[Hardwired]

It's been 30 minutes and nothing but crickets chirping so I'l take a stab at it.
 
VR6 45E4
 
Using the format TTC FYMW
where
TT is the tube type,
C is the change or batch code,
F is the factory code,
Y is the year of manufacture,
M is the month of manufacture
W is the week of manufacture
 
VR = E188CC/7308
6 = batch 6
 
4 = Venolanda S.A., Venezuela
5 = 1965
E = May
4 = 4th week of May
 
How'd I do?
 
http://frank.pocnet.net/other/Philips/PhilipsCodeListAB.pdf

 

[spyder1]

Hardwired,
 
You have earned a GOLD Star, and a A+!

 

[Guidostrunk]

VR= E188CC
6=batch number
Delta5E4= 1965/4th week of April.

Edit: May is correct

Looks like the same engraved codes on both tubes: VR6 45E4. Now someone work their tarot card readings and interpret those.

 

[OctaviaeZ]

If anyone's looking for a Lyr 1 just put one up for sale! It'll come with some nice Amperex orange globes 

 

[billerb1]

VR= E188CC
6=batch number
Delta5E4= 1965/4th week of April.

Edit: May is correct

 
So much for Venezuela's one hour in the sun.

 

[Hardwired]

VR= E188CC
6=batch number
Delta5E4= 1965/4th week of April.

Edit: May is correct

 
Yep, that's a delta, not a 4. Sorry about that. Which would be Philips, Copenhagen. I was wondering about the Venezuela connection.

 

[billerb1]

Delta -->  Heerlen, Holland

 

[ThurstonX]

Loose lips sink ships. You killed me with that. One of my favorite lines ever. Had a Loose Lips poster up in my room all of high school.
You are a prophet.

 
The Flaming Lips....
 
that's all I got.  You want some prophecy, listen to In A Priest Driven Ambulance (With Silver Sunshine Stares)

 

[Hardwired]

  Delta -->  Heerlen, Holland

 
So there are 2 different deltas?  Yeah, looking through the document one is a normal isosceles triangle which is the shape I was taught in math class as a delta, but there's another one (that looks like a 4 that's a triangle squashed over on it's side.  Ok, no wonder tube codes are black magic.Add in Russian Cyrillic characters and you have some fun going on, with bad light and barely discernible scratches on glass.
 
So I got everything right except the factory location, which is the most important part. I hope I didn't cause an internet panic looking for Venezuelan tubes.

 

[billerb1]

   
So there are 2 different deltas?  Yeah, looking through the document one is a normal isosceles triangle which is the shape I was taught in math class as a delta, but there's another one (that looks like a 4 that's a triangle squashed over on it's side.  Ok, no wonder tube codes are black magic.Add in Russian Cyrillic characters and you have some fun going on, with bad light and barely discernible scratches on glass.
 
So I got everything right except the factory location, which is the most important part. I hope I didn't cause an internet panic looking for Venezuelan tubes.

 
I understand that as of 9:00AM tomorrow, Brent Jessee will be selling Venezuelan 6922's for $500 a pop.
Your South American brothers salute you, Hardwired.

 

[oAmadeuso]

   
Looks like the same engraved codes on both tubes: VR6 45E4. Now someone work their tarot card readings and interpret those.

Cheers! Not good on reading them myself but looks like the results have come in over night.
So that first "4" is actually a right angle triangle? for Heerlen?

 

[kolkoo]

Cheers! Not good on reading them myself but looks like the results have come in over night.
So that first "4" is actually a right angle triangle? for Heerlen?

Yep some sellers even write 4 in their auctions to indicate Heerlen

 

[nightsky87]

When it comes to Blackburn ECC88 Mullards, is there a type of tube that's more sought after? The ones I have are yellow label GA2 ones with a single post halo getter so I'm wondering how it differs from the GA0 A-frame variants.

 

[kolkoo]

I've got a Valvo CCa white print quad coming to me now, won them for about 260$ + shipping, pretty decent price considering it's 4 tubes and the resale value is good. Will compare them to the rest of the awesome tubes I have and will report back. Still hunting for some Yellows, perhaps some day

 

[billerb1]

News Update: Brent Jessee sold out of all Venezuelan 6922 variants. That is all.