diyAudio

diyAudio (http://www.diyaudio.com/forums/)
-   Pass Labs (http://www.diyaudio.com/forums/pass-labs/)
-   -   ImPasse Preamplifier (http://www.diyaudio.com/forums/pass-labs/136835-impasse-preamplifier.html)

jackinnj 18th January 2009 10:53 PM

ImPasse Preamplifier
 
I am fascinated with this preamp by Mr. Yaniger -- as it has 5 glowing elements --

the wikipedia has a pretty neat neon lamp activitated GIF:
http://en.wikipedia.org/wiki/Neon_lamp

i have seen NE-2's used in relaxation oscillators...

tubelab.com 18th January 2009 11:25 PM

Quote:

as it has 5 glowing elements --
UH... I only count two, the 6DJ8 and the 6SN7. The NE2 should not glow in normal operation, it is there to help ease the shock that V2 sees on power up since the CCS is trying to stuff all of its current int V2's grid before V1 is warm.

SY 18th January 2009 11:29 PM

LEDs.

I haven't seen the article yet, but that guy always seems to be sticking LEDs in there somewhere.

tubelab.com 18th January 2009 11:33 PM

DOH, I didn't see them glowing. I guess we are both wrong, since I now count 6 glowing things, but I never could count.

SY 19th January 2009 05:18 PM

Since this preamp is specifically designed to work with the Pass F4, I'm taking the liberty of moving the thread to the Pass forum.

Tea-Bag 19th January 2009 05:22 PM

I read the AX article. 26db of gain for this pup. Balanced tube line amp.

Does Variac have this in his setup now?

Zen Mod 19th January 2009 05:25 PM

Quote:

Originally posted by SY
Since this preamp is specifically designed to work with the Pass F4, I'm taking the liberty of moving the thread to the Pass forum.

OK
since it is published ( at last ! ) , just put schematic here ....

jackinnj 19th January 2009 06:11 PM

and, if you have to order NE-2's -- they come in assorted flavors -- the NE2H is "leaded", the NE2B is "socketed".

hifimaker 19th January 2009 06:21 PM

Where's the pictures or schematic being referring too?

-David

Tea-Bag 19th January 2009 06:30 PM

2 Attachment(s)
Quote:

Originally posted by hifimaker
Where's the pictures or schematic being referring too?

-David


Latest AudioExpress magazine. The picture anyways, some of it, in top right corner.


All times are GMT. The time now is 01:48 PM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio


Content Relevant URLs by vBSEO 3.3.2