Author Topic: Bruno Putzey's DIY Balanced Preamp Group Buy  (Read 13661 times)

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Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #60 on: Nov 13, 2017 at 05:36 PM »
UPDATE: As per advise by our technical team rochie and tony, only SMTs will be pre-assembled to the PCB, not the through hole components. We will wait for the cost estimate c/o rochie. :D  :D

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #61 on: Nov 14, 2017 at 03:04 PM »
estimate cost for the pcb assembly is 30usd/pc not including components.

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #62 on: Nov 17, 2017 at 07:33 AM »
estimate cost for the pcb assembly is 30usd/pc not including components.

Seems reasonable to me.

Any update on component cost?

Offline tony

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #63 on: Nov 17, 2017 at 07:48 AM »
estimate cost for the pcb assembly is 30usd/pc not including components.

this is with smt resistors soldered in?
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #64 on: Nov 17, 2017 at 11:51 AM »
this is with smt resistors soldered in?
Assembly charge lang sir Tony,additional cost for the smt components.

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Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #65 on: Nov 17, 2017 at 03:03 PM »
@All - aabutin ng 21K for all the boards na assembled na with SMT components with extra parts,medyo mahal dahil sa 1% tolerance nung components and the min order qty na kailangan,pero for sure madami tayong spare na parts :D :D :D :D so need naman ng additional boards hahahahha.

Offline tony

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #66 on: Nov 17, 2017 at 03:06 PM »
sorry rochie, money is tight now, i will have to pass...
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #67 on: Nov 17, 2017 at 03:19 PM »
sorry rochie, money is tight now, i will have to pass...

if boards lang kukuha ka pa din? fabricated na yung boards pero hindi ko pa pinapa ship papunta dito sa manila coz sabi ko antayin muna decision kung ipapaassemble na. 250pcs kasi min order qty per components eh kaya medyo malaki na yung presyo. pero kung susumahin parang mas mura pa din compare sa 4-4.5K na mouser/rs-components price per board.

Offline tony

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #68 on: Nov 17, 2017 at 05:03 PM »
how much kung board lang?
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #69 on: Nov 17, 2017 at 05:23 PM »
how much kung board lang?


nasa 1200.00 yung 9 boards not including shipping.

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #70 on: Nov 18, 2017 at 12:47 AM »
Sir rochie,

1. Can you post the proposed BOM of  the assembler of SMTs (including brand and part number)? A listing similar in format sa diyaudio BOM.. I am interested how our BOM is similar or different from the diyaudio BOM.

2. Duon sa diyaudio BOM, all  resistors  have 0.1% tolerances (except for 2.2M ohm which is 1% tolerance). According to the diyaudio forum threads, critical is R1 to R8 which should have tolerances of 0.1 % and 10ppm . The rest of the resistors are less critical in terms of tolerance and 1% tolareance might be OK.

3. I am still committed to have my board pre-assembled. But I would like to see first the proposed BOM and how it compares to the diyaudio BOM. As much as possible I wish our BOM is very similar to the diyaudio BOM in terms of specs and tolerances. Their BOM is already well proven by 3 batches of group buys already. :D

Sir tony, I hope you will still get two bare PCBs :D

« Last Edit: Nov 18, 2017 at 12:53 AM by romymartinez »

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #71 on: Nov 18, 2017 at 12:56 AM »
Sir parasound, noob, ndtcom would you like us to proceed with the pre-assembled boards?

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #72 on: Nov 18, 2017 at 04:06 PM »
Sir rochie,

1. Can you post the proposed BOM of  the assembler of SMTs (including brand and part number)? A listing similar in format sa diyaudio BOM.. I am interested how our BOM is similar or different from the diyaudio BOM.

2. Duon sa diyaudio BOM, all  resistors  have 0.1% tolerances (except for 2.2M ohm which is 1% tolerance). According to the diyaudio forum threads, critical is R1 to R8 which should have tolerances of 0.1 % and 10ppm . The rest of the resistors are less critical in terms of tolerance and 1% tolareance might be OK.

3. I am still committed to have my board pre-assembled. But I would like to see first the proposed BOM and how it compares to the diyaudio BOM. As much as possible I wish our BOM is very similar to the diyaudio BOM in terms of specs and tolerances. Their BOM is already well proven by 3 batches of group buys already. :D

Sir tony, I hope you will still get two bare PCBs :D



I gave the bom from the link that you've provided but only use 1% tolerance components since according to my friend 0.1% is kinda expensive

Offline ndotcom

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #73 on: Nov 18, 2017 at 08:02 PM »
Sir parasound, noob, ndtcom would you like us to proceed with the pre-assembled boards?

Sorry sir but I have to pass.

Offline parasound

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #74 on: Nov 19, 2017 at 09:32 AM »
Sorry to say, pass din ako @ 21k, bayaran ko na lang yung board kung sakali.. pasensiya na sa istorbo.

Sir parasound, noob, ndtcom would you like us to proceed with the pre-assembled boards?



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Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #75 on: Nov 19, 2017 at 02:49 PM »
Sorry to say, pass din ako @ 21k, bayaran ko na lang yung board kung sakali.. pasensiya na sa istorbo.

Hi Sir parasound, thanks for the update. :D

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Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #76 on: Nov 19, 2017 at 02:51 PM »
Hi All,

It appears that we will just get the 9 bare boards.

Sir rochie, sohow much will it be including shipping?


Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #77 on: Nov 20, 2017 at 04:56 PM »
Hi All,

It appears that we will just get the 9 bare boards.

Sir rochie, sohow much will it be including shipping?



Ill get back at you for the shipping,busy pa friend ko because of the summit/conference he conducted sa Baguio,sayang kung alam ko lang di matutuloy pcb assembly pinabitbit ko na sana sa kanya mga pcb pag-uwi niya dito.

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #78 on: Nov 20, 2017 at 10:16 PM »
Ill get back at you for the shipping,busy pa friend ko because of the summit/conference he conducted sa Baguio,sayang kung alam ko lang di matutuloy pcb assembly pinabitbit ko na sana sa kanya mga pcb pag-uwi niya dito.

OK land yun Sir rochie. Share share nalang sa cost. :D

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #79 on: Nov 20, 2017 at 10:28 PM »
Sorry sir but I have to pass.

Noted Sir, so share share nalang tayo sa cost nung nagawa nang boards. It will not cost that much. :D

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #80 on: Nov 21, 2017 at 11:29 AM »
Noted Sir, so share share nalang tayo sa cost nung nagawa nang boards. It will not cost that much. :D

shipping charge is very minimal lang naman kasi konti lang yung boards, based on my experience wala pang 1KG yun, my friend can send it via LBC since he frequent Hongkong, so he can ship it from there as a "balikbayan" box

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #81 on: Nov 26, 2017 at 09:53 AM »
Hi rochie, kelan kaya dating ng boards? :D

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #82 on: Nov 27, 2017 at 05:04 PM »
Dear All,

As per PM sent to me by rochie, the total cost  for the fabrication and shipping from China to rochie of the 9 boards is P2,100. So that's P233.33 per board. :D

I will deposit P2,1000 to rochie's account to initially cover the cost. :D

Any suggestion on how to collect your payments and the pick-up/shipping arrangements once rochie got the boards? :D

Hi Sirs, just to remove any confusion, let's simplify the list.

1. romymartinez
2. romymartinez
3. tony
4. tony
5. rochie
6. parasound
7. noob
8. ndtcom

1 board left! :D
« Last Edit: Nov 27, 2017 at 05:33 PM by romymartinez »

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #83 on: Nov 28, 2017 at 09:52 AM »
Dear All,

As per PM sent to me by rochie, the total cost  for the fabrication and shipping from China to rochie of the 9 boards is P2,100. So that's P233.33 per board. :D

I will deposit P2,1000 to rochie's account to initially cover the cost. :D

Any suggestion on how to collect your payments and the pick-up/shipping arrangements once rochie got the boards? :D


pag nakuha ko na mga boards i can probably send it out via LBC/JRS to everybody, I think JRS is cheaper for NCR than LBC and they also deliver next day. you can just deposit the shipping charge to my bpi account.

Offline tony

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #84 on: Nov 28, 2017 at 11:11 AM »
rochie, please hold on to my three boards, i will get them eventually....please pm me your bpi account for three boards including shipping,
one board please ship to ndotcom and the other two to me...
how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline noob

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #85 on: Nov 29, 2017 at 06:55 AM »
Sir parasound, noob, ndtcom would you like us to proceed with the pre-assembled boards?
Good am, please pm me the account number so i can make payment for the board. thanks.

Offline tony

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #86 on: Nov 29, 2017 at 07:11 AM »
rochie, if you can bring the boards to Dusit, i will pay in cash...

how do we defend our freedom? by the truth when it is assaulted by Marcos lies....

Offline rochie

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #87 on: Nov 29, 2017 at 07:45 AM »
rochie, if you can bring the boards to Dusit, i will pay in cash...
Hindi ata aabot sa Sat yung board sir Tony.




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Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #88 on: Nov 29, 2017 at 11:18 AM »
HI All,

To clarify, the P233.34 per board covers the cost the board plus shipping from China to rochie's place.

It does not include the cost of shipping from rochie to your place. Pls contact rochie on this regard. :D

Offline romymartinez

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Re: Bruno Putzey's DIY Balanced Preamp Group Buy
« Reply #89 on: Dec 01, 2017 at 01:34 PM »
Deposited to rochie's account the P2,100 "abono" payment for the manufacture of the boards and the shipping cost from China to rochie. :D