Cheap Component Search

Thanks for the replies, guys.

How do I do that?

EDIT:
I found a cheaper LM4040AIZ-4.1 at AliExpress. Most cheaper ones are 3mm SMD, which is a no-no. Maybe I’ll be able to avoid taxes, since my recent purchases have been on eBay, so they can’t say I’m spreading out my order to cheat on customs, or so I hope.

Carefully study the schematic and the pcb layout, find the two corresponding points, bridge them with a piece of wire.

Maybe you can get away with a 4.1V zener diode. The tolerance might not be the 0.1% of the LM4040A, but it should be stable.

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Oh, I get it now. I lost the meaning in translation when I read it the first time. Thanks.

yes!
another way to get a very stable voltage reference with a zener diode (though it will require more components, albeit those are easily sourced) is by buffering one that is stabilized by a capacitor!
basically:

VCC
|
resistor
|__________ Buffer ___ stable output
|. . . . . . . . |
zener . . .cap
|________|
|
gnd

Depending on your opamp configuration, you can even fine tune the buffered output’s voltage, so you can have arbitrary and stable reference voltages!
I used this to make a <1% power supply, so it’s not perfect, but pretty good

(the dots are just for formatting this crude schematic lol)

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I just ordered the last 11 jacks from Tayda. Apparently they’re out of stock for another 5 months. Are there any other places that sell them Tayda cheap (sub 50p) or will I have to splash out on the ‘expensive’ ones?

(can you tell I’m a cheapskate :smiley: )

I briefly looked on AliExpress but I only found pages and pages of 3.5mm jacks. If anyone has any links that would be much appreciated :slight_smile:

Cheers

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You BASTARD :laughing:

Which jacks do you mean? A-1121 is in stock at Tayda, 10,506 of them.

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Well that’s odd. It said that there was 11 in stock and wouldn’t let me add any more to the basket. Oh well.

Time to order 10,505 jacks then :laughing:

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I have no idea how that feels.

(The night before I did order these, they came, they’re about the same thing)

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You have the worst luck with jacks.

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Some AS3340 prices in the US:

Synthcube $5.99 plus $8.39(!!!) shipping to my address (northeastern US).

ModularAddict $7.70 plus $4.15 shipping. Out of stock ATM.

AI Synthesis $7.00 plus $4 shipping.

(I recently bought three from them — and they actually sent three AS3340A chips. This is the impoved version which SynthCube sells for $8.99! However, the AI Synthesis page says AS3340, not AS3340A, and for all I know you might get either. You could ask.)

cabin-globa on eBay $7.20 plus $3.06 shipping.

Cabintech Global $6.33 plus $1.16 shipping! (Untracked, $3.06 tracked.)

Last two apparently the same seller, I haven’t bought from them but they have 99.7% feedback on eBay and their website’s been up since at least 2014.

Added: I see they were mentioned here… closing in on two years ago!

Added: I recently bought one AS3340 from Cabintech Global… No complaints.

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In the UK I have got mine from Thonk £6.72 plus £1.42 shipping. I have just looked in my stash and the one I have has no A postfix, just AS3340

Electric Druid
€5.25 push €3.00 shipping (a quick google says £4.54 plus £2.60

Frequency Central £6.00 plus £2.00 untracked + £1.20 vat. Tracked shipping £7.00

A supplier that I have never used before Soundtronics £5.05 plus £6.95 shipping + £2.40 vat

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I just got some too! to test the A type

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Let us know what you think, in my test I saw no frequency shift at all with pulse width change. Then again the only non-A 3340 I’ve ever had was a CEM I fried before I could test that… :anguished: so maybe I’m missing something…

:anguished: again

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I try not to pay shipping, for me buying a small number of various AS chips over time, I still find it cheaper to by them from Thonk alongside pots, then the order qualifies for free shipping.

I agree though, £7 shipping for a single ic is excessive

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Anyone use these for your builds? Just wondering.

Does anybody have any good leads on power cables (16:10)? I got some from Thonk a while back but they’re all so short. I can’t find any 16:10 on AliExpress and couldn’t find anything at all on Tayda. Any tips? Maybe a spool+crimper as an alternative?

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you mean the euro rack 10 and 16 conductor flat cable ? yeah just get a spool of cable and the connectors its a lot cheaper in the long run and you can make them the exact size you need . you don’t need crimpers you can use pliers or vise but you will be glad you got them if you do get them .

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I bought an old 30m roll of computer ribbon cable, 30 core. Still using it up.

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