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2359glenn | studio - Page 11

post #151 of 10646

SO you're such a "BAD" company!very_evil_smiley.gif

post #152 of 10646

I made a bit of a discovery today. The TS 7236 tubes came in. The 7236 tubes that I was using were made by Cetron which brought out Tung-Sol tooling for the 7236 during Tung-Sol later days. However the TS 7236 and the Cetron 7236 are not exactly the same as I thought.  The Cetron has perfectly round clear mica on top and the brightness of the Cetron filaments is much more than the Tung-sol. The getter flashing of the Tung-Sol goes a bit lower than the Cetron.

 

"These are my continuing experiences to explore new sonic frontiers. To go boldly where I have not heard before…."

 

 

 


Edited by john57 - 4/5/12 at 9:07pm
post #153 of 10646
Thread Starter 

We'd like to see you push through new frontier. biggrin.gif So, is the Cetron 7326 a numeric typo or is it actually a 7326 instead of 7236? I'm still playing around with footers and platforms and the sonic signature continues to change. Ordered a new Maple platform Tuesday night From The Mapleshade Store; very excited - 15"x12"x4". Hope to add a second one of the same size next week.

 

The first platform will be for the Silver Hawk (the 6AS7 OTL based amp). The second platform faces auditioning - to place underneath the Mac mini music server or the W4S DAC? In June, I hope to simply by a third platform, so no need to choose after that point.


Edited by Silent One - 4/5/12 at 8:58pm
post #154 of 10646

It is 7236 it is all to easy for me to transpose numbers just miss that. One change that I did with mine was to change the plastic feet to thicker and taller rubber feet like in the photo. The only issue since it is natual rubber it has to air out just a bit for a few days.  

 

P1000278.JPG

 

post #155 of 10646
Thread Starter 
Quote:
Originally Posted by john57 View Post

It is 7236 it is all to easy for me to transpose numbers just miss that. One change that I did with mine was to change the plastic feet to thicker and taller rubber feet like in the photo. The only issue since it is natual rubber it has to air out just a bit for a few days.  

 

P1000278.JPG

 



When Sly & The Family Stone was singing "I Want To Take You H-i-g-h-e-r..." I don't think they ever considered the fumes from a listener's new rubber feet! Good to hear you gonna air 'em out! Can't wait for you to listen for changes in your amp. Hopefully, you won't suffer any sonic penalty for making the change.  

post #156 of 10646

Adding the taller rubber feet makes sure that the air intake gets plenty of air and for better vibration isolation. biggrin.gif

post #157 of 10646
Thread Starter 

You make audio look fun!

post #158 of 10646

good1.jpg

 

My amp with the two Cetron 7236 tubes on the sides bright heaters but still orange you can see the clear mica spacer on top

The 2C50 tube in front middle has rather dimer heaters

the 3DG4 tube in top back with double top halo getters.

 

Taken with:

 

Panasonic DMC-ZS7 compressed

F/3.3

½ sec.

ISO 400

Exposure bias -.7

 

 

post #159 of 10646

The 5998 glows bright like this too, only the filaments are exposed on the bottom too so you get even more light.  I especially love how you can see the cathode glowing in between the anode plates if you look between them.  IMO it's the pretttiest tube to look at out of everything I have seen, including my mesh plate EML 274B rectifier.

post #160 of 10646
Thread Starter 

 

What a holiday treat, john57! 

post #161 of 10646
Thread Starter 
Quote:
Originally Posted by Xcalibur255 View Post

The 5998 glows bright like this too, only the filaments are exposed on the bottom too so you get even more light.  I especially love how you can see the cathode glowing in between the anode plates if you look between them.  IMO it's the pretttiest tube to look at out of everything I have seen, including my mesh plate EML 274B rectifier.


After looking in darkness from the TS-BGRP & USAF-596, the 5998's look like fireworks! tongue_smile.gif

 

post #162 of 10646

The Raytheon 12SN7 tubes are in the amp now and working fine. The RCA's still have not impress me as much. The Raytheon is good when you need more gain since the 2C50 has lower gain. Depending on your needs and setup both are good and a bit lower noise that the RCA's even with the gray glass.  Just finshed checking with all of my headphones taking my time.

post #163 of 10646
Thread Starter 

 

Perhaps, by Memorial Day weekend, we could compare notes on the 12SN7 series. 

post #164 of 10646
Thread Starter 

A classic advert... "Don't Be Vague...Ask for SPRAGUE."

 

e5691f42_classicadvert.jpeg


Edited by Silent One - 4/7/12 at 1:11pm
post #165 of 10646
Thread Starter 

130. That is the number of estimated hours I now have on the Silver Hawk. And it is here, at 130 hours that the caps have finally began to open up. It's a wonderful thing to hear; notice. The amp has a bit more depth front-to-rear, air in and around the instruments and vocals. I can peer somewhat deeper into the presentation. 

 

My USAF-596 rectifier just returned home from a World Tour Saturday, so after an hour with the GE-3DG4, I swapped in The Mighty 596 for an additional two hours of fun. The former Governor of Alaska has said she could see the country of Russia from her front porch. Since the '596' went form SoCal to Alaska, I'm sticking to my claims of a World Tour! 


Edited by Silent One - 4/8/12 at 2:54am
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