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heady

Mini³ group buy from AMB Audio shop

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This is the official Mini³ group buy post.

 

With aaronxp's help, this is the list of stuff for the Mini³ :

 

Common parts for Mini³

----------------------

PCB - Mini³ printed circuit board

L1L, L1R, L1G - Ferrite beads

B+, B- - one set of board-mount battery contacts $10

Vol/Pwr - Alps RK0971221Z05 10KO stereo potentiometer with SPST switch $3.25

U3 - TLE2426CLP precision rail-splitter TO-92 $1.30

D4 - BZX55C12 12V 500mW zener diode DO-35 $0.30

J1 - DC power jack 2.5mm pcb-mount $0.40

J2, J3 - 3.5mm stereo mini phone jack, pcb-mount, isolated $1.20

 

For Mini³ "high performance" edition

------------------------------------

U4 - OPA690ID operational amplifier SOIC-8 $2.70

U5 - AD8397ARDZ dual operational amplifier SOIC-8 $4.90

 

For Mini³ "extended runtime" edition

------------------------------------

U4 - LMH6642MA operational amplifier SOIC-8 $1.90

U5 - LMH6643MA dual operational amplifier SOIC-8 $1.90

 

Total Cost of parts:

Option 1. High performance Edition : 16.45 + 7.60 = US$24.05

Option 2. Extended Run Time Edition : 16.45 + 3.80 = US$20.25

 

 

Group buy participants:

1. DemonicAngelz - one set - option 1 - US$24.05

2. aaron-xp - one set - option 1 - US$24.05

3. ezzo - one set - option 1 - US$24.05

4. mouz - one set - no opamps - US$16.45

5. kross - two set - only OPA690ID - US$38.30

6. redstx - one set - option 1 - US$24.05

7. iewgnail - one set - option 1 - US$24.05

8. aegisofrime - one set - option 1 - US$24.05

9. kahchun - one set - option 1 - US$24.05

10. adn6244 - one set - option 1 - US$24.05

11. 1bit - two set - option 1 - US$48.10

 

 

**NOTE** If you don't see your id here after a reasonable amount of time, please PM me. Thanks.

 

***DATELINE** 29 August Midnight SG time.

 

**Conditions of this group buy**

1. Payment at close of group buy (POSB account number will be PM to you)

2. Shipping to be shared equally among members of group buy (ie not by orders)

3. Self-collect from Tampines or Simei MRT at suitable time, usually night.

4. After payment and order placed with AMB, no withdrawal.

 

 

***************************************************************

 

Payments received as at 2nd Sep 21.40hrs or 9.40pm:

 

***************************************************************

1. 24/08/07 : iewgnail - one set - option 1 - US$24.05 (S$20 deposit).

2. 30/08/07 : redstx - one set - option 1 - US$24.05 (S$36.80)

3. 30/08/07 : aegisofrime - one set - option 1 - US$24.05 (S$36.80)

4. 30/08/07 : mouz - one set - no opamps - US$16.45 (S$25.20)

5. 31/08/07 : 1bit - two set - option 1 - US$48.10 (S$73.60)

6. 01/09/07 : aaron-xp - one set - option 1 - US$24.05 (S$36.80)

7. 01/09/07 : ezzo - one set - option 1 - US$24.05 (S$36.80) + (S$61.80)

8. 01/09/07 : adn6244 - one set - option 1 - US$24.05 (S$36.80)

9. 01/09/07 : DemonicAngelz - one set - option 1 - US$24.05 (S$36.80)

10. 01/09/07 : kross - two set - only OPA690ID - US$38.30 (S$58.60)

11. 01/09/07 : kahchun

 

If you have paid me but do not see your name above, please PM me immediately with the date and time of your payment. Please keep a printed copy of your transaction in case of dispute.

 

 

**************************************************

3 Sep 2007 - 10.30pm - Update

**************************************************

Order has been placed with AMB Lab.

 

 

**************************************************

13 Sep 2007 - 10.19Am - Update

**************************************************

Gentlemen, turn on your soldering irons. The goods have arrived!

 

 

**** Payments for shipping and Paypal charge:

Items subtotal: 333.05

Discount: -19.98

Shipping: 27.65

PayPal fee: 14.12

GRAND TOTAL ($USD): 354.84

As per the condition of the group buy, the amount still owed for the shipping will be:

 

(USD 27.65 - 19.98 + 14.12 ) div 11 members = USD 2 each which is SGD 3.02 each. I don't want to loose money of this since I had no benefit, so I am going to round up to S$3.10 for a nice profit of 8 cents and also to cover cost of the plastic bags... :D

 

It this ok with everyone?

 

 

---------------------------

COLLECTION

----------------------------

These members collected their orders:

1. iewgnail - one set

2. redstx - one set

3. aegisofrime - one set

4. ezzo - one set

5. mouz - one set

6. adn6244 - 1 set

7. 1bit - 2 sets

8. kahchun - 1 set

9. kross - 2 sets

 

----------------------

WAITING FOR COLLECTION

----------------------

1. DemonicAngelz - 1 set

2. aaronxp - 1 set

 

 

 

 

Edited by heady

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I know this might cause some confusion but can i take one set but exclude the items below as i have some spare ones lying around?

 

U4 - OPA690ID operational amplifier SOIC-8 $2.70

U5 - AD8397ARDZ dual operational amplifier SOIC-8 $4.90

 

 

 

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hi heady

can we buy other stuffs from amb website as well?

i'm interested in getting some alps blue velvet pots

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PM-ed heady for one set, option one.

I have questions for the front and back panels.

Any where we can get the them?

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yo Heady, starting another project?? :D I thought you have the PINT already?

I should be interested in 2 sets in 'high performance' version. When's the dateline?

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mouz - ok, can order without the opamps for you. Please confirm your order by posting on this thread.

 

All - If we keep the number of people small, say less than 20, I think I can manage any other items from AMB. Remember, I prefer a time limit to orders, to be fair to those who ordered early.

 

ezzo - please get the front and back panels from AMB separately. If you need help, pm me. This is because the panels are not ready and the whole order will be held back until they are ready. This is why I have not received my Mini3 pcb yet although I believe I was the first in SG to order it.

 

 

u can get the alps pot locally

 

I would be interested in getting some matched jfets, would it be possible

 

Yeah, Wells Audio sells them and Koba too. Although, I found that Wells' pots have very large tabs for soldering point to point for tube amps rather than the pins which is for PCB.

 

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Hi Heady, I want two sets of the Mini3 options 1. If it is possible can I take out the 2 AD8397ARDZ because I have spares? Otherwise it is ok. One thing, what about the other common parts, such as the reisistors and capacitors?

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Yeah, Wells Audio sells them and Koba too. Although, I found that Wells' pots have very large tabs for soldering point to point for tube amps rather than the pins which is for PCB.

 

sorry out of topic, probably someone can just pm me

can i know how much are they selling the alps pot in well's audio?

 

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Thanks heady, count me in for a set than. You need me to PM u my HP or something?

 

1. DemonicAngelz - one set - option 1 - US$24.05

2. aaron-xp - one set - option 1 - USD24.05

3. ezzo - one set - option 1 - US$24.05

4. mouz - one set - option 1 (no opamps) - USD16.45

Edited by mouz

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Hi Heady, I want two sets of the Mini3 options 1. If it is possible can I take out the 2 AD8397ARDZ because I have spares? Otherwise it is ok. One thing, what about the other common parts, such as the reisistors and capacitors?

The other parts will be easily obtainable from Sim Lim Tower. They are just normal through-hole resistors and capacitors.

 

Since there are people who don't want the opamps, it is ok, the group buy is not so complicated yet. I also had some AD8397 left over from the PINT. But mine are AD8397ARZ, ie without the cooling surface.

 

So, kross, please send me confirmation that you want your two sets both without opamps. I have added the dateline to the first post.

 

Re: PINT. Aiyah itchy DIY fever lah.

Edited by heady

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Hi Heady, ok pls give me 2 sets with ONLY 2x "U4 - OPA690ID " as I have 2 extra pieces of AD8397ARDZ. Thank you very much.

 

Haha, ya, diy fever very hard to cure huh.. :P I also just finished another project.

 

Anyway, the Mini schematic build is similar to the PINT, and also using the same op-amp so I was wondering how the sound is going to compare. Any idea from the headwize threads?

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Hi Heady, ok pls give me 2 sets with ONLY 2x "U4 - OPA690ID " as I have 2 extra pieces of AD8397ARDZ. Thank you very much.

 

Haha, ya, diy fever very hard to cure huh.. :P I also just finished another project.

 

Anyway, the Mini schematic build is similar to the PINT, and also using the same op-amp so I was wondering how the sound is going to compare. Any idea from the headwize threads?

 

Kross - order added.

 

I think the sound with the AD8397 should be similar to the PINT. But at least we hope this will be more stable. No one has compared the Mini3 to the Pint yet. I am more interested in the extended runtime edition.

 

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