Go Back   Home > Forums > Amplifiers > Solid State

Solid State Talk all about solid state amplification.

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 July 2004, 01:32 PM   #21
diyAudio Member
 
Join Date: Feb 2004
Location: Racine, Wisconsin
Does anybody want to do a group buy for components for this project? If there is a volunteer for the identification and PN's, I'll do the purchase and mailings.

Raise your hands.
  Reply With Quote
Old 4th July 2004, 07:23 PM   #22
diyAudio Member
 
diamdiam's Avatar
 
Join Date: Mar 2002
Location: Chicago
Send a message via AIM to diamdiam
i'd be interested in a group buy
  Reply With Quote
Old 5th July 2004, 12:19 AM   #23
diyAudio Member
 
Join Date: Feb 2004
Location: Racine, Wisconsin
You want to drive up and pick 'em up?

The 5% assortments aren't good enough for this project, are they?

Example...

http://cgi.ebay.com/ws/eBayISAPI.dll...824907304&rd=1

I would like to spend more on components than shipping charges.
  Reply With Quote
Old 5th July 2004, 12:38 AM   #24
tiroth is offline tiroth  United States
diyAudio Member
 
Join Date: Dec 2001
Location: Pittsburgh, PA, USA
I think it is probably cheaper to order from Mouser, the 1% 100ppm tempco are..what, 2 or 3 cents each, and you get exactly the needed values. And you can order in quantities as small as 1. Their shipping for small packages is as little as $5.

I will repost my spreadsheet tomorrow (4th of July observed in the U.S.!) which has the correct part numbers. I just want to vet it again for accuracy, although it is in the big group buy thread.

I tried talking Jens out of a component group buy mostly because it would be an absolutely insane amount of work to kit out all the resistors.
  Reply With Quote
Old 6th July 2004, 05:02 AM   #25
diyAudio Member
 
grimberg's Avatar
 
Join Date: Oct 2002
Location: California, USA
Tyler,

Even though I reviewed the original Moamps’ thread, I could not find the schematic that matches the discrete OpAmp board layout. Could you please tell me where I can find it?

Also, I could not find at Digikey or Mouser a 100 nF capacitor that fits the spacing of C3 on the board. Which component did you use as reference for the layout?
  Reply With Quote
Old 7th July 2004, 03:08 PM   #26
diyAudio Member
 
JensRasmussen's Avatar
 
Join Date: Jul 2002
Location: Denmark - Jutland
Send a message via ICQ to JensRasmussen Send a message via MSN to JensRasmussen
Default Free 1 uF 10% 63V film caps for the mox filter

I have a lot of these from work (They were thrown out because they are not used anymore)

If you are interested I can send some of them for free – you only have to pay for the shipping.

Tyler how many do you want - maybe I can send 500 or so to you, and you can send them to people from the USA?

\Jens
  Reply With Quote
Old 7th July 2004, 03:55 PM   #27
tiroth is offline tiroth  United States
diyAudio Member
 
Join Date: Dec 2001
Location: Pittsburgh, PA, USA
Quote:
Even though I reviewed the original Moamps’ thread, I could not find the schematic that matches the discrete OpAmp board layout. Could you please tell me where I can find it?
Here was the original schematic that the boards were built from; some parts are missing now so I should probably draw a new one, but this can be used to see the component designators.

http://www.diyaudio.com/forums/showt...405#post369405

Quote:
Also, I could not find at Digikey or Mouser a 100 nF capacitor that fits the spacing of C3 on the board. Which component did you use as reference for the layout?
This is tough to find. Moamps might be able to respond with the cap he used. I ended up using Mouser 75-MKT1826410064 but the leads had to be bent. You could probably use 23PW310 (10nF!) but I have not tested this.

I am attached a slightly changed shoppping list. It has primary and alternate Mouser part numbers for most everything you need; I stuck to 1% parts, so there are a few Q values that don't exist. You can parallel if you really want them or look up a .1% part.
Attached Files
File Type: zip mox_shopping_list_v11.zip (6.4 KB, 75 views)
  Reply With Quote
Old 7th July 2004, 04:01 PM   #28
tiroth is offline tiroth  United States
diyAudio Member
 
Join Date: Dec 2001
Location: Pittsburgh, PA, USA
Default Re: Free 1 uF 10% 63V film caps for the mox filter

Quote:
Originally posted by JensRasmussen
If you are interested I can send some of them for free – you only have to pay for the shipping.

Tyler how many do you want - maybe I can send 500 or so to you, and you can send them to people from the USA?
Very generous of you Jens. Sure, I'd be happy to distribute. Shoot me an email re shipping cost.
  Reply With Quote
Old 7th July 2004, 05:06 PM   #29
Jamh is offline Jamh  United States
diyAudio Member
 
Jamh's Avatar
 
Join Date: Dec 2003
Location: sacramento
Default Re: Re: Free 1 uF 10% 63V film caps for the mox filter

Quote:
Originally posted by tiroth

Very generous of you Jens. Sure, I'd be happy to distribute. Shoot me an email re shipping cost.

I'm interested in the above. Please let me know. I'm also interested in a group buy for the components, if there is one.
  Reply With Quote
Old 7th July 2004, 05:26 PM   #30
tiroth is offline tiroth  United States
diyAudio Member
 
Join Date: Dec 2001
Location: Pittsburgh, PA, USA
If anyone feels it worthwhile, I'm willing to coordinate purchase of the film caps. This is unlikely to make sense unless you know that you need Jens' caps and want to get it all shipped for one cost--the price breaks aren't huge.

For example, the 100nF Wima ($0.79) becomes $0.57 at 100 units. The cheaper 100nF MKT1826 ($0.21) only drops to $0.17.

I'm not willing to kit out all the resistors though. Chipco3434, are you serious about doing this? If so, it would make much more sense to have the caps sent to you.

People who have an interest, please email me to avoid cluttering the thread. Let me know about how many caps you want and if you want the polyester or the Wima in the spreadsheet. If I think there is sufficient interest (I would be surprised, honestly) I'll start a thread.
  Reply With Quote

Reply


Hide 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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



New To Site? Need Help?

All times are GMT. The time now is 09:42 AM.


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