I did a bit of search and wonder why there is not a lot to find regarding this tube, especially given that the Curves / data looks really nice, even usable with an IT and in the Psvane version expensive, but still somewhat affordable: Psvane WE101D-L vacuum tube Western Electric Replica Pair [Psvane WE101D-L] - $453.99 USD
It could be an alternative to the 10y/801 in this application, no ? And when I remember the clio with Sif BA (which look a bit like smaller brothers), he claimed to get a unique holografic presentation as DHTrob with the 101D described as well...
...I am ready to pull the trigger, but just though if anyone has some listening experience and can compare to other types ?
It could be an alternative to the 10y/801 in this application, no ? And when I remember the clio with Sif BA (which look a bit like smaller brothers), he claimed to get a unique holografic presentation as DHTrob with the 101D described as well...
...I am ready to pull the trigger, but just though if anyone has some listening experience and can compare to other types ?
It's designed to work at low voltages, so might work well in a preamp. But for this reason it would be less suited to (high voltage) driver work - which the 801A can do very well.
Well...it goes up to 400W and 50mA...14 Watt...
Typical operating point at 350V/-20V/35mA/rp=3750 ohm...thesevalues are pretty much the same as the 801A as a driver...
Typical operating point at 350V/-20V/35mA/rp=3750 ohm...thesevalues are pretty much the same as the 801A as a driver...
Hello Frank,
The PSVANE link (above) says 300V max ? And the curves only show low voltage applications.
The WE101D original says 190V max, which suggests that the geometry is optimised for low voltage.
At the least, we would expect to see the curves, to look for compression at HV.
If a high-voltage modern built DHT is what you need, a PX25A (if the curves really match the original) would be much better suited.
The PSVANE link (above) says 300V max ? And the curves only show low voltage applications.
The WE101D original says 190V max, which suggests that the geometry is optimised for low voltage.
At the least, we would expect to see the curves, to look for compression at HV.
If a high-voltage modern built DHT is what you need, a PX25A (if the curves really match the original) would be much better suited.
Hi Rod...the title of this thread is WE205D...the 101D is a different animal which I find as well difficult...I just realize that I somehow linked to wrong tube...here is the correct one(sorry):
PSVANE WE205D-L Vacuum tube Western Electric Replica Pair [Psvane WE205D-L] - $473.99 USD
http://www.tubecollectors.org/we/archives/205d.pdf
PSVANE WE205D-L Vacuum tube Western Electric Replica Pair [Psvane WE205D-L] - $473.99 USD
http://www.tubecollectors.org/we/archives/205d.pdf
Oh yes, that is better voltage range!
But I could not find any curves for Psvane version.
350V is a good voltage for 300Bs.
But I could not find any curves for Psvane version.
350V is a good voltage for 300Bs.
I ordered a pair and will compare them against my 801A...they are quiet simlar to the
Ca , Tube Ca; Rohre Ca ID15607, Triode, vacuum
QUAD OF4 SIEMENS SIF PTT3S = CAS TRIODE FOR AUDIOEXTRA | #32735952
...stronger heater...got some CA and PTT3 to compare as well...
Ca , Tube Ca; Rohre Ca ID15607, Triode, vacuum
QUAD OF4 SIEMENS SIF PTT3S = CAS TRIODE FOR AUDIOEXTRA | #32735952
...stronger heater...got some CA and PTT3 to compare as well...
...which I have here as well...I concentrated on the end triode comparison first...still a bit work to do, but it will become at least a 845 in SE or PSE...currently driven by two stages of 801A...230Vpp...
The chinese copycats copy just anything.
But for quality, nobody wants to buy chinese products.
Hope those last as long as the WE did.
But for quality, nobody wants to buy chinese products.
Hope those last as long as the WE did.
Well, normally I use NOS as well, but in this case, just to understand whats going on with this type of construction, the chinese are good enough for me...what I like about the 205D its a nice choice to drive some IT...and it has a much beafier filament than Ca, so I guess more dynamic maybe as well...on the other hand, 801A is even one size bigger and with TT filament, extremly linear, so we'll see...it will take some time as the chinese are all on vacation now...
Once I had the chance to audition two double mono preamps from the same manufacturer.
One was with IT and the other was with cap coupling between the stages. Both uses in- and output transformers.
And know what? The cap amp sounded better to me.
One was with IT and the other was with cap coupling between the stages. Both uses in- and output transformers.
And know what? The cap amp sounded better to me.
Last edited:
Well, this goes off topic I guess... but I can tell you that it depends. I used nearly any kind of cap with Jupiter copper my favourite... and the coupling I got from IT is better. It not just the coupling, it replaces a current source and gives the drivin tube more energy, the driven grid a low resistance to ground and and and.... and some tubes really come alive and show a much higher dynamic like even the 6sn7..if you found her ok bjt not great, you ought to try her with IT... becomes a different animal...
BUT
you need a very capable winder. I tried lundahl (ok but cap coupling might be better), monolith nano (surpasses cap coupling), but the stuff i am using now is much better than all of the above... 50AE (Alexander N.) winds on anything you want with OCC wire... litterally transparent, full of tone, just very near perfection. Search him and Ale Bartola or DHTrob, quiet a few people found that out.
BUT
you need a very capable winder. I tried lundahl (ok but cap coupling might be better), monolith nano (surpasses cap coupling), but the stuff i am using now is much better than all of the above... 50AE (Alexander N.) winds on anything you want with OCC wire... litterally transparent, full of tone, just very near perfection. Search him and Ale Bartola or DHTrob, quiet a few people found that out.
Last edited:
Yes, I believe you'r right.
It was a Shindo pre in two different versions. One with the small Lundahl interstages.
I have to say, that wasn't more bad, but it lacks tone colors vs. the cap model. Sounded like transistor pre.
It all depends on the quality of the IT. I'm very sorry that Tribute went out of business. I had planned to used their trannies. They had first rate recommendations and reviews and if I go that route, it must be first class I think, otherwise its not worth the extra money as you wrote. Have to make new auditions, maybe with a 300B amp.
It was a Shindo pre in two different versions. One with the small Lundahl interstages.
I have to say, that wasn't more bad, but it lacks tone colors vs. the cap model. Sounded like transistor pre.
It all depends on the quality of the IT. I'm very sorry that Tribute went out of business. I had planned to used their trannies. They had first rate recommendations and reviews and if I go that route, it must be first class I think, otherwise its not worth the extra money as you wrote. Have to make new auditions, maybe with a 300B amp.
Alexander was educated by Pieter (Tribute) and as well got some of his eqipment...and moved on...he is working closely with some high end manufacturers and is constantly trying new stuff.
Yes, your sound description of Lundahl, escpecially hib versions (i got as well amorphous) is about right. Amorphous is better, but still somewhat fuzzy, lean tone, messedup transparency compared to the big boys game.
I guess we cant blame Lundahl, they produce uniquely configurable transformer, but versatility comes with a price. BTW their filament chokes are super good.
Yes, your sound description of Lundahl, escpecially hib versions (i got as well amorphous) is about right. Amorphous is better, but still somewhat fuzzy, lean tone, messedup transparency compared to the big boys game.
I guess we cant blame Lundahl, they produce uniquely configurable transformer, but versatility comes with a price. BTW their filament chokes are super good.
Hi, some time ago I used these as driver and now have a pair WE-clones by Psvane for preamp purposes.
I can tell that these are really good drivers, have almost next to none microphonic inner structure and no noise like the Full Music punched plate versions.
Also compared these with a friend to the original WE205d from three different years, 1925, 1930 and 1940. Both '25 and '30 had more tone, '40 was on par with Psvane. Full Music was noisy but had significant less tone.
DHTRob - Blog
Must say though that recently I had some trouble with Psvane 101D-L WE-replicas. Multiple specimens had bad filament, uneven glowing and dying pretty fast. They got replaced (warranty) but the latest has much brighter filament as the ones delivered about a half year before. (attached picture as well). No idea if this is the case with 205D's as well..
If using as a preamp tube, you might want to place the attenuator (autoformer?) at the output and/or use a step-down line transformer. Or like Ale does, a voltage divider.
I wrote some words about this, most certainly arguable.. 🙂
DHTRob - Preamplifier design using power triodes
BR - Rob
I can tell that these are really good drivers, have almost next to none microphonic inner structure and no noise like the Full Music punched plate versions.
Also compared these with a friend to the original WE205d from three different years, 1925, 1930 and 1940. Both '25 and '30 had more tone, '40 was on par with Psvane. Full Music was noisy but had significant less tone.
DHTRob - Blog
Must say though that recently I had some trouble with Psvane 101D-L WE-replicas. Multiple specimens had bad filament, uneven glowing and dying pretty fast. They got replaced (warranty) but the latest has much brighter filament as the ones delivered about a half year before. (attached picture as well). No idea if this is the case with 205D's as well..
If using as a preamp tube, you might want to place the attenuator (autoformer?) at the output and/or use a step-down line transformer. Or like Ale does, a voltage divider.
I wrote some words about this, most certainly arguable.. 🙂
DHTRob - Preamplifier design using power triodes
BR - Rob
