[thelostMIDrange]

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.....

 

[UKToecutter]

Don't hesitate.
It's a great amp.
You can have great fun tube rolling as well

 

[tomb]

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.

(edited)

 

[UKToecutter]

Don't forget 6N15P.
Nice cheap Russian tubes......

 

[dsavitsk]

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.

 

[mundo]

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.

 

[liamstrain]

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. 

 

[mundo]

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.

 

 

[jdkJake]

Those are film caps. They will be perfectly fine.

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

...or the cat chewed on them a bit.

 

[mundo]

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

 

 

[catfish]

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

 

[tomb]

Quote:

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.

 

[tomb]

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.

 

[dsavitsk]

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.

 

[tomb]