[2359glenn]

  Welcome back, Glenn.
 
I assume when you step on the scales, after coming back from Greece, the number is higher than when you left to go there.   

Not yet I have shirts that fit before I left not any more.
I will get on a scale at work afraid to maybe I beat last time 15lbs in 10 days.

 

[2359glenn]

 

Welcome back, Glenn.

I assume when you step on the scales, after coming back from Greece, the number is higher than when you left to go there.   

You mean he brought some tubes from Stavros house?

No tubes from Stavros even though he has one of the best collections I ever seen.

 

[gibosi]

  Hi Ken I am home buy the way.
Yes the 6AH4 is 1/2 of a 6BL7.
Another goodie is the 6CK4 is 1/2 a 6AS7 but sounds better.

 
Welcome back!
 
I noticed that the plate structure resembled the 6BL7 and the heater current of 0.75 A, one-half that of the 6BL7, and so I wondered if the 6AH4 might be one-half of a 6BL7. However, what threw me off is the amplification factor, only 8 for the 6AH4 but 15 for the 6BL7. I thought that each section of the 6BL7 had a mu of 15, but now I wonder if perhaps the mu of a double triode is simply the sum of the two sections?
 
Edit: Just checked the 6J5, one-half of a 6SN7, and it has a mu of 20, the same as the 6SN7. So for some reason the 6AH4 has one-half the mu of a 6BL7...

 

[rosgr63]

 
Big food, big family, big love. Good to see that Glenn and Stavros continue to perpetuate all that is family—be it amps, food, company or otherwise.

 
Hi Clayton, we hope you'll join us one day.
 

 
Not yet I have shirts that fit before I left not any more.
I will get on a scale at work afraid to maybe I beat last time 15lbs in 10 days.

 
Could be worst Glenn..........I'll have to try harder next time.
 

 
No tubes from Stavros even though he has one of the best collections I ever seen.

 
Still a long way to go.
There is no hope for tube addicts.

 

[alota]

i will put to run Glenn and Stavros.
The tube´s closet of Stavros is like Fort Knox.
and in the end: Portugal european champion!!!!!!

 

[whirlwind]

  i will put to run Glenn and Stavros.
The tube´s closet of Stavros is like Fort Knox.
and in the end: Portugal european champion!!!!!!

Ha ha....all of those tubes + an amp from Glenn = One helluva good time.

 

[rosgr63]

  i will put to run Glenn and Stavros.
The tube´s closet of Stavros is like Fort Knox.
and in the end: Portugal european champion!!!!!!

 
 
Well done Portugal.....

  Ha ha....all of those tubes + an amp from Glenn = One helluva good time.

 
Make that three............

 

[whirlwind]

 

Spoiler: Warning: Spoiler!

Quote:

  i will put to run Glenn and Stavros.
The tube´s closet of Stavros is like Fort Knox.
and in the end: Portugal european champion!!!!!!

 

 
 
Well done Portugal.....

  Ha ha....all of those tubes + an amp from Glenn = One helluva good time.

 
Make that three............

You lucky dog. 

 

[parbaked]

  Portugal european champion!!!!!!

Congratulations Aldo...always nice to see you here!

 

[alota]

  Congratulations Aldo...always nice to see you here!

thank you!!! good to see you!

 

[gibosi]

Glenn,
 
If one 6AS7 draws 100ma, it seems to me that four would draw 400ma. However, the tube rectifiers available to us can provide at most 350ma (3DG4). So I wonder... What kind of magic allows me to run two pairs of 6AS7 in your OTL?

 

[JazzVinyl]

Glenn,

If one 6AS7 draws 100ma, it seems to me that four would draw 400ma. However, the tube rectifiers available to us can provide at most 350ma (3DG4). So I wonder... What kind of magic allows me to run two pairs of 6AS7 in your OTL?

I seem to remember Glenn offering to make a tube socketed device that had the SS rectifiers in it, That should do it, 'eh?

You could then switch back and forth from Tube to SS rectification....

.

 

[2359glenn]

  Glenn,
 
If one 6AS7 draws 100ma, it seems to me that four would draw 400ma. However, the tube rectifiers available to us can provide at most 350ma (3DG4). So I wonder... What kind of magic allows me to run two pairs of 6AS7 in your OTL?

Hi Ken
There is one cathode resistor when the two tubes try to draw more current through this resistor the voltage drop across it increases. This raises the negative grid voltage
decreasing the current through the tubes. but the impedance of the output still goes down.

 

[2359glenn]

 

Glenn,

If one 6AS7 draws 100ma, it seems to me that four would draw 400ma. However, the tube rectifiers available to us can provide at most 350ma (3DG4). So I wonder... What kind of magic allows me to run two pairs of 6AS7 in your OTL?

I seem to remember Glenn offering to make a tube socketed device that had the SS rectifiers in it, That should do it, 'eh?

You could then switch back and forth from Tube to SS rectification....

.

Yes I can make SS rectifier substitutes made with HEXFRED rectifiers they are rated at 6 amp 1200 volts.

 

[Khragon]

 
Yes I can make SS rectifier substitutes made with HEXFRED rectifiers they are rated at 6 amp 1200 volts.

Wonder if there will be any changes in sound with HEXFRED, are these compatible with PY500A, can you sign me up for a pair too