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2359glenn | studio - Page 415

post #6211 of 9387

That looks like the fluorescence my Tung Sol 45 shows.  It's from stray electrons hitting the glass.  I was a little worried too the first time I saw it.

 

As long as you don't get a purple hazy cloud that is centered inside the plates you are fine.

post #6212 of 9387
No purple hazy. Thanks
post #6213 of 9387
Thread Starter 

:D Okay Jimi!

post #6214 of 9387
Thread Starter 
Quote:
Originally Posted by jc9394 View Post
 

One of my Sophia have abnormal glow, is this normal?  It is only visible on the pics.

 

 

It is when you live with Ghosts. Looking at the pix, the glow isn't limited to Miss Sophia on the right, but also the driver... everything to the right ain't right....er... is glowing abnormally. :normal_smile :

post #6215 of 9387
Quote:
Originally Posted by jc9394 View Post
 

One of my Sophia have abnormal glow, is this normal?  It is only visible on the pics.

 


Put your finger on the glass see if it has the plasma ball effect.:D

post #6216 of 9387

Yeah..If your hair stands up then the tube is OK...:D

post #6217 of 9387
Quote:
Originally Posted by Neogeo333 View Post


Put your finger on the glass see if it has the plasma ball effect.biggrin.gif

Sure, let's start with yours first. I don't need anymore burns on my hands.
post #6218 of 9387
Thread Starter 
Quote:
Originally Posted by Clayton SF View Post
 
 
Quote:
Originally Posted by Neogeo333 View Post
 

Hmm, would you say the OTL has more grunt?  While 300b sounds more mellow?  Would the OTL have the upper hand on music with more bass?  The the 300b would be better with vocals? 

I'd say that the 300b has a delicate touch. The OTL and the 300b handle vocals well, but I feel that the 300b has a more natural sound. The OTL has punch-presence. The 300b has live presence. The 300b is great with vocals and acoustic music.

 

:thumb: I like this description. Saturday afternoon, I was in-session with Matt (Pitch Perfect Audio), a terrific host as usual. Waiting for me was a pair of fully warmed-up Shindo Laboratory 300B monaural blocks with NOS WE Glass in the slots. I had my way with 'em for the first hour, then he swapped in my F2a monos for the next couple of hours.

 

The first few notes made it easily apparent that the 300B glass were about tone... magic in the middle. I began the session with none other than Louis Armstrong... Satchmo... on vinyl! 

 

 

I just bought disclaimers, :wink_face:a Dime a dozen...

 

...Yes, I was in an elevated mood. Yes, it's been several moons since I last heard 300Bs. And yes, it's been several months since my last session with a full-size rig. And the studio loft isn't fully treated. So, now that we know a pinch of salt in this post is equal to a grain of salt in reality... :rolleyes:

 

 

 

Anyway, that horn, the piano, cymbals and vocals all emanating from the large field coil speakers... a whole lotta magic. Tonally, things just sounded right. And notes took instruction and followed them. Completely. No mangled or abandoned notes before a proper finish/decay.

 

Louis and the Boys were in the room, pleasantly so. :wink:

post #6219 of 9387
Quote:
Originally Posted by Neogeo333 View Post


Your correct, Glenn says its the gain issue. I was thinking on a 300b amp that would be my last tube amp. At least for a long long time. Still plenty of time to figure this out since I'm still greatly enjoying my otl amp.

opps wrong quote.

 

There is no Ultimate amp be it SS or tube.

 

Quote:
Originally Posted by Neogeo333 View Post
 

Hmm, would you say the OTL has more grunt?  While 300b sounds more mellow?  Would the OTL have the upper hand on music with more bass?  The the 300b would be better with vocals? 

 

I am running two 300B based headphone amps and a few OTLs.

They all sound different, a lot depends on tube selection, how responsive the amps are to tube rolling and system synergy.

 

Quote:
Originally Posted by longbowbbs View Post
 

Yeah..If your hair stands up then the tube is OK...:D

 

Eric that's my way of testing.

post #6220 of 9387
Thread Starter 
Quote:
Originally Posted by rosgr63 View Post
 

 

There is no Ultimate amp be it SS or tube.

 

:thumb: I'm in your camp on this...

post #6221 of 9387
Quote:
Originally Posted by Silent One View Post
 

Louis and the Boys were in the room, pleasantly so. :wink:

What a great evening!

post #6222 of 9387
Anyone know which VT25 or 10Y tubes have the thoriated tungsten? Some of them are oxided coated but which one which?
post #6223 of 9387
The ones with the smaller plate company's likeRCA made them both ways but the throated always had the smaller plate
post #6224 of 9387
a
Quote:
Originally Posted by 2359glenn View Post

The ones with the smaller plate company's likeRCA made them both ways but the throated always had the smaller plate

Thanks Glenn. Just took my pre out from storage and forgot the darn thing have a gain dial. So my future dht amp might use the type 10 after all.
post #6225 of 9387
What is the SQ of this preamp ??

If this isn't a high quality preamp the SQ will only be as good as the preamp.

Is it tube or SS ?

I ask this because my amps are a # 10 driving a 300B with a preamp using a # 26 DHT
When I built Clayton's amps and Ultra's amp with the C3g driver it sounded as good everything was the same
same output transformers the only difference was the driver. If I was going to do it allover again I would use
the C3g and omit the preamp.
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