[JazzVinyl]

Tonight's Glow:

I sure hope everyone is practicing "Safe Pandemic" and are safe & well...

 

[maxpudding]

Tonight's Glow:




I sure hope everyone is practicing "Safe Pandemic" and are safe & well...

You too, Bruce! Keep the photos coming

 

[chrisdrop]

Hi cd,
I used the Mullard EL32 extensively and I had the same query as you have. They seem to fill out the sound but not always - it depends on the other driver tube(s).
But the best thing about the EL32 tubes is that you now have the correct adapters for the 6J7 tubes.
Try a pair of K-R, RCA, or GE 6J7 and they will leave the EL32 relegated to the dust bin when combined with a K-R 6N7.

I didn't appreciate that at all. Thank you. I was going to have Deyan make a pair of 6J7 adapters, but that seems unneeded. I guess it is time to get a pair of those Visseaux metal 6J7s...

For 6N7s, it looks like I'll need an adapter for those (6N7, 6N7G, 6N7GT, ECC31 > ECC31 to 6SN7 adapter (from Deyan)).

I guess @Zachik's tube compatibility sheet (for which I am thankful, and have a local clone of) can add (or a comment):
Before: (EL32 > Deyan's custom adapters for EL32 to c3g)
After: (EL32, 6J7 > Deyan's custom adapters for EL32 to c3g)

Is that right?

I was just going into the tube cupboard and I also have pairs of EL11 and EL39 tubes (and adapters from the Euforia in these pictures, which I don't think are appropriate to use in the GOTL). Thanks again to Zachik's tube sheet, I can see (EL11, EL12N, EL13 > Deyan's custom adapters for EL11 to c3g). EL39s are more of a rare tube it seems. Not sure if there is a positive expected use for them in the Glenn amps (presumably via c3g slots).




Looking at other adapters in the cupboard, I nabbed EL8s with adapters from @Monsterzero a few months back. (EL8, EL3N, EL6 > Deyan's custom adapters for EL3N to c3g). Is anyone using EL3Ns in these c3g slots? I think some other Glenn amps use these valves so thought perhaps they were worth a go?

Be well all!

 

[whirlwind]

I didn't appreciate that at all. Thank you. I was going to have Deyan make a pair of 6J7 adapters, but that seems unneeded. I guess it is time to get a pair of those Visseaux metal 6J7s...

For 6N7s, it looks like I'll need an adapter for those (6N7, 6N7G, 6N7GT, ECC31 > ECC31 to 6SN7 adapter (from Deyan)).

I guess @Zachik's tube compatibility sheet (for which I am thankful, and have a local clone of) can add (or a comment):
Before: (EL32 > Deyan's custom adapters for EL32 to c3g)
After: (EL32, 6J7 > Deyan's custom adapters for EL32 to c3g)

Is that right?

I was just going into the tube cupboard and I also have pairs of EL11 and EL39 tubes (and adapters from the Euforia in these pictures, which I don't think are appropriate to use in the GOTL). Thanks again to Zachik's tube sheet, I can see (EL11, EL12N, EL13 > Deyan's custom adapters for EL11 to c3g). EL39s are more of a rare tube it seems. Not sure if there is a positive expected use for them in the Glenn amps (presumably via c3g slots).




Looking at other adapters in the cupboard, I nabbed EL8s with adapters from @Monsterzero a few months back. (EL8, EL3N, EL6 > Deyan's custom adapters for EL3N to c3g). Is anyone using EL3Ns in these c3g slots? I think some other Glenn amps use these valves so thought perhaps they were worth a go?

Be well all!

The EL3N tubes sound great, I have only heard them in my GOTL from the single SN7 socket with the adapter, they sound great that way.
In the EL3N amp they have more presence, but from the C3g sockets in your amp, that may be a different story.
I look forward to your impressions if you try them.

 

[JazzVinyl]

I didn't appreciate that at all. Thank you. I was going to have Deyan make a pair of 6J7 adapters, but that seems unneeded. I guess it is time to get a pair of those Visseaux metal 6J7s...

For 6N7s, it looks like I'll need an adapter for those (6N7, 6N7G, 6N7GT, ECC31 > ECC31 to 6SN7 adapter (from Deyan)).

I guess @Zachik's tube compatibility sheet (for which I am thankful, and have a local clone of) can add (or a comment):
Before: (EL32 > Deyan's custom adapters for EL32 to c3g)
After: (EL32, 6J7 > Deyan's custom adapters for EL32 to c3g)

Is that right?

Hello ChrisDrop...

Yes, your EL32 adapters also work for 6J7!

I do not have the EL11 or EL39, @mordy liked EL11 in GOTL, he knows the adapter situation.

Not sure about EL39 and the GOTL.

Cheers! And stay safe!

 

[gibosi]

I didn't appreciate that at all. Thank you. I was going to have Deyan make a pair of 6J7 adapters, but that seems unneeded. I guess it is time to get a pair of those Visseaux metal 6J7s...

For 6N7s, it looks like I'll need an adapter for those (6N7, 6N7G, 6N7GT, ECC31 > ECC31 to 6SN7 adapter (from Deyan)).

I guess @Zachik's tube compatibility sheet (for which I am thankful, and have a local clone of) can add (or a comment):
Before: (EL32 > Deyan's custom adapters for EL32 to c3g)
After: (EL32, 6J7 > Deyan's custom adapters for EL32 to c3g)

Is that right?

I was just going into the tube cupboard and I also have pairs of EL11 and EL39 tubes (and adapters from the Euforia in these pictures, which I don't think are appropriate to use in the GOTL). Thanks again to Zachik's tube sheet, I can see (EL11, EL12N, EL13 > Deyan's custom adapters for EL11 to c3g). EL39s are more of a rare tube it seems. Not sure if there is a positive expected use for them in the Glenn amps (presumably via c3g slots).




Looking at other adapters in the cupboard, I nabbed EL8s with adapters from @Monsterzero a few months back. (EL8, EL3N, EL6 > Deyan's custom adapters for EL3N to c3g). Is anyone using EL3Ns in these c3g slots? I think some other Glenn amps use these valves so thought perhaps they were worth a go?

Be well all!

Yes I often run EL3N via adapters in the C3g sockets. And they are one of my favorite drivers.

 

[GDuss]

Is anyone using EL3Ns in these c3g slots? I think some other Glenn amps use these valves so thought perhaps they were worth a go?

I got some EL3N's and adapters for the C3g slots from @L0rdGwyn about 6 months ago and admittedly haven't even tried them yet. That's when you know you have too many tubes to deal with .

I've spent all my time in those months with one of several combinations: 1) EL32's in the C3g slots, with 6J5/6C5/12J5's in the SN7 slot; 2) 6J5/6C5/12J5's in the SN7 slot and nothing in the C3g slot (except for a few attempts at using actual C3g's there, but I got C3g'd and then stopped); or 3) 6J7's in the C3g slots and a 6N7 in the SN7 slot.

Wow, if any "normal" person read that last sentence they would wonder what language we are speaking.

Work has been insanely busy lately, which is surprising given I haven't left the house in almost a week, except to go outside for running/cycling etc. It's as if people feel the need to go overboard with online meetings to compensate for not having meetings in person (I am having way more meetings than normal since shelter-at-home started). Meetings all day means other work has to get done at night. So my listening time has been extremely limited. But the last 2 or 3 sessions have been with only some RCA 6J5 tubes (meatball logos) and nothing in the C3g slots (a 1960's Sylvania 6080 quad for powers). Prior to that it had been a few weeks of a KR 6N7 and RCA 6J7's. Now I'm not sure which combo I like better as I was surprised by how much I liked going back to just the 6J5's alone. The good news is that they all sound good, which everyone here already knows is a strength of the GOTL. I feel fortunate to have this embarrassment of tube riches at a time like this. Now I just need to find more time to use them.

Hope all of you are healthy and that the same is true for your families/friends/colleagues.

 

[GDuss]

I didn't appreciate that at all. Thank you. I was going to have Deyan make a pair of 6J7 adapters, but that seems unneeded. I guess it is time to get a pair of those Visseaux metal 6J7s...

For 6N7s, it looks like I'll need an adapter for those (6N7, 6N7G, 6N7GT, ECC31 > ECC31 to 6SN7 adapter (from Deyan)).

I guess @Zachik's tube compatibility sheet (for which I am thankful, and have a local clone of) can add (or a comment):
Before: (EL32 > Deyan's custom adapters for EL32 to c3g)
After: (EL32, 6J7 > Deyan's custom adapters for EL32 to c3g)

I should add that I am using EL32/6J7 to C3g and 6N7 to SN7 adapters from xulingmrs as well as 6J5 to SN7 adapters from Deyan. The adapters are all performing marvelously.

 

[Zachik]

I guess @Zachik's tube compatibility sheet (for which I am thankful, and have a local clone of) can add (or a comment):
Before: (EL32 > Deyan's custom adapters for EL32 to c3g)
After: (EL32, 6J7 > Deyan's custom adapters for EL32 to c3g)

Is that right?

You are most welcome my friend!

Yes, your EL32 adapters also work for 6J7!

Added to my table, per @chrisdrop suggestion, and @JazzVinyl confirmation.
(first update since Feb. 14... I guess the table is pretty stable by now )

 

[whirlwind]

Yes I often run EL3N via adapters in the C3g sockets. And they are one of my favorite drivers.

The dynamics and slam of the 5998 tubes to go with the big but warm sound of EL3N with that Cossor ...that should be a beautiful sound

I may have to eventually get these adapters for my GOTL

 

[JazzVinyl]

I think a lot of the "My Favorite Drivers" has to do with your cans. I have never been favorable to EL3N in the GOTL, but many say they are great, so must be my 2 sets of cans do not manage to make the most of them.

I have been doing some major tube rolling the last few nights and with my old Senn 580's - I am staying with 6J7 in C3g sockets and a 6N7 in the sn7 socket as "best". Have been using quad of 6080 for many weeks but tempted now to try my 5998 pair, instead.

Stay tuned

Will also say that many tube a roll sounds awful darned good!! A testament to Glenn's superb design!

And as always, hope everyone is staying safe and well...Looking forward to "normal life" returning, one day...

 

[chrisdrop]

It seems there is one more adapter to go; 6N7 to 6SN7

Thank you all for the helpful and cheerful comments.

I've begun rotating through (6C5, 6J5, 12J5)s with the EL32s after @mordy's comments.

.. They seem to fill out the sound but not always - it depends on the other driver tube(s).

Presently 2x Hytron 6C5s. I just started on these for the first time since Christmas. So far, so good.:



Maybe at some point, I'll change outputs, but for a few months now, I really like the Bendix+RCA 6080 combo.

Finally, I am also really enjoying the new SW1X DAC for the past several weeks. I am thankful that happened before lockdown.

Listing to (possibly posted before, but can't help listening):

 

[Karnicopia]

I find myself turning down the lights a lot when listening now.

 

[dminches]

Anyone heard from Glenn recently? Just hoping his is doing ok.

 

[whirlwind]

Anyone heard from Glenn recently? Just hoping his is doing ok.

Last weekend he was wondering if he would have to work on Monday...have not heard anything since.