Pass "DeLite" Amp from BAF - Page 5

flg · 22nd October 2009, 03:49 PM

Quote:

Originally Posted by Tea-Bag

FLG,
I opened a group buy thread for the FET at least, ...

Great. I thought N.P. said this thing was 5 bucks and available at Digi-Key...
Well, to him maybe. It's listed a $6.70 or something w/none in stock(non stocked) and a min order of 60! Oh well...
I'm deffinatly up for a handfull of those. Thx

eyoung · 24th October 2009, 01:38 AM

Just a bump to keep me in the loop...

mE.

Steve Eddy · 24th October 2009, 04:06 AM

Check out these antique light bulbs from TubeDepot

se

wrenchone · 24th October 2009, 04:59 AM

Nelson said at BA that the IXYS thingy was about 6 bucks a pop and one of those non-stock "stock" items at Digikey with a min order of 60 pieces ( about two-three tubes worth). He flat-out recommended a group buy.

Tea-Bag · 24th October 2009, 11:43 AM

Quote:

Originally Posted by wrenchone

Nelson said at BA that the IXYS thingy was about 6 bucks a pop and one of those non-stock "stock" items at Digikey with a min order of 60 pieces ( about two-three tubes worth). He flat-out recommended a group buy.

Wrenchone,
I am offering a group buy for these.
Offering another solution, you can order them from mouser individually, at a higher costs.
The group buy will take about two months from close to get delivery.

Michi124 · 24th October 2009, 02:26 PM

Where to find those beautiful light bulb sockets Nelson uses on this amp?
The ones on the photos linked by Steve seem to be the same...

I already checked german online stores, the nicest ones I found are those:

Vix · 24th October 2009, 03:09 PM

Hi,

Getting "proper" lamps in Europe should not be so difficult, but they may not look so "romantic" like the old style incandescent lamp. For example, this one can be used:
OSRAM 64701 300W 230V R7S - Licht-123 -Leuchtmittel - Strahler - LED - Osram - Philips - SLV - Paulmann - Trio - Megaman - Massive

Beware that in order to get the needed current, up to ten such lamps may need to be wired in parallel (5-10 actually, depending on the desired current). Also, a funny idea would be to build an amp which would actually look like a small stove. (actually an amp inside a small stove). Or, an amp with a pair of water kettles on top, like this: Amazon.com: Aroma AWK-115S 1-1/2-Liter Hot H20 X-PressWater Kettle: Kitchen & Dining (they will have be filled with a bit of water, which will get warm during operation)

On the other hand, its is known that Nelson uses a lighbulb as a CCS in his tutorial examples. So, we may be looking toward another depletion mode mosfet on top as a CCS. Then, let's revise most of the ZEN series (1-7)...I think that SOZ with the Ixys device would be cool (hot actually)

pchw · 24th October 2009, 03:34 PM

Quote:

Originally Posted by wrenchone

Nelson said at BA that the IXYS thingy was about 6 bucks a pop and one of those non-stock "stock" items at Digikey with a min order of 60 pieces ( about two-three tubes worth). He flat-out recommended a group buy.

Will you be able to take 30? If so, we can share a batch of 60 as we are both in Bay Area. I can hand delivery :-)
PM me if interested.

Jacques Merde · 24th October 2009, 07:21 PM

Hi,

Has anyone considered using a ballast tube instead of a light bulb for the CCS?

eyoung · 25th October 2009, 12:43 AM

Hola Hombres,

Back In the 60's and 70's some chrysler autos used ballast resistors in the 12V primary side of the ignition coil circuit(readily available maybe a source to be checked out ((beefy thing in ceramic and nichrome assy's))...
Just a thought..

Dreaming In SC, Elwood

24th October 2009, 01:38 AM	#42
eyoung diyAudio Member Join Date: Aug 2007 Location: Sunny SC,USA 15 min south of Charlotte NC	Just a bump to keep me in the loop... mE. __________________ "Sometimes obstacles are put in our way to make us slow down so that we can enjoy the journey and appreciate the destination when we eventually get there"

24th October 2009, 02:26 PM	#46
Michi124 diyAudio Member Join Date: Dec 2003 Location: Berlin, Germany	Where to find those beautiful light bulb sockets Nelson uses on this amp? The ones on the photos linked by Steve seem to be the same... I already checked german online stores, the nicest ones I found are those: __________________ Brutalized by bass and terrorized by treble...

25th October 2009, 12:43 AM	#50
eyoung diyAudio Member Join Date: Aug 2007 Location: Sunny SC,USA 15 min south of Charlotte NC	Hola Hombres, Back In the 60's and 70's some chrysler autos used ballast resistors in the 12V primary side of the ignition coil circuit(readily available maybe a source to be checked out ((beefy thing in ceramic and nichrome assy's))... Just a thought.. Dreaming In SC, Elwood __________________ "Sometimes obstacles are put in our way to make us slow down so that we can enjoy the journey and appreciate the destination when we eventually get there"

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24th October 2009, 04:06 AM	#43
Steve Eddy diyAudio Member Join Date: Sep 2002 Location: Sacramento, CA	Check out these antique light bulbs from TubeDepot se

24th October 2009, 04:59 AM	#44
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	Nelson said at BA that the IXYS thingy was about 6 bucks a pop and one of those non-stock "stock" items at Digikey with a min order of 60 pieces ( about two-three tubes worth). He flat-out recommended a group buy.

24th October 2009, 03:09 PM	#47
Vix diyAudio Member Join Date: Nov 2003 Location: Somewhere on Planet Earth	Hi, Getting "proper" lamps in Europe should not be so difficult, but they may not look so "romantic" like the old style incandescent lamp. For example, this one can be used: OSRAM 64701 300W 230V R7S - Licht-123 -Leuchtmittel - Strahler - LED - Osram - Philips - SLV - Paulmann - Trio - Megaman - Massive Beware that in order to get the needed current, up to ten such lamps may need to be wired in parallel (5-10 actually, depending on the desired current). Also, a funny idea would be to build an amp which would actually look like a small stove. (actually an amp inside a small stove). Or, an amp with a pair of water kettles on top, like this: Amazon.com: Aroma AWK-115S 1-1/2-Liter Hot H20 X-PressWater Kettle: Kitchen & Dining (they will have be filled with a bit of water, which will get warm during operation) On the other hand, its is known that Nelson uses a lighbulb as a CCS in his tutorial examples. So, we may be looking toward another depletion mode mosfet on top as a CCS. Then, let's revise most of the ZEN series (1-7)...I think that SOZ with the Ixys device would be cool (hot actually)

24th October 2009, 07:21 PM	#49
Jacques Merde diyAudio Member Join Date: Oct 2009	Hi, Has anyone considered using a ballast tube instead of a light bulb for the CCS?

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