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 Forum index » DIY Hardware and Software » MusicFromOuterSpace.com designs by Ray Wilson
Soundlab parts on the cheap
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dylar



Joined: Apr 25, 2011
Posts: 51
Location: iowa

PostPosted: Wed Oct 19, 2011 10:03 pm    Post subject: Soundlab parts on the cheap Reply with quote  Mark this post and the followings unread

http://ifile.it/gy4b5ph
Sourcing parts through Tayda cuts down the price about $200. All of the parts available on Tayda add up to $60 (including shipping) which leaves $110 worth of stuff still left to buy from Mouser. You could cut that down a lot too by sourcing banana jacks/plugs on Ebay or elsewhere (banana hardware adds up to around $90 of the $110 worth of parts that Tayda doesn't sell). I bet you could get the total parts cost to under $100. The link is to an Excel sheet of the parts list I put together. Anyone know where to get cheap banana jacks and plugs?
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circlingcrane



Joined: Apr 16, 2011
Posts: 10
Location: IL

PostPosted: Sat Nov 12, 2011 5:29 am    Post subject: Reply with quote  Mark this post and the followings unread

just saw this..wow thanks for the parts list and catalog numbers. Would love it if MFOS would actually add in part numbers from suppliers in it's parts list. For new person like myself..getting a grasp on ordering parts is very intimidating..kinda keeps me from ordering MFOS PCB's..would be all over ordering all his stuff if #1 the parts list came with supplier numbers OR #2 he offered component kits for everything.

thanks again for this parts list
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optimistic



Joined: Oct 29, 2011
Posts: 2
Location: Arkansas, USA

PostPosted: Mon Nov 14, 2011 2:03 pm    Post subject: Reply with quote  Mark this post and the followings unread

It is a great list. Finding parts is 1/2 the fun of diy...except very time consuming. www.octopart.com comes in handy. Many of the MFOS larger projects have Mouser Lists with Mouser and mfg part numbers. I think the schematic and description....along with the datasheets...provide all the info for the part characteristics and selection. I'm still working that angle. It's a lot of work!

Tough decision is to go with quality parts and higher prices from a USA vendor or roll the dice on (same parts???) from an Asian vendor. Prices are great but there are inconsistent reputations with quality and conterfeits. Good prices from ebay vendors but same issues. I got some resistor and capacitor kits from China but the leads are very thin compared to vishay etc.

It's a difficult call when considering the quality of the MFOS boards and panels.

Tadya looks good and has good reviews.... but pots in plastic cases bugs me....

I'd like to hear other's thoughts on these issues....still learning....
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kjackman



Joined: Sep 05, 2010
Posts: 69
Location: Utah, USA

PostPosted: Tue Dec 27, 2011 6:07 pm    Post subject: Reply with quote  Mark this post and the followings unread

Well, I loaded up on the cheapest parts I could find, the same way you suggested. I started in August of last year (2010). Although I have most of what I'll need for any MFOS project plus a few others out there, I'm still buying parts to stock the basement workshop. For example, in the last few weeks, I bought 100 LM358 dual op amps, 10-20 each of several values of polyester and polystyrene caps, a few high-value monolithic ceramic caps, and a box of 50 NOS (new old stock) Russian 100k pots for pretty cheap.

It's a great way to get started and build stock fast without blowing your budget. Every purchase is low risk, as long as you don't buy too many of any one thing, and yet you can still get several of each. If one part doesn't work out for some reason, you're not out a lot of money. Keep track of where you got everything, so you can get more if the source turns out to be good, and avoid them if bad. This is one thing I neglected to do initially.

My experience so far has been good. I've only had a problem with some of those cheap-ass resistors you mentioned (sometimes the leads are slightly corroded or oily or something and they bubble when I solder them - not very often, but it happens), and a few bad 4700uF electrolytics that got hot and puffy when I used them (after three of these, I threw the whole lot of 5 out).

I haven't encountered any fake ICs yet, but I haven't had a chance to use even 1/10th of my stock yet. So there could be some lurking in there, waiting to bite me in the ass. Alpha pots from Futurlec are great, once you perfect a technique for soldering wire onto the lugless leads. They've been pretty good so far.
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