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LM4780 Pavel Dudek GB

This group buy is closed


Background

I have tried to convince Pavel for a long time that his design deserves to be more known. Finally he said yes to this group deal. The design will be intellectual property of Pavel so the gerber files will not be published but all other info. The deal will only take place once so sign up if you want to build his amp.

Pavel has written a manual for this (only for him to translate the BOM at the end, a separate english BOM exists) where he explains the design features which are more than for a common [Gainclone]. The basic idea is to make a "complete" amplifier meaning that the pcb contains as much as possible and leaves at little as possible to the builder. The advantage of this is obvious. One of the main reasons for troubles is the wiring which Pavel already has done in the board.

The board is very well done (according to I) and I see no mistakes regarding the grounding which is extremely important when the whole power supply is on the board.

The Offer

CLOSED


What we will offer is a pcb in high industrial quality, thick copper etc. Look at the pictures. We will also offer the copper wire the output inductors. Readymade inductor will cost some because this requires rather much work from me. I offer this as a service for those you want help with this.

Specifications for the pcb

MaterialFR4
Thickness1.6 mm
Thickness copper70+25 um (base copper + plating) 70 = 2 oz.
Protection padsSN100C
Component printWhite, photo resist method

I (Per-Anders Sjöström "peranders") will run the show. I'll take also the support which I can answer for, the rest takes Pavel care of.

Details and Instructions


This is be the home of the group buy for the PA03, a LM4780 based amplifier designed by [Pavel Dudek]
I have created a homepage for this and more text will be added later on.
[PA03 LM4780 homepage]


[The thread about this group buy]

Dates

The boards are delivered and the last ones were posted 21th May. Good luck all wishes "peranders".

Payment

I'll apprecieate if most people will use Paypal.
For swedish citizens, please use paypal, Nordea personkonto or Plusgiro

If you can't use Paypal for some reason there are other alternatives, please take this in private emails to me.

Shipping

You can rather safely choose "regular mail" to most places in the world. I have never experienced that anything has got lost but if you'll add 65 SEK you'll have some insurance.


[Per-Anders Sjöström]


The ordering and payment procedure


1 Deside how many boards you'll order. Write it down on the list.
2 [Email me] so I'll get your email address. Please also email me your contact info, address, phone number. Mention also if Paypal NOT is OK.
3 I'll send you a Paypal bill.
4 You'll pay me.
5 I'll make a note on the list that you have paid.
6 I'll send the goods, write it on the list also.
7 You make a note when you have got the pcb's.

The list, binding

Pcb including readymade inductors = 105 SEK
Pcb including only copper wire for the inductors = 85 SEK

Shipping, see table
Registered mail fee 65 SEK

The sums in the price tables (at the bottom of this page) you have to think about are the two right most columns, one for regular mail oand one for registered mail. the shipping rates are only there for info.

[Exchange rates]
[Calculator]

Shipped

userCountryPcb'sInductorsValue (Currency)Bill sent DDMMYYPaid DDMMYYPayment ackn. DDMMYYAckn. value (currency)Delivered DDMMYYRecieved DDMMYY
spindCanada20195 SEK050407050407050407195 SEK280407.
steff Sweden 40362 SEK100407100407100407362 SEK 280407 .
TomWatson?Canada40390 SEK050407050407050407390 SEK 280407 .
postalratUSA40390 SEK050407050407050407390 SEK 280407 070507
PM650USA20195 SEK060407060407060407195 SEK 280407 .
Tobbe_LindwallSweden40362 SEK090407090407090407362 SEK 280407 020507
Frank Colak Canada 40390 SEK100407100407100407390 SEK280407100507
BearmanUSA24235 SEK090407090407090407235 SEK050507.
Patrik (LTS) Sweden 24221 SEK130407130407130407221 SEK050507.
kyanSweden24221 SEK100407100407100407221 SEK050507070507
BigPoppa?Slovenia12125 SEK090407090407090407125 SEK050507.
jaste (hififorum) Sweden 12116 SEK130407160407160407116 SEK050507.
Jerzy BemPoland12125 SEK060407060407090407125 SEK050507080507
GraydonUSA24235 SEK060407060407060407235 SEK050507.
MennoThe Netherlands24230 SEK050407050407050407230 SEK050507.
jmmartinsPortugal24230 SEK090407090704090407230 SEK050507080507
claiborneUSA24235 SEK050407050407050407235 SEK050507110507
chalkandtalk UK12130 SEK160407160407160407130 SEK050507090507
leadbellyCanada12130 SEK060407060407090407130 SEK 050507 .
Chipco3434USA12130 SEK160407160407160407130 SEK 050507 .
69CamaroSS?396USA24235 SEK050407060407090407235 SEK 050507 100507
kingbowserItaly12190 SEK090407270407270407190 SEK 050507 120507
gkoby USA 24235 SEK 210407 210407 210407 235 SEK050507090507
2004ex USA 24235 SEK220407220407220407235 SEK 050507 .
johngalt47USA24235 SEK090407100407100407235 SEK 050507 .
ArtVark?666Netherlands12125 SEK100407100407100407125 SEK 050507 090507
finneybearUSA24235 SEK090407090407100407235 SEK 050507 110507
vladimirBelgium24230 SEK090407090407090407230 SEK 050507 .
jaybombalousUSA24235 SEK100407100407100407235 SEK 050507 .
agent.5USA24235 SEK100407100407100407235 SEK 050507 .
CeeVee?Portugal24230 SEK090407100407100407230 SEK 050507 .
icewallSweden24221 SEK090407100407100407221 SEK 050507 070507
tlmadsenDemnark24230 SEK300407300407300407230 SEK 050507 .
EvilYoda?USA24235 SEK100407100407100407235 SEK 050507 .
StijnNetherlands12125 SEK090407090407090407125 SEK 050507 .
Jack C.France12125 SEK090407090407090407116 SEK 050507 .
avanceSweden24221 SEK050407050407050407221 SEK210507.
jormajjFinland48460 SEK050407050407050407460 SEK210507.
MB500Sweden12116 SEK050407060407060407116 SEK210507230507
aengusCanada48535 SEK060407060407090407535 SEK210507.
bobgrogerUSA48470 SEK090407090407090407470 SEK210507 .
ppcblasterUSA24235 SEK050407060407090407235 SEK210507.
cddumatGermany48525 SEK090407090407110407525 SEK210507.
lagun49Sweden24221 SEK090407090407090407221 SEK210507.
maydaySweden24221 SEK050407050407100407221 SEK210507.
UrSv?Sweden48442 SEK050407100407100407442 SEK210507.
tangoSweden 24221 SEK100407150407100407221 SEK210507.
tkiuru(Hififorum)Sweden24221 SEK100407100407100407221 SEK210507.
imix500USA24235 SEK090407100407100407235 SEK210507.
builderandySweden24221 SEK110407110407110407221 SEK210507.
NarcissusCzech Republic86850 SEK100407110407110407850 SEK210507.
magilsSweden36337 SEK100407100407130407337 SEK210507240507
wimnetherlands24295 SEK050407050407130407295 SEK210507.
Tomas JSweden24221 SEK050407090407090407221 SEK210507230507
blingAustralia24235 SEK120407120407130407235 SEK210507300507
ShaunSouth Africa48470 SEK100407130407130407470 SEK210507.
cobra2 Norway 24230 SEK130407130407130407230 SEK210507.
dviswa USA 24235 SEK130407130407130407235 SEK210507.
tobias_svenskSweden24221 SEK 140407140407140407221 SEK210507.
tommytubeUSA24235 SEK050407150407150407235 SEK210507290507
yusufIndia22215 SEK150407150407150407215 SEK210507280507
BNK Israel 816985 SEK140407150407150407985 SEK210507.
John.AGSweden24221 SEK090407090407090407221 SEK210507230507
madfinn (hififorum)sweden612674 SEK120407130407 190407 674 SEK210507.
Sture Persson (no memb)Sweden24221 SEK170407270407270407221 SEK210507.
ex007 Sweden 24221 SEK100407100407100407221 SEK270506250507
californiabobUSA24300 SEK090407120407120407300 SEK210507.
trangoSweden510569 SEK090407150407150407569 SEK210507.
userCountryPcb'sInductorsValue (Currency)Bill sent DDMMYYPaid DDMMYYPayment ackn. DDMMYYAckn. value (currency)Delivered DDMMYYRecieved DDMMYY

Shipped


Sweden, all prices in SEK

Substract 20 SEK per board if you want to wind the inductors yourself

Pcb'sWeight gramTariff gramShipping SEKRegular SEKRegistered SEK
1107250(11)22(116)127(166)177
2214250(11)22(221)232(271)282
3321500(22)33(337)348(387)398
4428500(22)33(442)453(492)503
5535100044569619
6642100044674724
7749100044779829
8856100044884934
99631000449891039
10107020005011001150

Europe, all prices in SEK

Substract 20 SEK per board if you want to wind the inductors yourself

Pcb'sWeight gramTariff gramShipping SEKRegular SEKRegistered SEK
1107250(20)40(125)145(190)210
2214250(20)40(230)250(295)315
3321500(40)70(355)385(420)450
4428500(40)70(460)490(525)555
55351000(70)130(595)655(660)720
66421000(70)130(700)760(765)825
88561000(70)130(910)970(975)1035

The world, all prices in SEK

Substract 20 SEK per board if you want to wind the inductors yourself

Pcb'sWeight gramTariff gramShipping SEKRegular SEKRegistered SEK
1107250(25)50(130)155(195)
2214250(25)50(235)260(300)325
3321500(50)80(365)395(430)460
4428500(50)80(470)500(535)565
55351000(80)160(605)685(670)750
66421000(80)160(710)790(775)855
88561000(80)160(920)1000(985)1065



Component group buy