shuguang are both from Changsha! But they appear to be separate entities, also one of them allegedly are former PSVANE employees so go figure. Honestly, I don't care since we get great tubes
I wish that I have money for higher end 300Bs but right now is not the time (i got the 300B+ on a steal, 60usd a pair (and they're matched!) instead of 150usd usually for 300B+)
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How about a close-up of the mesh anodes of a 1930s GEC-Osram U10 - FW rectifier?
I have some shuggy treasure 300B-Z tubes that are made like that, but I call those "punch plate" rather than mesh plate.
Hi DJDestiny,
I'm not blind to new manufacture at all. Very poor assumption on your part.
I will only buy well made products (tubes in this case). Many are made better than when first introduced, but now the prices are too high. Just silly high in many cases, any guess as to why?
I'm going to say something else some will probably have an issue with. Tubes don't "have a sound". They interact with the circuit they are in. So if you want to hear that technology, you restore a period piece of electronics. That's when you hear how they sounded. I mean, that stuff was supposed to be better, more musical right? Today we can degenerate a tube to perform very close to the original. That requires a different circuit, so it isn't an option when restoring equipment. However, it is a viable option when designing new equipment. Using old type tubes I guess is an easy way out, but it sure isn't authentic. Your transformers and other components are totally different today. So building new with old numbers is kind of a lie in a way. I get it. Fashion, looks cool. If you can't restore something authentic, a cheap way to get that kind of thing.
If you want to make a high distortion, low efficiency amplifier you can uncertainly do that. But accept the truth that you like the sound, but it sure as heck is not more accurate or more musical (ever hear a symphony orchestra through these?). Just be honest, because the marketing behind new build products is anything but honest. It's a sound, it isn't authentic but it is a fashion for some. Cool.
This fad did drive the economics of restoring a real piece too high for most. The real piece is what you actually do want if you are a proponent of this technology.
I'm not blind to new manufacture at all. Very poor assumption on your part.
I will only buy well made products (tubes in this case). Many are made better than when first introduced, but now the prices are too high. Just silly high in many cases, any guess as to why?
I'm going to say something else some will probably have an issue with. Tubes don't "have a sound". They interact with the circuit they are in. So if you want to hear that technology, you restore a period piece of electronics. That's when you hear how they sounded. I mean, that stuff was supposed to be better, more musical right? Today we can degenerate a tube to perform very close to the original. That requires a different circuit, so it isn't an option when restoring equipment. However, it is a viable option when designing new equipment. Using old type tubes I guess is an easy way out, but it sure isn't authentic. Your transformers and other components are totally different today. So building new with old numbers is kind of a lie in a way. I get it. Fashion, looks cool. If you can't restore something authentic, a cheap way to get that kind of thing.
If you want to make a high distortion, low efficiency amplifier you can uncertainly do that. But accept the truth that you like the sound, but it sure as heck is not more accurate or more musical (ever hear a symphony orchestra through these?). Just be honest, because the marketing behind new build products is anything but honest. It's a sound, it isn't authentic but it is a fashion for some. Cool.
This fad did drive the economics of restoring a real piece too high for most. The real piece is what you actually do want if you are a proponent of this technology.
Here are some ST envelope 27 mesh plates from my collection.
Diamond (licensed by RCA). It has square plate with two rectangular weld holes on each side. The grid is supported by two pillars. The cathode has newer pull-through style heater, not the old porcelain. The cathode is much longer than the plate, I guess to conform to old heater specs with the more efficient heater.
Diamond (licensed by RCA). It has square plate with two rectangular weld holes on each side. The grid is supported by two pillars. The cathode has newer pull-through style heater, not the old porcelain. The cathode is much longer than the plate, I guess to conform to old heater specs with the more efficient heater.
Attachments
I bought it for about $5 from a store that no longer exists. Wish I had a match. I just have a non-mesh 27 to go with it.
Are ST 27 less microphonic than globes? I would say no, both kinds ring like camertone when you bring them close to your ear and tap the base.