[rodama]

the earliest ecc82 I met,made in 1949.tung-sul black plates smoke bottle.most are grey plates.

Wow, that's really early made, I have some ken-rad supposed to be from 48-49, but cannot data these years for sure

[rodama]

Very interesting that "S" painted on glass, what can it mean?
I have this one with the same S, code △C mCN = Copenhagen plant march 1954

[adrianc]

Hi rodama, mine is exactly the same as yours but with a triangle D mCN copenhagen. 

[rodama]

Hi rodama, mine is exactly the same as yours but with a triangle D mCN copenhagen. 

Yours is april made 1954 Copenhagen one month later than mine.... I'm afraid the meaning of the "S" is something we will never know...

[adrianc]

The best Brimar ecc82 I've heard, CV491 3rd week of may 1953

Try these M8136

[rodama]

I've try Mullard CV4003/M8136 in it's late 70's version small o getter, good extension at top but a little bit harsh in my system.
I suposse the first version with double support square getter must be way better.

[rodama]

From left to right in pairs: Telefunken 5965, copper rods grey side strip, 6211 gold pin full silver strip, ecc802s half side strip. All three with same plates with same number of holes.

[adrianc]

I've try Mullard CV4003/M8136 in it's late 70's version small o getter, good extension at top but a little bit harsh in my system.
I suposse the first version with double support square getter must be way better.

Yes, the first version  double support square getter is a totally different valves but it is not the best in the M8136 family.

[adrianc]

From left to right in pairs: Telefunken 5965, copper rods grey side strip, 6211 gold pin full silver strip, ecc802s half side strip. All three with same plates with same number of holes.

The 5965 different to the other two are, cooper rod,grey strip and no bar on the top mica,am I right?

[rodama]

Not very visible in pic, but it have the strip at mica as the 6211 and ecc802s

[adrianc]

Not very visible in pic, but it have the strip at mica as the 6211 and ecc802s

I'm pretty sure one of the Telefunken ECC802 version have no horizon bar on top getter.

[rodama]

Telefunken made a lot of versions for each type of tube, also prothotypes extremely rare.... I still wonder about a Telefunken ecc83 1950-52 square getter white base....or ecc801 double o getter...

[adrianc]

Telefunken made a lot of versions for each type of tube, also prothotypes extremely rare.... I still wonder about a Telefunken ecc83 1950-52 square getter white base....or ecc801 double o getter...

I had some square getter Telefunken ecc82 ceramic base and shoot have some twin getter ecc801
Some of my ECC802

 

[FullRangeMan]

Yours is april made 1954 Copenhagen one month later than mine.... I'm afraid the meaning of the "S" is something we will never know...

Standard? week?

[rodama]

Not sure but I don't think it represents the week as it would be more logic and easy put another letter or number in the bottom code.
This is the first time I see this S in another tube but mine, both made in the same philips factory at same year and both labeled with german brands....maybe it represents a mark for this purpose of exported tubes to Germany from that factory during a very short period of few months...

[rodama]

I had some square getter Telefunken ecc82 ceramic base and shoot have some twin getter ecc801
Some of my ECC802

The ecc81 and ecc82 square getter ceramic base are rare but I have one ecc82 and seen here and there, never one ecc83 with that features...but it must exist, or not?

[adrianc]

It could be, as we already seen the 81 and 82 version,83 ? why not

[rodama]

in 22 years of constant research nor a single picture or reference about.... the hunt continues

[adrianc]

in 22 years of constant research nor a single picture or reference about.... the hunt continues

Difficult than ghost hunt

[FullRangeMan]

To me it mean Special or speciaal in Dutch mainly if this code isant in the books.