What cheap-0 parts do you reccomend? (Or could you sell me some?) - diyAudio
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Old 7th February 2006, 11:53 PM   #1
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Default What cheap-0 parts do you reccomend? (Or could you sell me some?)

Now that (thanks to a VERY nice forum member) I have the PCBs, I have to get the rest of the components. I have 2 ChipAmp.com PCB's for LM3886 IC's, and two PSU boards.
Can you reccomend inexpensive parts for use with this kit? I don't want to kill audio quality, but I don't have much money. I'd prefer to buy everything from one place, if only to save money on shipping.

Alternately, if you have appropriate parts, I'd be willing to pay for them.
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Old 8th February 2006, 12:35 AM   #2
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Where in Wisconsin?
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Old 8th February 2006, 01:11 AM   #3
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Madison.
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Old 8th February 2006, 01:26 AM   #4
poobah is offline poobah  United States
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digi-key
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Old 8th February 2006, 02:01 AM   #5
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make a list
check it twice
I used to be naughty
However, I am now making a sincere effort to be nice.

Post what you are looking for and we'll see what happens.
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Old 8th February 2006, 02:18 AM   #6
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Copied from ChipAmp.com:
Components for amplifier boards
2 LM3886TF
4 22 kohm 0.5w compact metal film resistors
2 10 kohm 0.5w compact metal film resistors
2 1 kohm 0.5w compact metal film resistors
2 680 ohm 0.5w compact metal film resistors
2 2.7 ohm 2w metal film resistors
6 100 uf 50v Panasonic FC
2 47 uf 50v Panasonic FC
6 0.1 uf BC polypropylene cap
Components for power supply boards
4 10000 uF 50v Panasonic TS Capacitors (35mm x 30mm low profile)
6 0.1 uf BC polypropylene cap
16 MUR860 On Semiconductor Diodes
4 2.2 kohm 2w metal film resistors
4 1 ohm 2w metal film resistors
2 blue LEDs
2 1N4004 diodes
2 10 kohm 0.5w compact metal film resistors
2 10 uF Panasonic FC Capacitors

If you happen to have any of these on hand, especiially the small capacitors and diodes, I would'nt mind buying them.
A transformer would be nice, too.
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Old 8th February 2006, 09:32 AM   #7
lineup is offline lineup  Sweden
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I think you can relax.
You do not need any special 'brands' components.

This is 2 advices:
- Capacitors in INPUT and FEEDBACK should be MKT polyester or MKP polyprophylene.
- Metal film resistors are recommended.

Misc:
1 Ohm and 2.7 Ohm, 2 Watt ordinary power resistors. Wire wound.
Electrolytic Caps, any normal will do, with correct uF and voltage.
Rectifier diodes can be ordinary Silicon, with correct Ampere rating.


It is people that does not know enough, that thinks Nice Brands will do the magic.
And those with too much money in the bank.


This 'audiophile components' hysteria,
is nothing that comes from National, that makes them LM3886.
Same way, Nelson Pass almost never mentions a special brand for his projects.
And I would think he knows enough ..... and so does National technical staff.


Good ordinary quality components, YES.
Advanced snake oil expensive stuff, NO! Not necessary.
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Old 9th February 2006, 12:22 AM   #8
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Are "el cheapo" RadioShack components acceptable for the PSU?
Also, what identifies a carbon film resistor?
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Old 9th February 2006, 12:35 AM   #9
BWRX is offline BWRX  United States
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Quote:
Originally posted by poobah
digi-key
Do what poobah suggested and order your parts from digi-key. You'll get good parts that are all available from the same place.
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Old 9th February 2006, 12:57 AM   #10
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Digikey has a $25 minimum order. Get the parts from Mouser. There is no minimum that you have to spend.
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