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Dsavitsk/Beezar Torpedo Build Thread - Page 21

post #301 of 400
1/12/13 at 12:16pm

can anyone comment on the transparency and untubey'ness of this amp please before I take the plunge. I've taken the tube plunge a few times before with a few low end headphone amps and got a little too soaked with tube'y sound....I like the idea of using OT's though and would like to try this. just looking for a few words of encouragement first.....


Edited by thelostMIDrange - 1/12/13 at 1:09pm
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post #302 of 400
1/12/13 at 3:01pm

Don't hesitate.

It's a great amp.

You can have great fun tube rolling as well

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post #303 of 400
1/12/13 at 4:24pm
Thread Starter 

Did someone say tube rolling?

 

6J6, 6J6-A, 6J6S, 6J6-W, 6J6-WA, 1216, 5844, 5964, 6030, 6045, 6099, 6101, 6535, 6927, 6CC31, 6MNN3, CK6101, CV5046, CV8160, CV8231, CV858, ECC91, M8081, T2M05, CV2843, CV4031, 6N15P. wink.gif

(edited)


Edited by tomb - 1/12/13 at 10:22pm
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post #304 of 400
1/12/13 at 6:00pm

Don't forget 6N15P.

Nice cheap Russian tubes......

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post #305 of 400
1/12/13 at 7:06pm
Quote:
Originally Posted by thelostMIDrange View Post

can anyone comment on the transparency and untubey'ness of this amp please before I take the plunge.

When people talk about tubey ness, this is usually due to recessed highs and lows, high distortion, and electrolytic caps in the signal path. The CCS loaded parafeed, the lack of DC in the output transformers, and the BJT bias elements in this amp eliminate all of that.
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post #306 of 400
1/12/13 at 7:19pm

Kinda off topic and perhaps a bit silly to ask. I'm currently building my Torpedo, and the Cat came and decided to jump on my desk. In the process he knocked the Auricaps I was going to use for C11/C12 off my desk and onto the carpet. Should I be worried about any damage? Externally they look fine, and only fell about 3 ft. I'd just hate to get them soldered up and have them be a problem. :(

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post #307 of 400
1/12/13 at 7:26pm

Not much to go wrong inside a standard capacitor (electrolytic or pp film cap) that wouldn't be visible from the outside, as far as I can tell. 


Edited by liamstrain - 1/12/13 at 8:46pm
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post #308 of 400
1/12/13 at 7:34pm

That was my thinking, but then I seemed to remember something a prof said about not dropping caps in a electrical circuits lab years ago. Perhaps I just misremembered what was said in that lab. rolleyes.gif
 

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post #309 of 400
1/13/13 at 6:42am
Those are film caps. They will be perfectly fine.

Unless you stepped on them while they were on the floor. wink.gif

...or the cat chewed on them a bit. biggrin.gif
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post #310 of 400
1/13/13 at 1:06pm

No, the cat didn't get the chance to bite them. Just gave them a quick wack off the desk. tongue.gif
 


Edited by mundo - 1/13/13 at 3:33pm
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post #311 of 400
1/18/13 at 8:15am

Any chance of a permalloy OPT upgrade in the future for us ?

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post #312 of 400
1/18/13 at 3:54pm
Thread Starter 
Quote:
Originally Posted by catfish View Post

Any chance of a permalloy OPT upgrade in the future for us ?

No, but I am going to change the listing on Beezar: the cases will be BLACK anodized within a week, with laser-etching to follow shortly after that. smily_headphones1.gif

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post #313 of 400
1/19/13 at 8:21am
Thread Starter 

Kits and Short Kits for the Torpedo will be out-of-stock for a few days while the anodizing/laser-etching is in work.

 

I have updated the Torpedo BOM on the Torpedo website to reflect the latest changes and the Zener diode tweak for D12, D14, and R4, R5.

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post #314 of 400
1/19/13 at 7:03pm
Quote:
Originally Posted by catfish View Post

Any chance of a permalloy OPT upgrade in the future for us ?

I'll disagree with Tom -- yes, there is a chance, but it will not be cheap, it will involve a group buy type of arrangement (it won't likely be something we stock), and it will not happen until the final bit of noise is eliminated. In the meantime, I know of a nice amp that has a similar topology and uses Permalloy outputs.
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post #315 of 400
1/25/13 at 3:00pm
Thread Starter 

Torpedo-B-3-640x480.jpg
Torpedo-B-4-640x480.jpg
Torpedo-B-1-640x480.jpg
Torpedo-B-2-640x480.jpg

 

biggrin.gifbiggrin.gifbiggrin.gif

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