[Zachik]

not having to worry about the side contact bases

Question to @whirlwind and others who have GEL3N experience:
Are the side contacts a reason for concern, if upgrading the sockets to Yamamoto and NOT planning on tube rolling with this beauty?

 

[Deyan]

Speaking of adapters, on the chance that I am not the only one running AZ4 and AZ12 rectifiers in a Glenn amp, Deyan can make a very nice adapter to take advantage of the amp's native support for the 3DG4. That is, there is no need to worry about power resisters to reduce 5 volts down to 4.

That and I have a prototype EL11 to EL3 on the way made on request by @UntilThen
I'll upload a picture of the concept in about an hour.

 

[rosgr63]

@rosgr63 sent me a mouse ear. It sounds good,but it wont make you want to take out your BGRP.

Actually this humble type is on of my favourite 6SN7's.
The black plates are the best sounding ones.

 

[Deyan]

New adapter day ( again )
EL11 to EL3

Don't mind the broken socket on top, it's only a test fit.

 

[L0rdGwyn]

Giving the 7802s a break and trying a new roll, Sylvania 6BL7GT T-plate. These are some good sounding tubes! But then I ask myself, aren't they all in the GOTL? Just different flavors of good/great/amazing/life-altering.

The MOV L63 are sticking around. Definitely one of my best drivers, haven't done a head-to-head with the other heavyweight 6J5s yet, looking forward to it at some point. The Visseaux 6J5G might make them sweat a little bit.

 

[leftside]

Anyway I did a google and I saw @leftside have so many Triotron ECC32, ECC33, ECC34 and GZ34 metal base.

Triotron was the brand name for tubes manufactured by Radiowerk E. Schrack, Vienna, starting in about 1926. However, in 1939, Philips acquired control of Schrack and Triotron and changed the name to Wiener Radio Works (WIRAG).

Google is pretty sketchy, but it appears that Philips continued to use the Triotron brand in Britain, but only as a distributor, not a manufacturer. So there is no way to know for sure who manufactured these later Triotron tubes, but since the brand was owned by Philips, I think it is likely that those EL11 were manufactured by a Philips subsidiary. But until you have them in your hands and examine them closely, you won't know for sure.

All of my Triotron branded tubes are Mullards. @gibosi covers the company well. Further details can be found here:
www.cast.uni-linz.ac.at/Department/Publications/2015/2015_1.doc

 

[leftside]

The MOV L63 are sticking around. Definitely one of my best drivers, haven't done a head-to-head with the other heavyweight 6J5s yet, looking forward to it at some point. The Visseaux 6J5G might make them sweat a little bit.

Give them a few hours, they might calm down. They are very old tubes.

 

[whirlwind]

Question to @whirlwind and others who have GEL3N experience:
Are the side contacts a reason for concern, if upgrading the sockets to Yamamoto and NOT planning on tube rolling with this beauty?

No worries at all as long as you get the Yamamoto sockets...I would in no way get the Chinese sockets...I don't think Glenn will even use anything but Yamamoto in the GEL3N amp.

Speaking of adapters, Deyan's adapters arrived today....man what a killer job you did on these Deyan.... thanks much sir!
Great snug fit and they sit nice and low on the chassis.....first round of tubes should be here next week some time.
Mullard EL34 XF2's single top getters from 1973.

 

[UntilThen]

Triotron was the brand name for tubes manufactured by Radiowerk E. Schrack, Vienna, starting in about 1926. However, in 1939, Philips acquired control of Schrack and Triotron and changed the name to Wiener Radio Works (WIRAG).

Google is pretty sketchy, but it appears that Philips continued to use the Triotron brand in Britain, but only as a distributor, not a manufacturer. So there is no way to know for sure who manufactured these later Triotron tubes, but since the brand was owned by Philips, I think it is likely that those EL11 were manufactured by a Philips subsidiary. But until you have them in your hands and examine them closely, you won't know for sure.

Thanks Ken. Always good to know the history.

 

[UntilThen]

New adapter day ( again )
EL11 to EL3

Deyan, great work as usual. You're a master of the craft.

It's look like I'm going with Y8A Pin tube sockets for the EL11, etc. So later on, I might need EL3N to EL11 adapters and EL34 to EL11 adapters.... if I feel the need to experiment.

However, I'm sure you'll find some interest in these EL11 to EL3 adapters amongst the owners of GEL3N amps.

 

[UntilThen]

Speaking of adapters, Deyan's adapters arrived today....man what a killer job you did on these Deyan.... thanks much sir!
Great snug fit and they sit nice and low on the chassis.....first round of tubes should be here next week some time.
Mullard EL34 XF2's single top getters from 1973.

Beautiful. Even a fussy pot like me can accept that.

Waiting to hear how the Mullard EL34 will sound in your amp.

 

[Deyan]

EL3 to EL11 might be a bit tricky but I think I have an idea.

 

[whirlwind]

Speaking of adapters, on the chance that I am not the only one running AZ4 and AZ12 rectifiers in a Glenn amp, Deyan can make a very nice adapter to take advantage of the amp's native support for the 3DG4. That is, there is no need to worry about power resisters to reduce 5 volts down to 4.

I had Deyan make me one of these adapters also...making it to the 3DG4 and the amps native support makes my mind much more at ease

 

[whirlwind]

Beautiful. Even a fussy pot like me can accept that.

Waiting to hear how the Mullard EL34 will sound in your amp.

I can be a fussy old pot also.....my wife can VERIFY!

 

[UntilThen]

I can be a fussy old pot also.....my wife can VERIFY!

You know Joe, that EL34 to EL3N adapter is a new dawn for your GEL3N amp.