[leftside]

Yes. The cross top mica is a remnant of the 1930’s Raytheon four pillar series tubes.

Also selling their tubes to third parties was common for Raytheon.
See this post by Mordy and my reply below.

https://www.head-fi.org/threads/the...c5-12j5-6p5-etc.934653/page-107#post-16474871


I applaud to @Xcalibur255 as he’s totally right about these Tung Sol being Raytheon tubes from the ‘40s. More rebranding going on.
Here’s more posts on this discussion.

https://www.head-fi.org/threads/the...6c5-12j5-6p5-etc.934653/page-92#post-16294978

Edit. Forgot an important part! Do look closely at the anode shape for both 1930’s and 1940s tubes discussed here. It will reveal the same form / press was used.

Edit:
Here’s some 6J5s anode plate details all Raytheon. Only one of these three is branded Raytheon.
Four pillar carbon non branded; WWII era carbon black VR67 Raytheon, 1948 shiny and more broad labeled as GEC L63 but a Raytheon.

Some good info there. I've been wondering if some of my "Marconi" 6J5G were in fact another brand.

 

[nwavesailor]

I have been wondering why my Langrex order stalled out 7 days ago in Langley UK after clearing for shipment.
I'll guess it is the Royal Mail strike days planned for December!

EDIT: My Langrex shipment of STC Brimar have finally arrived in LA so I should have them in a few days

 

[ColSaulTigh]

So the UPS Fairy showed up today with my latest Ambien purchase...

 

[triod750]

These are pretty good with some tubes. I have bought them, branded Brimar, for less than $4 without boxes. They were spare parts for a cinema and the box contained 50 pieces. Not all of them were still there...

 

[LobalWarming]

So the UPS Fairy showed up today with my latest Ambien purchase...

Very nice... but oh man... what sort of pricey dental work do you have you put under the pillow for the UPS fairy to stop by?

 

[ColSaulTigh]

Very nice... but oh man... what sort of pricey dental work do you have you put under the pillow for the UPS fairy to stop by?

I steal dentures from the local Old Folks Home.

 

[JTbbb]

Adapters are on the way! Wartime & just post war time, Hammersmith.

 

[nwavesailor]

I think you will really like these Hammersmith production valves in your Envy w/ Elrogs

 

[g0ldl10n]

Adapters are on the way! Wartime & just post war time, Hammersmith.

I have some Marconi Hammersmith beam tetrodes that I strap as triodes that sound spectacular. I really appreciate the SQ from European tubes, and all Marconis that ive heard have sounded very, very good!

I bet these are gonna sound great, nice pick up!

 

[JTbbb]

I think you will really like these Hammersmith production valves in your Envy w/ Elrogs

All bought separately and with identical internals. Can’t wait to try them. In my modded Crack too!

 

[nwavesailor]

You are wise, patient and no doubt saved a ton of $$$ as well as insuring that these are pretty much the same tube!
I do not have your patience and bought quads and pairs of the 1950's Hammersmith 6J5G.
Not cheap but all tested as advertised and sound fantastic.

they

 

[JTbbb]

You are wise, patient and no doubt saved a ton of $$$ as well as insuring that these are pretty much the same tube!
I do not have your patience and bought quads and pairs of the 1950's Hammersmith 6J5G.
Not cheap but all tested as advertised and sound fantastic.


they

I paid £50 each for three of them and £60 for the Marconi. Probably somewhere near market value I guess!

Edit: yours look superb!

 

[CaptainFantastic]

I paid £50 each for three of them and £60 for the Marconi. Probably somewhere near market value I guess!

Edit: yours look superb!

You are lucky being in the UK in this respect. It seems like all sellers of these tubes are in the UK, which makes sense since that's where they were produced. But I remember hating seeing these good deals and then paying another 25-30 euros for the import fees.

 

[nwavesailor]

A new favorite 6J5G, STC Brimar. As strong testing as any quad of 6J5G I have ever bought.



Very detailed and not what you may tend to think of with some 'polite' British tubes. @Xcalibur255 was right on the mark with his take on this version.
It's right up there with the TS and GEC and Visseaux ST's

 

[LobalWarming]

Yes, those STC/Brimars are beauties... picked up a pair a few years ago and they're still in my Top 5 - with the other dozen 6J5s - it's so crowded at the top.