[aloizio]

------------------------------------
[size=large]6N3P[/size]
Alternative tubes:
[size=medium]

1. 2C51
2. 6385
3. ECC42
4. 5670
5. 396A
6. E7102

[/size]
------------------------------------
[size=large]6N24P[/size]
Alternative tubes:
[size=medium]

1. 6N14P
2. 6FC7
3. ECC84
4. ECC89
5. E7019

[/size]
------------------------------------

 

[TURBO]

Million thanks. Exactly what I was looking for. Should work on the original Lunch box?

TURBO

 

[aloizio]

Yes, it is very similar tubes.

 

[bebanovich]

The nice thing is that, while NOS tubes aren't always easy to find for the LB, they can be found cheap and still sound quite good. I guess you could always break the cheap rule by hunting down a Bendix for the driver tube but upgraditus hasn't hit me this hard yet.

I think you'll be hard-pressed to spend more than $6 to replace the 6N24P but I'm not an expert by any means and could be wrong about this.

 

[aloizio]

Criterion at a choice tubes:
- quality of a sound
- presence of analogues
- availability
These tubes in the USA and Russia had military purpose and were issued with high quality.

(Russian 6N24P are issued at a factory in Kaluga (Russia), 6N3P - very accessible tube)