[busseysound]

Anyone tried ECC83's in the MJ2? I'm considering getting some RFT or Tungsram ones

 

[Guidostrunk]

Anyone tried ECC83's in the MJ2? I'm considering getting some RFT or Tungsram ones

I believe @TK16 has tried them before in the MJ2. Minimal volume use even on low gain. I'm still gonna try it myself though

The gain is 100 on them vs 60 on ecc81

 

[jonathan c]

I believe @TK16 has tried them before in the MJ2. Minimal volume use even on low gain. I'm still gonna try it myself though

The gain is 100 on them vs 60 on ecc81

I hope that the “noise floor” does not affect what you hear after it goes through 100x gain versus 60x gain…

 

[TK16]

I believe @TK16 has tried them before in the MJ2. Minimal volume use even on low gain. I'm still gonna try it myself though

The gain is 100 on them vs 60 on ecc81

Yeah I wouldn't splurge on big $ ECC83 without trying out the cheap stuff. I got some Tesla 6CC41 with same gain that runs happily in my dac.

 

[G0rt]

IDIC: Infinite Diversity in Infinite Combinations.

Another glorious election day in Virginia, and I'm playing a new NOS pair of RCA 5814A's in MJ2, shiny black, ridged, crimped plates, 3x mica, support rods, square getters, the works.

Tough, military 12AU7's. If the date codes make the sense I think they make, they're from April, 1960.

I also have a NOS pair of RCA/JRC in their original boxes that are clearly from 1959, internally identical, square gettered. And they all, to me, sound the same, in both MJ2 & VH2.

And by ''the same" I mean fabulous. Wow quiet, non microphonic and utterly neutral, like zero defect honest, transparent, clear.

And, in particular and especially, I find my planars (LCD-3f, Ananda, Sundara) and Teslas (DT-1990, DT177x) sound their actual best that way.

This morning, a fresh rip of Watercolors Blue and Ananda, with a M.A.D. Dashe Reserve Zinfandel, and I must say, I am gratified, citizen.

 

[busseysound]

IDIC: Infinite Diversity in Infinite Combinations.

Another glorious election day in Virginia, and I'm playing a new NOS pair of RCA 5814A's in MJ2, shiny black, ridged, crimped plates, 3x mica, support rods, square getters, the works.

Tough, military 12AU7's. If the date codes make the sense I think they make, they're from April, 1960.

I also have a NOS pair of RCA/JRC in their original boxes that are clearly from 1959, internally identical, square gettered. And they all, to me, sound the same, in both MJ2 & VH2.

And by ''the same" I mean fabulous. Wow quiet, non microphonic and utterly neutral, like zero defect honest, transparent, clear.

And, in particular and especially, I find my planars (LCD-3f, Ananda, Sundara) and Teslas (DT-1990, DT177x) sound their actual best that way.

This morning, a fresh rip of Watercolors Blue and Ananda, with a M.A.D. Dashe Reserve Zinfandel, and I must say, I am gratified, citizen.

I just recently got a pair of those exact same 5814A's minus the square getters (mine are the angled ones). Really, really excellent tube. I've been wow'd by the set of RFT ECC81's I recently received. They're way better than the pair I originally had even though they're identical in construction. I may have to look for the square getter 5814A's!

 

[G0rt]

I just recently got a pair of those exact same 5814A's minus the square getters (mine are the angled ones). Really, really excellent tube. I've been wow'd by the set of RFT ECC81's I recently received. They're way better than the pair I originally had even though they're identical in construction. I may have to look for the square getter 5814A's!

I have a set with D getters, and although pre-owned, they sound much the same.

MilSpec tubes are closely specified, although generally for radio vs audio applications, so I really wouldn't expect significant variations for similar construction.

These are all computer rated, with special care taken with the cathode chemistry, and so far in my experience with this and 5965 types, require little or no burn in to sound their best.

The 5965's have a little more gain, but need too much heater current to work in MJ2, although they work fine in VH2. Nowhere near as quiet and non microphonic, but very pleasant dynamics.

 

[watchnerd]

Just dusted off my Mjolnir 2 after 4 years in the closet.

I have a box of 14 different NOS tubes to try out.

After 'playing safe' (hey, after 4 years, you never now what might explode) and starting with an EH 6922.

Now playing with Philips SQ.

Where to go from here?

Aesthetically, I wish I had a matching DAC to stack. It looks lonely.

 

[watchnerd]

My RFT Folded Plate Foil Getter ECC81 arrived and they look absolutely mint! Out of interest do you know how you work out the dates for these?

It was half past September when the red phone rang. - H. Ellison

Brimar CV455's & RFT ECC81's both arrived today!

I see you guys buying ECC81.

Can those be used in the Mjolnir 2?

 

[watchnerd]

…your Mjolnir II does not have the capacitor modifications, right?….hmm….

Been away for years.

What's the capacitor mod?

 

[Rowethren]

I see you guys buying ECC81.

Can those be used in the Mjolnir 2?

Yep but you need an adapter, these are the ones I use https://pulsetubestore.com/products...uction-base-9-pin-b9a-noval-not-made-in-china

 

[watchnerd]

Yep but you need an adapter, these are the ones I use https://pulsetubestore.com/products/12axx-to-ecc88-adapter-plug-play-novib-©-1960s-nos-british-mcmurdo-phenolic-socket-on-top-plus-vibration-reduction-base-9-pin-b9a-noval-not-made-in-china

Thanks.

Maybe I'll just hold off on more tubes for now, given I have like 14 pairs...

 

[jonathan c]

Thanks.

Maybe I'll just hold off on more tubes for now, given I have like 14 pairs...

Just 14 pairs…you are far from being a tube Imelda Marcos!…

 

[watchnerd]

Just 14 pairs…you are far from being a tube Imelda Marcos!…

I miscounted. 14 pairs of NOS tubes.

16 pairs if you count the 2 pairs of current production EH & JJ.

 

[bcowen]

I miscounted. 14 pairs of NOS tubes.

16 pairs if you count the 2 pairs of current production EH & JJ.

Well, like you said.....14 pairs of good tubes.