2359glenn | studio
Oct 11, 2015 at 10:37 PM Post #12,121 of 40,062
  So many wonderful looking amps.....George.....lets see that beast  
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Its in my cousin apt.  When I go to NY on Nov i'll post some photos.  I hope it plays well from a smartphone. 
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Oct 12, 2015 at 3:40 AM Post #12,124 of 40,062
   
 
I was thinking about adding the 300B to the stable, but I have Wharfedale Jade 3s incoming, so I really need something more suited to driving those.

I was in the same dilemma, wanted to try 300B sound for my speaker system (PSB Synchrony One) but wanted more power than the 8 -15 watts that 300B amps have. So I will have a pre-amp out installed on my 300B HP amp that Glenn will make (sometime in the near future). I will then have a 300B pre amp driving my Audio GD Master 2 mono blocks. Hopefully that will give me tube musicality with SS slam.
 
Oct 12, 2015 at 4:43 AM Post #12,125 of 40,062
 
  ^ That!

I know that Glenn is not using the small chassis and transformers anymore but, if you just want to listen to music, his basic OTL - with $50 worth of tubes is all one really needs.
The other stuff is just because we can...

 
Is this form factor still an option? 


I might be able to make it with the Lundahl transformer but at $300 more for the transformer. and can't do the 5998 mod or the 6 > 12 > 25 volt switch
not enough room.
It is a nice size.  Had to switch transformers Thordarson got crazy with the price when I wanted a 115/230 primary as 1/2 of all my amps went over seas.
 
Oct 12, 2015 at 5:59 AM Post #12,126 of 40,062
Oct 12, 2015 at 10:10 AM Post #12,127 of 40,062
   
 
/wave
 
 
Between your OTL and SOs, I had to get one. I can't get over how awesome the T1s sound with it. I was thinking about adding the 300B to the stable, but I have Wharfedale Jade 3s incoming, so I really need something more suited to driving those.

Are those the ones we saw at Axpona?
 
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Oct 12, 2015 at 6:41 PM Post #12,130 of 40,062
  Glenn, can you build an OTL amp around the 6c33c tube?


Do you want to heat your house with it???
I suppose I could I bought a filament transformer with enough current to supply them but never got around to building it.
To busy building amps for paying customers to build one for me so I didn't do it.
It would need 4 of them for a OTL.
 
Glenn
 
Oct 13, 2015 at 1:22 AM Post #12,133 of 40,062
Just be careful with the Zana Deux or anything that uses the 6C33C. I've seen people get some pretty nasty burns from how ridiculously hot those tubes get. 
 
Definitely not a family or pet safe choice of tubes. 
 
Oct 14, 2015 at 11:06 AM Post #12,134 of 40,062
Most of the Siemens C3g out there are from the 1970's, with silkscreened shiny black cans. For some time now, I have been curious to discover how the Siemens C3g from the 1950's and 60's compare. And yesterday, I received a such a pair with embossed flat-black cans.
 

 
 Old Siemens with yellow banding, new Siemens with no banding and old Lorenz with blue banding.
 

 
I am pleased to report that they light up and play, but haven't yet had the opportunity to make any comparisons.
 

 
Oct 14, 2015 at 11:20 AM Post #12,135 of 40,062
  Most of the Siemens C3g out there are from the 1970's, with silkscreened shiny black cans. For some time now, I have been curious to discover how the Siemens C3g from the 1950's and 60's compare. And yesterday, I received a such a pair with embossed flat-black cans.
 

 
And here, compared to Lorenz C3g from the mid 1960's
 

 
I am pleased to report that they light up and play, but haven't yet had the opportunity to make any comparisons.
 

Look forward to the day I can use these!
 

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