Lampizator Valve / Tube Rolling Review Thread

[Tim F]

Hey Golum,

Thanks for the reply. I've got these, just to have a play around....

Haltron 5R4GY which is my fav so far. Lacks some stereo imaging but is ok all round
Philips 5R4GYS, a forward sounding valve that to me lacks lower bass, so immediately impressive but not brilliant.
274B Shuguang cheap as chips but average

I have NOS Sylvania 45 with etched bases.

I can't run 300b as my GG2 does not have a setting for it.

Cheers, Tim

 

[Alrainbow]

Before you go down the set road buy one new recti. It’s the one tube that should be new or near new. The set outputs can be older as they are used at 10/20%
See attached for a few cheap recti to buy

 

[Alrainbow]

https://www.ebay.com/itm/Shuguang-W...B-5AR4-5Y3GT-5Z3-Hifi-Audio-DIY-/323804092755

Below is to me of the best for the money in recti tubes.
https://www.ebay.com/itm/1pcs-New-S...T-5U4G-5Z3PAT-Vacuum-valve-Tube-/283676643056

 

[Alrainbow]

Hey Golum,

Thanks for the reply. I've got these, just to have a play around....

Haltron 5R4GY which is my fav so far. Lacks some stereo imaging but is ok all round
Philips 5R4GYS, a forward sounding valve that to me lacks lower bass, so immediately impressive but not brilliant.
274B Shuguang cheap as chips but average

I have NOS Sylvania 45 with etched bases.

I can't run 300b as my GG2 does not have a setting for it.

Cheers, Tim

Show us the back of your gg dAc please
300 b tubes tend to be slower than a px25 is. The px 25 to me is a halfway mark between a 45 and a 300b.
The 242 while to be the fav does not work well in all LAMPI dacs.
But the recti is tube to set the pace so to speak. No matter how good a output tube is of the recti is old or just not a good choice a less then good sound is heard.

 

[Alrainbow]

Until you get one good recti and confirm it’s virtues don’t spend the money on exp recti or output
Shanghai sorry for spelling makes a good 300b mesh to try as is there 274b recti.
The large metal base one I linked is where we all should start if I’m asked. It works in all LAMPI dacs very well.

 

[Tim F]

Thanks for the advice Al. What don't you like about the 242?

 

[Tim F]

Hey Golum,
Obscure q! I see the 242 has high gain, any idea if this'll cause problems going into an ARC Ref 3 pre-amp?

Not ignoring rectifiers but some of these are potentially available.

Cheers, Tim

 

[Golum]

Tim i drive with this Ref6 and have no issues overdriving the preamp. Now this also depends on the output voltage of the DAC so you need to check this as well as i could not use this tube in gg1 for example...

 

[Alrainbow]

No I love the 242 it’s my fav tube
It just does not work well in all dacs / systems.

 

[Tim F]

Such a drastically different view to my amigo Golum. Can you elaborate? Cheers, Tim

 

[Alrainbow]

To who me or goran

 

[Tim F]

To who me or goran

To you Al.

 

[Alrainbow]

Not sure but here goes
The 242 tube is a fast or is a balanced sound. It’s only draw back is it’s high output and this is not always obvious. In fact unless you hear it done well you may write it off.
It can over load the preamp
But more importantly it can effect the sound making it brittle or tense long before or clips the pre amp. for this reason I’m warning others.
Now of your dac has a vol control it’s most easy to make it work
I hope this is what you needed to know

 

[adamaley]

Not sure but here goes
The 242 tube is a fast or is a balanced sound. It’s only draw back is it’s high output and this is not always obvious. In fact unless you hear it done well you may write it off.
It can over load the preamp
But more importantly it can effect the sound making it brittle or tense long before or clips the pre amp. for this reason I’m warning others.
Now of your dac has a vol control it’s most easy to make it work
I hope this is what you needed to know

I can attest to the virtues of the 242 rectifier. Alas, it overdrove and distorted at peaks in my system. If it works in your system, definitely prioritize giving it a shot.

 

[Alrainbow]

It is double the norm output voltage and due to its gain it peaks much more.
On another note the trp is much more tolerant and I’m loving it. It’s only down side is recti it’s all new and critical

 

[christoph]

Does any of you know if the Ayon AA62B output tubes can be used in a Lampi DAC?

 

[christoph]

Hey Golum,
Obscure q! I see the 242 has high gain, any idea if this'll cause problems going into an ARC Ref 3 pre-amp?

Not ignoring rectifiers but some of these are potentially available.

Cheers, Tim

If the 242 works in a system despite its high gain, it really is a killer tube

 

[christoph]

Does any of you know if the Ayon AA62B output tubes can be used in a Lampi DAC?

@User211 or @wisnon
Do you know if the Ayon AA62B can be used in a Lampi DAC?

 

[wisnon]

No clue...only heard that its a 308b replacement...whatever that is.

 

[wisnon]

http://www.lauferteknik.net/electronics/ayonaudio/aa62b.htm

10w!