[Clayton SF]

Where is Brenda? I need to add it to my SF list.

 
BRENDA'S
 

652 Polk St @ Eddy
San Francisco, CA 94102
brendas@frenchsoulfood.com
415.345.8100​

 
 
Breakfast
Lunch
In Between
Dinner

 

[Neogeo333]

Hey Glenn, what is the difference between the 5998 and the 6336?
Just purchased some 5998's, 6336's are available so I am curious. 
thanks

If I remember correctly the 5998 is a 6as7 on steroid. A 6336A/B, get either 6336a or 6336b, 6336 are bad, are basically two 6as7 in parallel. 6as7 is 6.3v and 2.5a while a 6336 is 6.3v and 5a. Hope im right.

 

[2359glenn]

  Hey Glenn, what is the difference between the 5998 and the 6336?
Just purchased some 5998's, 6336's are available so I am curious. 
thanks

 
 

If I remember correctly the 5998 is a 6as7 on steroid. A 6336A/B, get either 6336a or 6336b, 6336 are bad, are basically two 6as7 in parallel. 6as7 is 6.3v and 2.5a while a 6336 is 6.3v and 5a. Hope im right.

Richard George is correct the 5998 may sound better for high impedance phones. If you have a lower impedance phone get some 6336s for the 
drive power.

 

[wotts]

If were to use a 6336 in my OTL, Then I would need to be in the 5998 position then?

 

[2359glenn]

If were to use a 6336 in my OTL, Then I would need to be in the 5998 position then?

It will still work it would be better with the switch but it will still work and drive lower impedance phones better.

 

[wotts]

 
It will still work it would be better with the switch but it will still work and drive lower impedance phones better.

 
I have wanted to try my W3000ANV on the OTL. I'll take a look at a set of the 6336 tubes to try. I think I have the 3DG4/6F8G/5998 combo running now. I have to look when I get home.

 

[2359glenn]

   
I have wanted to try my W3000ANV on the OTL. I'll take a look at a set of the 6336 tubes to try. I think I have the 3DG4/6F8G/5998 combo running now. I have to look when I get home.

What is the impedance of the W3000ANV  ???

 

[wotts]

I think it is 32ohm or 40ohm.

 

[2359glenn]

  I think it is 32ohm or 40ohm.

That might be to low for the 5998.
What are you using to drive these phones now ???

 

[jc9394]

I think it is 32ohm or 40ohm.

Try 6080 or 6AS7G, I do not like 6336 driving AD2000.

 

[wotts]

 
That might be to low for the 5998.
What are you using to drive these phones now ???

 
Usually the SX-1980 with the -20db muting enabled. I sold my one push-pull amp (MP-301 Mk2), but that was before I owned the cans.
 

Try 6080 or 6AS7G, I do not like 6336 driving AD2000.

 
I have a few 6AS7 around. I'll try those and look for some 6080 to try.

 

[dminches]

   
I have wanted to try my W3000ANV on the OTL. I'll take a look at a set of the 6336 tubes to try. I think I have the 3DG4/6F8G/5998 combo running now. I have to look when I get home.

 
I found the W3000ANVs to be noisy with the OTL.  They are not a good match.

 

[wotts]

They were noisy on the Valhalla too.

 

[Skylab]

The W3000ANV are both low impedance and high sensitivity. Definitely not an ideal pairing for an OTL tube amp.

 

[Silent One]

After moving 3.75 miles NE to another residence, even the 2359glenn OTL Silver Hawk decided to move from its prior position inside the rack. Now front and center. 

 

 
 
Regarding my current audio adventure using ZERO Autoformers, it's over. I yanked 'em this evening and moved them over to the Tea room to await return shipping. The ZEROs are ideal for my 6 Ohm KEF Coda 9's but less than ideal for the 50 Ohm power hungry, inefficient and demanding HiFiMAN HE-6. 

 
 
 
 
I really like what Glenn did for Clayton SF - made custom pigtails with integrated resistors.... a really clean fabrication!