National 6dj8's made in Holland

[Grooves]

Anyone familiar with National 6dj8's made in Holland? Sound? Similar to? I am familiar with National 6922's made in Japan.

 

[Mendel]

Anyone familiar with National 6dj8's made in Holland? Sound? Similar to? I am familiar with National 6922's made in Japan.

National was a rebrander. Just because it says "made in Holland" on the tube is no guarentee that it was. Can you see any etched codes in the glass near the bottom? This will tell you who made the tube and when. Look for the delta triangle symbol that denotes Amperex's Holland production.
Amperex made two main types of 6dj8s, the earlier "bugle boy " style with a riser, and the later "A-frame" type orange globe logo. Both are pretty good sounding tubes. Can you post a picture?

 

[Grooves]

They haven't arrived yet, but when they do I will post an image. I hope they're not total junk since I had to buy a whole lot to get a few.

 

[Grooves]

I don't see any etched data as you describe. Here are some images.

 

[Mendel]

Not 100% sure but I do not believe they are Amperex/Holland tubes. There is no date codes, and the structure of the tube does not have a riser or A frame below the getter. Not sure what they are but my best guess would be Tungsram or Tesla. How do they sound?
To do your own research, check out tubemongerlib.com or Tube-classics.com.
Enjoy the roll!

 

[Grooves]

I'll try the sites you mentioned and see what I can find. I have a pair in my PH7. So far they sound pretty decent. For less than $8/ea. a deal.
I have a pair of Tesla's and I'll have to do another comparison.

 

[BenjaminB]

The tubes you posted are exactly the same as the Matsushitas sold by Andy of Vintage Tube Services. He describes them to be warm sounding like Mullard tubes. Hope this helps.

 

[Grooves]

Yeah, I have some others just like them which are my fav. warmest tubes I have tubes. Hence, I took the chance. They are perfect for what I need them for. These turned out to be much less warm, and unfortunately not suited for my needs as much as I hoped for. I may give them another try since my LP-S has really seemed to hit it stride after 300 hrs. The LP-S forced to take a new look at my analog chain and I have started the journey towards a more neutral sound.