LampizatOr Golden Atlantic + TRP

"Any" triode tube could be used to rectify AC to DC and that's essentially what they are doing with this STL unit. Since the 805 is an impressive looking single triode tube, they use two for full wave rectification with the side benefit of space heating.

Cheers,
Robert

I've been using my Lampizator Atlantic3 TRP VC for a couple months now and have done a little bit of tube rolling. Nothing exotic, but a few early triodes (thanks to DesignFX for venturing into the triode scene) and a variety of type 80 rectifiers. I'm afraid I'm not overly interested in the European rectifiers due to expense and voltage dropping adaptors.

I'm not a fan of adaptors period, actually, and to that end I'm considering changing the rectifier socket to a UX-4 so that I can plug my favorite (so far) RCA Globe 280 in directly. The only other tube I'm currency considering trying is a 274b - but it's available as the 274a which is the same tube exactly with a 4-pin base.

However, before I go off half-clocked, is there another very well regarded rectifier which may knock the 80 off of the pedestal I've put it on? Something not wildly expensive that is seriously good and yet different from the 80? Or another 4-pin rectifier with a strong recommendation for post-surgery rolling?

Incidentally, so far Brimar 6J5G are my go-to favourite tube so far, with Philco type 37 and type 76 close seconds, in that order. Sadly these latter two also require adaptors. I'll be trying 6SN7 at some point in the near future.

Cheers,
Robert

Redwoodaudio said:

I actually ordered one of these with the 805 tubes + choke option. Should come next week. I'm very excited to listen to this contraption.

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Any update on how the addition of this has influenced the sound of your system?

adamaley said:

Any update on how the addition of this has influenced the sound of your system?

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Its been two days and I'm getting used to the change, which feels very significant. Haven't gone back to a/b test it yet, but I can based on memory of using regular lampi rectifiers over the past 2-3 years say that the stage has increased in all directions, the atmosphere of the recordings has become more palpable, the sound has more vibrancy and vividness. Precision of the imaging and overall micro-detail seems to have been lost a bit, perhaps a little bit of crispness of the attack also lower, but I'm really digging the immersive experience. Last night I cranked it up louder than usual and it was thrilling.

I took Groovy Sauce's advice and purchased a Space-Tech Lab STR-104-Mk2-Super rectifier with the choke option. I initially tried it on my Lampizator Golden Atlantic TRP2 DAC by replacing an EML 274B rectifier tube and the sound barely improved. Then I put it on the preamp and the power/dynamics shot up to another level. Enabling the choke softens the sound a bit, but I like it better. The sound on some songs is much richer and fuller, and the bass thumps hard -- real hard. The Space-Tech Lab rectifier makes a substantial improvement. I'm sure the 805 version would be much better for the Lampi, but I didn't want to spend that much money on it.

Early B. said:

I took Groovy Sauce's advice and purchased a Space-Tech Lab STR-104-Mk2-Super rectifier with the choke option. I initially tried it on my Lampizator Golden Atlantic TRP2 DAC by replacing an EML 274B rectifier tube and the sound barely improved. Then I put it on the preamp and the power/dynamics shot up to another level. Enabling the choke softens the sound a bit, but I like it better. The sound on some songs is much richer and fuller, and the bass thumps hard -- real hard. The Space-Tech Lab rectifier makes a substantial improvement. I'm sure the 805 version would be much better for the Lampi, but I didn't want to spend that much money on it.

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Can you clarify “then I put it on the preamp”? Your gear isn’t listed here so I’m having difficulty following.
You say there might be improvements with the 805 version- what are the capabilities of the version you have and how do you feel it is holding something back?

There are different STR models that allow for the use of different tubes - some can use big bottle transmission tubes such as 211, 805, and 845. You could even use mercury vapor tubes such as the 866a if you want to risk it for the biscuit. I have an STR-1002 on order myself.