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2359glenn | studio - Page 69

post #1021 of 10812
Quote:
Originally Posted by rosgr63 View Post

Glenn don't forget your holiday plans.

 

And my second amp when you finish all the above.

 

Sea master that's really nice, waiting to see your design.

Are you going to use GR in the logo? 

I had my friend made a 3D version first, but could also made into 2D format. It will be " Glenn (design) Studio ". I am away, wait till I got back.

post #1022 of 10812
Thread Starter 
Quote:
Originally Posted by Seamaster View Post

Project Calendar will put Glenn in robotic mode. I don't think he is in to make this into a business like other amp builders yet. I sure he would like some flexibility in his life, and enjoy other things. Don't shoot me, just saying...biggrin.gif

 

I am working on make a logo/Signature for his work.

 

This is interesting...

post #1023 of 10812
Quote:
Originally Posted by rosgr63 View Post

And I thought I was the bad one........................evil_smiley.gif

 

Your are! Glad you are enjoying the new toy.

post #1024 of 10812

Hi Miguel, thanks my friend.

 

Here is the Rectifier table in a more presentable form.

 

 

 

GR OTL Amp

Power  Tubes

5998

6AS7G

Adapter

 

 

 

 

 

Rectifier Tubes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3DG4

 

YES

YES

NO

GZ33/37

 

YES

NO

NO

5V3/5AU4

 

YES

NO

NO

5U8-C

 

YES

NO

YES

596

 

YES

NO

YES

 

post #1025 of 10812
Thread Starter 

 Looks good to me...nice edit!

post #1026 of 10812

Thanks SO.

 

I am going to draft a driver and power tubes list next.

post #1027 of 10812
That is a very helpful chart. Thanks for creating it!
post #1028 of 10812
Quote:
Originally Posted by rosgr63 View Post

Hi Miguel, thanks my friend.

 

Here is the Rectifier table in a more presentable form.

 

 

 

GR OTL Amp

Power  Tubes

5998

6AS7G

Adapter

 

 

 

 

 

Rectifier Tubes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3DG4

 

YES

YES

NO

GZ33/37

 

YES

NO

NO

5V3/5AU4

 

YES

NO

NO

5U8-C

 

YES

NO

YES

596

 

YES

NO

YES

 


I'm going to feel guilty after you put the work in, but I would like to offer some corrections:

 

- The GZ33/37 is a yes for both power tubes.  They are more than up to the task and have almost the same current output ability as the 3DG4.

- The 5U8C is also more than up to the task for both power tubes, it has the highest current capability of any single rectifier I know of.  It is not even breaking a sweat in this amp, and that is really saying something.

- The 5AU4 is also quite safe to use with 6AS7G tubes provided you are using the older version of the tube with the wider and longer plates.  It appears only GE manufactured them, and they are easy to spot because their glass envelope and base are really big.  They dwarf most straight bottle rectifier tubes.

post #1029 of 10812
Quote:
Originally Posted by rosgr63 View Post

Hi Miguel, thanks my friend.

 

Here is the Rectifier table in a more presentable form.

 

 

 

GR OTL Amp

Power  Tubes

5998

6AS7G

Adapter

 

 

 

 

 

Rectifier Tubes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3DG4

 

YES

YES

NO

GZ33/37

 

YES

NO

NO

5V3/5AU4

 

YES

NO

NO

5U8-C

 

YES

NO

YES

596

 

YES

NO

YES

 


Eek! I've been using the 596 with an GE 6AS7GA and an RCA 6AS7G for about a year. I hope I'm not ruining the amp. It sounds excellent though.

post #1030 of 10812
Quote:
Originally Posted by Clayton SF View Post


Eek! I've been using the 596 with an GE 6AS7GA and an RCA 6AS7G for about a year. I hope I'm not ruining the amp. It sounds excellent though.


No, you're just fine.  Glenn said so himself.  All you are doing is shortening the life of the 596 tube itself by an inconsequential amount.

post #1031 of 10812
Thread Starter 

USAF-596, probably a service life of 5 years instead of 10 years he reported with the 596/6AS7G combo...

post #1032 of 10812

Okay, thanks, SO and Xc255. I took my headphones off for one minute, saw the chart and panicked. I am now calm--and back to my headphones. :)

post #1033 of 10812
Thread Starter 

You're most welcome...happy listening. I can't wait to return to the listening room @ midnight!

post #1034 of 10812

I am listening to Melody Gardot.

 

400

post #1035 of 10812
Quote:
Originally Posted by Clayton SF View Post

I am listening to Melody Gardot.

 

400

she is one of my favorite, but sometime make my wondering how many sunglasses she has..

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