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2359glenn | studio - Page 761

post #11401 of 14390
Quote:
Originally Posted by 2359glenn View Post
 
Quote:
Originally Posted by gibosi View Post
 

Yes, I know that C3g has a 6.3 heater, but... is the C3g tied to the 6/12/25 switch? Or does it bypass this switch and connected directly to a 6.3V voltage source?


The C3g is tied to only 6.3 volts not to the SN7 switch so the switch can be left in any position when using C3gs.

Nice to know, I put this in my notes, along with many other notes that I took going thru these 740 pages of this thread  :smile:.....

 

Which can leave one's mouth watering over some very wonderful looking food, to say the least.

post #11402 of 14390
Quote:
Originally Posted by Ultrainferno View Post
 
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Originally Posted by MoatsArt View Post

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Originally Posted by MoatsArt View Post

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Originally Posted by MoatsArt View Post
 

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Someone has a serious posting issue :cool:


Let it go Ultra

post #11403 of 14390
Quote:
Originally Posted by whirlwind View Post
 

Nice to know, I put this in my notes, along with many other notes that I took going thru these 740 pages of this thread  :smile:.....

 

Some more stuff to put in your notes (these were communicated over mail to me by Glenn) :

 

  • You can use 6336 tubes with 422A ,3DG4  5AU4  5AW4, GZ37 rectifiers to drive low impd HP’s on Glenn’s OTL
  • The 6336 can be used in ether switch position, so use it in the position that sounds best (my amp has 5998 & 6AS7 switch)
  • The HP’s should be unplugged when switching the 6AS7 / 5998 switch
  • Also when using 5998’s turn the amp on wait 5 minutes then plug in the headphones. 5998’s sometimes arc over when first turned on, after 5 min they are fine.

Edited by punit - 4/15/15 at 12:44am
post #11404 of 14390
Quote:
Originally Posted by 2359glenn View Post
 


Let it go Ultra

 

Sorry Glenn, I have no idea what's happening. I just noticed he's doing that too on other threads. I'll go back to work now :o

post #11405 of 14390
Quote:
Originally Posted by Neogeo333 View Post
 

What a coincidence, my first British speaker arrived today.  A pair of Jordan Watts MK2 drivers.  Hope their as good as my Coral Betas.  

I never heard the Jordan Watts or the Coral Betas.

I do have some time with the old Jordan JX92 in an elegant, slender TL cabinet. Sounded really good!

Let us know what cabinets you use and how it sounds...with pics!

 

Edit: I forgot to mention that Joe Akroyd (Royd Audio) also worked at Goodmans in the 1960s, probably just after Ted Jordan, but their paths definitely crossed!


Edited by parbaked - 4/14/15 at 9:32am
post #11406 of 14390
Quote:
Originally Posted by Ultrainferno View Post
Someone has a serious posting issue :cool:

 

Period!

post #11407 of 14390

Clayton you are so lucky!!!!!!!!!

 

George nice to know you are doing well, not long before you go to NY, congratulations for your new speakers.

 

Steven, I've been on this game way too long.

The biggest enjoyment I ever got out of this hobby is making good friends.

 

Glenn I bet you GRETA sound fine, I will have it up and running soon.

 

Currently running my GR Super 10 with 6BL7's driving Grado SR325is......who says low impedance is no good with them????????

post #11408 of 14390
Quote:
Originally Posted by punit View Post
 

Some more stuff to put in your notes (these were communicated over mail to me by Glenn) :

 

  • You can use 6336 tubes with 422A ,3DG4  5AU4  5AW4, GZ37 rectifiers to dive low impd HP’s on Glenn’s OTL
  • The 6336 can be used in ether switch position, so use it in the position that sounds best (my amp has 5998 & 6AS7 switch)
  • The HP’s should be unplugged when switching the 6AS7 / 5998 switch
  • Also when using 5998’s turn the amp on wait 5 minutes then plug in the headphones. 5998’s sometimes arc over when first turned on, after 5 min they are fine.

 

Very good point Punit.,

Can't be too careful with them.

Even good testing 5998's can do that.

It happened to me on other amps but on my Glenn amps.

post #11409 of 14390

Did you damage anything when it happened Stavros ?

post #11410 of 14390

No, I was very lucky, but it was scary watching the tubes arcing.

Some people had their headphone drivers damaged.

post #11411 of 14390
Quote:
Originally Posted by punit View Post
 
Quote:
Originally Posted by whirlwind View Post
 

Nice to know, I put this in my notes, along with many other notes that I took going thru these 740 pages of this thread  :smile:.....

 

Some more stuff to put in your notes (these were communicated over mail to me by Glenn) :

 

  • You can use 6336 tubes with 422A ,3DG4  5AU4  5AW4, GZ37 rectifiers to dive low impd HP’s on Glenn’s OTL
  • The 6336 can be used in ether switch position, so use it in the position that sounds best (my amp has 5998 & 6AS7 switch)
  • The HP’s should be unplugged when switching the 6AS7 / 5998 switch
  • Also when using 5998’s turn the amp on wait 5 minutes then plug in the headphones. 5998’s sometimes arc over when first turned on, after 5 min they are fine.

Thanks much for this info...it has been added to my growing list of notes.

post #11412 of 14390
Quote:
Originally Posted by parbaked View Post
 

I never heard the Jordan Watts or the Coral Betas.

I do have some time with the old Jordan JX92 in an elegant, slender TL cabinet. Sounded really good!

Let us know what cabinets you use and how it sounds...with pics!

 

Edit: I forgot to mention that Joe Akroyd (Royd Audio) also worked at Goodmans in the 1960s, probably just after Ted Jordan, but their paths definitely crossed!

Didn't know that piece of information.  Goodmans line of axiom speakers specially the 80 are so sought after.   I wonder if these speakers share some kind of similarities in sound.   Doubtful but who knows.  

It's given me more hope on a 45 amp project since yours can move a 90db efficiency speakers it would be easier to power a 95db one.   

 

No cabinets yet,  had a friend make a cheap open baffle for my 8" Coral Betas and they sound very good except for lack of bass but then again the mids and highs makes up in strides. 


Edited by Neogeo333 - 4/14/15 at 2:44pm
post #11413 of 14390
Quote:
Originally Posted by punit View Post
 

Did you damage anything when it happened Stavros ?

 

Glenn and I have both lost headphones to this.  A naughty 5998 blew up my K701s and Glenn lost a pair of nice Grados.  The driver was physically stuffed through the slots of the inner plastic grill.  Honestly I think this precaution could be applied to the 6AS7 and 6080.  This whole family of tubes tends to be a little bit more prone to short and arcing issues when first coming on bias.

post #11414 of 14390
Quote:
Originally Posted by Xcalibur255 View Post
 

 

Glenn and I have both lost headphones to this.  A naughty 5998 blew up my K701s and Glenn lost a pair of nice Grados.  The driver was physically stuffed through the slots of the inner plastic grill.  Honestly I think this precaution could be applied to the 6AS7 and 6080.  This whole family of tubes tends to be a little bit more prone to short and arcing issues when first coming on bias.

You got the 6as7 and 6080 nailed alright.   Didn't happen to my Glenn Otl but with a Little Dot.   2 of the 4 GE 6080 arched and fry themselves.   Was scared that the whole amp died.   Luckily just the tubes died.   No headphones were connected at the time.   Never got around to play with 6080 anymore.   Stuck using 5998 and sometimes 6as7.  Other 6080 from Sylvania and rca tested with short or one side dead on my tester before using them.   In my experience stay away from 6080 unless they are GEC or Mullard.   

post #11415 of 14390

When I get my amp, I am just going to make it a habit to let it warm up 5 or 10 minutes before i ever plug my headphones in....no matter what tubes that I am using.

 

That way I will get in that routine and won't forget.

 

With my Mad Ear+HD, I am used to just leaving my headphones plugged in and turning the amp on and listening......so i need to get out of that routine.

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