Mike, Some Mullard 6V6G Coke Bottle Tubes

[Oatie]

Mike or any other Tube Pro who knows about old stock,

I have some old Mullard 6V6G Coke Bottle Tubes, and some GEC
that I will photograph later.

But I wanted to know about these tubes, are they 1950s and maybe 12 watts? This shield Logo is supposed to be the late 50s early 60s?

Mike, Take me to school.;..

I have a special Tweed Champ Set-Up to test tubes, it has new Sprague Atom Filter caps and two NOS PIO Astron .022/400v coupling caps. I run a Mullard 12AX7
in V1 or a 5751. I use the Raytheon 6087 rectifier.

These old Mullard seem to make deep Bass and overall good sounding;.
I notice more tone change with the 12AX7 tube vs. the 6V6.

These are the tone caps I use in my Tube testing tweed Champ, these are very good as you can really hear the difference in how the different tubes sound.

 

[lang.murphy]

Man, o' man! How do you unearth such beauties?

 

[KindaFuzzy]

Wicked cool, I've got a single old Marconi 6v6g that kicks ass too, only comes out for special occasions.

 

[Blue Strat]

Rumor has it that Mullard never actually made 6V6s. From the little I can see of the top micas they might actually be Mazdas. There was quite a bit of relabeling that went on in Europe as well as the US.

40's to 50's at latest. Definitely 12 watts.

 

[zenas]

Relabeling ? Next you'll tell us Mesa doesn't make tubes.

 

[Oatie]

Thanks Mike,

That makes perfect sense, these have the double getter and the flashing is near perfect with strong readings on both tubes, I have a Hickok 539C machine and these are a good set.

I'm looking for the GEC set, they have the brown boxes with the horse-hair packing stuffing, looks like that triangle or Military looking symbol on the Box if I remember correctly. They have those GEC stickers on the glass. I have not powered them up yet.

Thanks Mike, you really know your business.

I found another tube that looks like it has 6 filaments connection to a ring-tree at the tip, It says something like Duralast or Duralite #110 Engraved on the base.


I have never seen another one like it and nothing on the internet when I type in all the info on the tube itself. I think that tube is locked in the safe I need to check.

Thanks for your Opinion, It's fun to learn what some of this old stuff is.,

 

[Timbre Wolf]

Rumor has it that Mullard never actually made 6V6s.

Yes - Mullard never listed 6V6 types in their tube manuals, which indicates they did not produce them.

Those are nice looking tubes though.

- Thom

 

[Britishampfan]

They look like relabeled Marconi`s

 

[Timbre Wolf]

They look like relabeled Marconi`s

Not Canadian. British GEC/OSRAM, probably.

- T

 

[Britishampfan]

I guess that Glass that reminded me of Marconi`s that odd shape.