Go Back   Home > Forums > >
Home Forums Rules Articles diyAudio Store Blogs Gallery Wiki Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

De-Lite Amplifier
De-Lite Amplifier
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
Reply
 
Thread Tools Search this Thread
Old 4th March 2010, 06:40 AM   #21
Meshuganah is offline Meshuganah  Australia
diyAudio Member
 
Join Date: Jun 2006
Location: South East Queensland
Hi, If you look at the old 'barretta' style resistor, you will be in the ball park.
Also, at least if you break one of these incandescents you won't polute the planet with mercury.
An old room heater, the type with a wire coil on a porcelain former could be used if you cut the wire to the right length but it wont glow and look cool like the globes.
Cheers and good luck.
  Reply With Quote
Old 4th March 2010, 10:28 AM   #22
Skorpio is offline Skorpio  Denmark
diyAudio Member
 
Join Date: Mar 2004
Location: Denmark
I like the concept with light bulbs, and I considered it "green"...because, you get both an anplifier and a light source. And you don't forget to turn our amp off when not using it because of the light ;-)
  Reply With Quote
Old 4th March 2010, 10:39 AM   #23
Foolforaradio is offline Foolforaradio  United States
diyAudio Member
 
Join Date: Jun 2008
Default Instructions?

Has anyone ever produced a set of instructions for this project? As in 'parts list, do this than do that' level for unskilled people such as myself?

Thanks...
  Reply With Quote
Old 4th March 2010, 10:40 AM   #24
Redhat is offline Redhat  United States
diyAudio Member
 
Join Date: Dec 2009
Good point! Plus it also serves as a "ammeter" of sorts. Way easier to see a changing light than the old "lick your finger and hope you don't hear a sizzle" trick.

;0)
  Reply With Quote
Old 4th March 2010, 10:47 AM   #25
audiopip is offline audiopip  Australia
diyAudio Member
 
audiopip's Avatar
 
Join Date: Nov 2006
Location: Melbourne, AU
See here

Lamps Index
  Reply With Quote
Old 4th March 2010, 10:51 AM   #26
Tea-Bag is offline Tea-Bag  United States
not politcally affiliated
diyAudio Member
 
Tea-Bag's Avatar
 
Join Date: Feb 2006
Location: Kennebunk
De-Lite Amplifier
@Foolforaradio -
This isn't like a kit instructions set.
I would suggest reading a basic schematics instructions set, or the old navy basic electronics. You'll get it. Then piece it together yourself.
This is one of Nelson's simplist amplifiers ever, meant to teach the basics.
A 1.2.3 Kit would not teach you much.
__________________
Salas Boards 2018#2 ​ ​Click Here to Sign Up! | Hot-Rod DCB1 boards and kits In Stock, PM | M2C Boards, PS and transformers Available PM | Sony VFET CSX2 AL boards In Stock
  Reply With Quote
Old 4th March 2010, 04:02 PM   #27
e_fortier is offline e_fortier  Canada
diyAudio Member
 
e_fortier's Avatar
 
Join Date: May 2001
Location: Eastern Canada
De-Lite Amplifier
Default Would 2SK134 be OK to use ?

Hi,

I have a few NOS Toshiba lateral mosfet model 2SK134 sitting at home, would it be possible to use them as replacement mosfet ? I was made aware that I would need to bias the gate to about 1.5Vdc but how about the bias current going through the drain, what value should I use to get the sweet spot as found but Mr Pass ?

Thanks for your help,

Regards,
Eric
  Reply With Quote
Old 5th March 2010, 01:25 AM   #28
multi-volti is offline multi-volti  United States
diyAudio Member
 
multi-volti's Avatar
 
Join Date: May 2005
Location: Michigan
I bought a case of those 300 W mogul lamps for an old darkroom enlarger...but they were only frosted and not flashed opal.

Maybe here's another use!

and hey, how about a mega-easy-bake oven to cook with while enjoying music?, and cutting down on the glare at the same time.

I don't like the idea of CFL's...they sound terrible...you self-respecting folks wouldn't use a tantalum coupling cap, so why would you use a 'CFL resistor' with a transfer function that's worse than the non-linear incandescent lamp's...possibly the ultimate in non-linearity, a rectifier followed by a switching circuit! They can put a fair amount of krap back into the power line too... ugh :Oo

I think it's pretty sad how many CFL's I've had fail for punctured film caps...not the lamp itself. I open them up out of habit as I did some e-ballast design work in the early 90's.

An incandescent light bulb is fundamental to the Wein Bridge oscillator. Ugh again...imagine a CFL replacement!

Now here's a thought I wanted to pursue...a CFL with its electronics removed used as a cold cathode VR tube or similarly to a neon lamp...the lamp voltage can be found with a little research...but it is different at 15-40 kHz than at DC-60 Hz range...something about cathode fall potential that goes away above the relaxation freak.

I diverge...gotta go get me some MOSFET.
__________________
Murray
  Reply With Quote
Old 8th March 2010, 05:41 AM   #29
yulius is offline yulius  Indonesia
diyAudio Member
 
Join Date: Dec 2004
Location: Jakarta, Indonesia
Smile The De-Lite Amplifier

put an output transformer before loudspeaker may improve the amplifier ?
  Reply With Quote
Old 23rd May 2010, 10:31 AM   #30
londonbarn is offline londonbarn  United States
diyAudio Member
 
Join Date: Dec 2007
I use RED light bulbs, and call mine the "Ampsterdam".............
  Reply With Quote

Reply


De-Lite AmplifierHide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
X-lite nobody special Pass Labs 24 7th April 2006 01:11 PM
X-BOSOZ/SOZ-Lite needtubes Pass Labs 1 29th February 2004 11:18 AM
Basszilla Lite jim Multi-Way 8 19th November 2003 07:25 PM
Zen lite chrille Pass Labs 10 15th February 2003 09:02 PM
bulbs for the Zen lite Selfmade Pass Labs 2 15th February 2002 10:10 PM


New To Site? Need Help?

All times are GMT. The time now is 12:55 PM.


Search Engine Optimisation provided by DragonByte SEO (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Resources saved on this page: MySQL 14.29%
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2018 DragonByte Technologies Ltd.
Copyright ©1999-2018 diyAudio
Wiki