[Paladin79]

Looks rather un-elegant in the Elegant Incubus, but it doesn't sound that way. On first listen it was pretty raw (and fatiguing). After about 4 hours of play, the top end has smoothed out quite nicely and has nice detail without fatigue. Great bass thump, but lacking fullness and bloom in the mids. Enough promise though to keep it going and see what develops after it gets 20-25 hours on it. If it's a typical Russkie that will make a substantial difference.

I may need to write an owners manual just for you!! The Incubus is probably embarrassed to be seen with that tube.

 

[bcowen]

I may need to write an owners manual just for you!! The Incubus is probably embarrassed to be seen with that tube.

Huh? I thought the Incubus was made for Russian Melz tubes. You mean I can use other brands?

 

[Paladin79]

Huh? I thought the Incubus was made for Russian Melz tubes. You mean I can use other brands?

It runs normal Russian tubes just fine, stop going with abnormal!!!! Geesh, building an amp should be easy but there is the human factor you have to contend with.

 

[Ripper2860]

That's @Ripper2860 's job. Just a public service announcement to preclude development of a frat-boy fight here.

Frat boy? You are giving me far too much credit. Everyone knows my jokes skew towards a younger crowd.

 

[Paladin79]

That's only until someone notes the GU50 is based on a Telefunken LS50 that is close to the family of FL152 -> EL152, EL153 and EL156.
Here's a sample from that family in my collection.

Do you actually use any of the Telefunken LS50's yourself? Do you have a pair you would like to sell?
If it helps, I am a Tom S. myself.

 

[Paladin79]

The solid plate Melz 1578 look alike should be on its way to @JKDJedi now, and then on the way to sam6550a. I am listening to one myself this morning along with various power tubes. Before long it will be possible to post opinions on said tube.

 

[JKDJedi]

The solid plate Melz 1578 look alike should be on its way to @JKDJedi now, and then on the way to sam6550a. I am listening to one myself this morning along with various power tubes. Before long it will be possible to post opinions on said tube.

stoked ..

 

[Paladin79]

The 63 Melz 1578 is a great tube for comparison unless you happen to have a 1958 perforated plate.

Last I looked some of the 1578's are going for higher prices, I saw one at $186. People list them as hard to find yet I tend to see plenty on Ebay.

 

[attmci]

Looks rather un-elegant in the Elegant Incubus, but it doesn't sound that way. On first listen it was pretty raw (and fatiguing). After about 4 hours of play, the top end has smoothed out quite nicely and has nice detail without fatigue. Great bass thump, but lacking fullness and bloom in the mids. Enough promise though to keep it going and see what develops after it gets 20-25 hours on it. If it's a typical Russkie that will make a substantial difference.

https://en.wikipedia.org/wiki/Copper_toxicity

 

[Paladin79]

https://en.wikipedia.org/wiki/Copper_toxicity

LOL, well to begin with the transformer cover is not copper, that is a copper looking paint @bcowen used. The copper on the top plate is sealed to maintain that particular patina.

I would say as long as Mr. Cowen does not grind through the top finish and start licking the top plate he should be fine.

 

[bcowen]

LOL, well to begin with the transformer cover is not copper, that is a copper looking paint @bcowen used. The copper on the top plate is sealed to maintain that particular patina.

I would say as long as Mr. Cowen does not grind through the top finish and start licking the top plate he should be fine.

It's actually a paint with copper particles in it so it reacts with the aging solution. I wondered why I felt weird after doing a couple shots of it.

 

[Paladin79]

It's actually a paint with copper particles in it so it reacts with the aging solution. I wondered why I felt weird after doing a couple shots of it.

Ah I never did ask you too much about that paint. I am pretty careful with copper as well as lead based solder. A couple good reasons besides Covid to wash your hands.

 

[Mr Trev]

Mmmm. Copper and lead: delicious but deadly.

<I promise, one of these days I'll post something other than a smart-ass remark>

 

[SHIMACM]

what do you think of this Melz?

 

[SHIMACM]

what do you think of this Melz?

Or is this one better?