[jonathan c]

I am excited for the 12AT7 /ECC81 tubes too because I can use those tubes in Ultimate that I bought for Odyssey.

I need to compare 12AT7 (60 mu) with 6SL7 (70 mu) in Ultimate. I have love both in Odyssey.

Don’t forget the 5751 (Raytheon: windmill getter); it too is 70 mu.

 

[LoryWiv]

** yes, besides these tubes are very reasonably priced.
*** our youngest graduated a bit ago from college …

My youngest just had her 1st...grandparenting is a great gig.

 

[UntilThen]

Don’t forget the 5751 (Raytheon: windmill getter); it too is 70 mu.

Oh definitely. I have to stick that tube in again.

 

[UntilThen]

** yes, besides these tubes are very reasonably priced.
*** our youngest graduated a bit ago from college …

The best years of our lives are when the 'kids' have graduated and you can indulge in your hobby.

 

[UntilThen]

Comparing Telefunken ECC801S and Brimar 6SL7. This is a difficult one to decide. They are both very good. Treble sweetness and extension are the attributes that stood out. Perhaps the Brimar 6SL7 has a bit more body.

 

[paramesh]

Let's talk about feet @Deleeh . You need upgraded Mundorf feet.

These are aircraft aluminium grade feet, salvage from a Boeing 747.

Gorgeous !!!... been getting live updates on this one as it runs in ... seems to be ' the one ' !!! ..
u having one hellva party out there with all of eric's amps !!.

 

[paramesh]

A side view.

silk trafos ?!!..

 

[UntilThen]

Gorgeous !!!... been getting live updates on this one as it runs in ... seems to be ' the one ' !!! ..
u having one hellva party out there with all of eric's amps !!.

Paramesh !

When have I been wrong when I say that a particular amp is good? You have to get on board this one. It's at the top of the chart now. Get the same specs as mine.

silk trafos ?!!..

Yes, silky smooth mate.

 

[Zachik]

** I am now looking at various 6F6G …

Yeah, I need to look for some: 6F6, 6V6, 6L6, 6W6 and 6Y6 tubes...
@UntilThen did I forget any? I assume my UltimatE would be a while (too many in front of me now )...

 

[UntilThen]

Don’t forget the 5751 (Raytheon: windmill getter); it too is 70 mu.

A quick comparison of :-

1. Raytheon 5751 Windmill
2. Telefunken ECC801S
3. Brimar 6SL7

The first 2 are very good. Imaging is pin point sharp. Treble has incredible sweetness. It's tighter.

I've a preference of the first 2 over 3.

Between 1 and 2, definitely 1. The Raytheon 5751 Windmill sound incredible.

 

[UntilThen]

Yeah, I need to look for some: 6F6, 6V6, 6L6, 6W6 and 6Y6 tubes...
@UntilThen did I forget any? I assume my UltimatE would be a while (too many in front of me now )...

You got the 6*6 right except 6L6 is quite different from the others. 6L6 is more in the category of EL34, 807. A very good power tube too.

There is one I haven't tried yet. It's the 6K6. Similar to the other 6*6.

The queue is rapidly getting longer. Book yourself in now.

 

[Zachik]

You got the 6*6 right except 6L6 is quite different from the others. 6L6 is more in the category of EL34, 807. A very good power tube too.

Quite different sound signature wise, or incompatible?

The queue is rapidly getting longer. Book yourself in now.

I know. Told Eric today I am interested. I will work out the details with him soon (trying somewhat different design from previous builds...)

 

[UntilThen]

Regarding 6J5 tubes.

Eric said that it can be used in Ultimate with this adapter - https://www.ebay.com.au/itm/204015057943?

That means you can also use GEC L63. The craziness has just gone up one notch.

However the adapter has a size of 60mm x 120mm. The current standard Mini UltimatE doesn't have this space. The Junior chassis may have this space, and of course the standard Gold (U-Amp) chassis is all good for this adapter.

Alternatively Eric can build 2 socket for 6J5 / L63 instead of 6SN7 but that means going with the bigger golden chassis. The chassis comes in silver and black as well. Or perhaps if you want, Eric can build in 2 x 6J5 sockets and one 6sn7 socket and have a switch to select between the 2.

 

[UntilThen]

Quite different sound signature wise, or incompatible?

6L6, El34, KT66, KT88 are compatible in Ultimate but not optimized. They still sound good though. Just ask @Leicachamp . He prefers KT66 over 6F6.

6L6 and 6Y6 are quite different tonally. It's like comparing KT66 with 6Y6.

 

[UntilThen]

Ok latest press release

If you want the utmost flexibility then consider the bigger golden, black or silver chassis. That is Nick's golden chassis. This is only for the bigger chassis. The stock standard chassis and the wooden chassis does not have space to do that.

Then you can have this option regarding driver tubes... see Eric's reply to me below.

Hi Matt,

Yes, with the U-Amp chassis, we can have three driver tube sockets installed.

The middle is the usual 6Sn7/6SL7, and the sides are 2 x 6J6 (or 6SQ7, and possible other Triodes with adapter in future ). with a switch to select between middle and sides... Like Zachi's WhispEr, choosing between the middle twin triodes or the 6P14Ps on the sides .

Wow...What a toy...

Thanks and Cheers

Eric