ImPasse Preamplifier

jackinnj · 18th January 2009, 09:53 PM

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, 10:25 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, 10:29 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, 10:33 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, 04:18 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, 04:22 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, 04:25 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, 05:11 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, 05:21 PM

Where's the pictures or schematic being referring too?

-David

Tea-Bag · 19th January 2009, 05:30 PM

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.

18th January 2009, 09:53 PM	#1
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	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...

18th January 2009, 10:29 PM	#3
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	LEDs. I haven't seen the article yet, but that guy always seems to be sticking LEDs in there somewhere. __________________ If there's a sucker born every minute, where do the rest of them come from?

18th January 2009, 10:33 PM	#4
tubelab.com diyAudio Member Join Date: Jul 2005 Location: South Florida	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. __________________ Too much power is almost enough! Turn it up till it explodes - then back up just a little.

19th January 2009, 04:18 PM	#5
SY diyAudio Moderator Join Date: Oct 2002 Location: Chicagoland Blog Entries: 1	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. __________________ If there's a sucker born every minute, where do the rest of them come from?

Thread Tools	Search this Thread
Show Printable Version Email this Page	Search this Thread: Advanced Search


	Please consider donating to help us continue to serve you. Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving

19th January 2009, 04:22 PM	#6
Tea-Bag not politcally affiliated diyAudio Member Join Date: Feb 2006 Location: Kennebunk Blog Entries: 7	I read the AX article. 26db of gain for this pup. Balanced tube line amp. Does Variac have this in his setup now?

19th January 2009, 05:11 PM	#8
jackinnj diyAudio Member Join Date: Apr 2002 Location: Llanddewi Brefi, NJ	and, if you have to order NE-2's -- they come in assorted flavors -- the NE2H is "leaded", the NE2B is "socketed".

19th January 2009, 05:21 PM	#9
hifimaker diyAudio Member Join Date: Oct 2003 Location: San Jose	Where's the pictures or schematic being referring too? -David

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Why do you need a preamplifier?	globalweb	Solid State	54	14th October 2007 04:47 PM
Mic PreAmplifier	Ayne	Solid State	4	13th April 2007 03:18 AM
Preamplifier	aguantesoda	Solid State	24	8th September 2006 02:39 PM
Preamplifier DIY	Angel Puerto	Solid State	13	20th July 2005 08:53 PM

New To Site?	Need Help?
Register to Participate Search Privacy Statement Contact Us	Frequently Asked Questions Did you forget your password? Mark Forums Read