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Author Topic: Leach Low TIM Amplifier V4.5  (Read 32315 times)

Offline Pinoy_Tech

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Re: Leach Low TIM Amplifier V4.5
« Reply #540 on: May 19, 2012, 10:45:54 AM »
Quote from: Bhong on May 19, 2012, 09:13:46 AM
^ leach low tim 4.5 po ba yang design mo sir?
yes may butas na ang mga ganyang chassis.
manipis na talaga ang mga available na heatsink sa raon.
Oo tol, 4.5 version sya base sa schema na napupulot sa net pero nag adapt lang ako ng
ibang parts na sa tingin ko ay hindi mahirap hanapin sa Raon tapos yung mga leg spacing
medyo nag customized ako para mas komportableng i route ang linya.

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Re: Leach Low TIM Amplifier V4.5
« Reply #540 on: May 19, 2012, 10:45:54 AM »

Offline Pinoy_Tech

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Re: Leach Low TIM Amplifier V4.5
« Reply #541 on: May 19, 2012, 10:56:38 AM »
Quote from: tony on May 19, 2012, 10:12:45 AM
pang- hamba na aluminum yan na inadopt ng mga "booster boys" matagal an panahon na nakalipas...dati makapal yan, pero ngayon parang napakanipis, hindi na ako gumagamit nyan....

pwede ka naman makabile ng 3mm thick aluminum then pa bend no na lang to suit your needs, pwede mo pang lagyan ng fins para maging tunay na heatsink....

sa unity metals sa t. alonzo merong gumagawa nyan....
Opo sir, pang hamba nga yan at nandun ang concentration ko sana para something modular sana pero
it turns out na sablay sa iniisip ko since na di na ako update masyado sa mga parts sa atin. Yung pinapa
bend isa din sana sa option ko pero running out of time na tsaka di rin ako makagala, yung parts ko nga
ipinakisuyo ko na lang kaya na surprise ako ng buksan ko ang aluminum na may butas na pala.

Quote from: tony on May 19, 2012, 10:42:42 AM
these are boards that i have accumulated thru the years joining group buys at diyaudio, these boards are 2oz boards, 2+mm thick and is the real deal...pm me if you are interested....
5pairs and 6pairs leach amp boards....2pairs available for the 10output trannie and 3pairs for the 12 trannies....

Thanks for the offer sir, good stuffs but I prefer dun sa board na ginawa ko sa CAD kasi nandun na ang isip ko since
ginawa ko pa sa PC ang plan at something I want to see the result base sa ating research.
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Re: Leach Low TIM Amplifier V4.5
« Reply #541 on: May 19, 2012, 10:56:38 AM »

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Re: Leach Low TIM Amplifier V4.5
« Reply #542 on: May 19, 2012, 12:23:40 PM »
Quote from: tony on May 19, 2012, 10:42:42 AM
these are boards that i have accumulated thru the years joining group buys at diyaudio, these boards are 2oz boards, 2+mm thick and is the real deal...pm me if you are interested....
5pairs and 6pairs leach amp boards....2pairs available for the 10output trannie and 3pairs for the 12 trannies....

Goldmund Nemesis boards...2pairs available


again....

pde hatiin ung 6 pairs ???
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Re: Leach Low TIM Amplifier V4.5
« Reply #542 on: May 19, 2012, 12:23:40 PM »

Offline BhongTech

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Re: Leach Low TIM Amplifier V4.5
« Reply #543 on: May 19, 2012, 12:31:19 PM »
Quote from: Pinoy_Tech on May 19, 2012, 10:45:54 AM
Oo tol, 4.5 version sya base sa schema na napupulot sa net pero nag adapt lang ako ng
ibang parts na sa tingin ko ay hindi mahirap hanapin sa Raon tapos yung mga leg spacing
medyo nag customized ako para mas komportableng i route ang linya.


maganda nga ang ganyang pagkakalagay ng output sir yun nga lang yung heatsink manipis.
pwedeng naka angle sa pcb foil ang output transistor nito. :)
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Re: Leach Low TIM Amplifier V4.5
« Reply #543 on: May 19, 2012, 12:31:19 PM »

Offline 01110011

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Re: Leach Low TIM Amplifier V4.5
« Reply #544 on: May 19, 2012, 10:14:52 PM »
master t         pareserve ng pcb :)
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Re: Leach Low TIM Amplifier V4.5
« Reply #544 on: May 19, 2012, 10:14:52 PM »

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Re: Leach Low TIM Amplifier V4.5
« Reply #545 on: May 20, 2012, 10:18:53 AM »
Sir Tony pm sent.
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Offline tahpoj

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Re: Leach Low TIM Amplifier V4.5
« Reply #546 on: May 21, 2012, 01:13:07 PM »
sir Tony ygpm.

Thanks...
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Offline tony

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Re: Leach Low TIM Amplifier V4.5
« Reply #547 on: May 21, 2012, 01:22:32 PM »
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Offline tony

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Re: Leach Low TIM Amplifier V4.5
« Reply #548 on: May 21, 2012, 01:22:49 PM »
Quote from: tahpoj on May 21, 2012, 01:13:07 PM
sir Tony ygpm.

Thanks...

answered...
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Offline tony

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Re: Leach Low TIM Amplifier V4.5
« Reply #549 on: May 21, 2012, 01:23:31 PM »
Quote from: Ryu on May 19, 2012, 12:23:40 PM
pde hatiin ung 6 pairs ???

yes, pwede rin dugtungan para maging 9pairs...
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Offline abeTIR

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Re: Leach Low TIM Amplifier V4.5
« Reply #550 on: May 22, 2012, 04:41:41 PM »
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Offline Pinoy_Tech

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Re: Leach Low TIM Amplifier V4.5
« Reply #551 on: May 22, 2012, 08:48:05 PM »
Tnx sis, medyo kulang pa rin ang parts ko tapos yung ibang resistor di ok ang value though sa color
coding konwari ay 33k, sa reading ng dig tester ay 30k & 35k kaya papalitan ko pa. Naobserbahan
ko rin yung ibang leads ng mga 1/4 at 1/2w na resistors medyo may maliliit, madaling maputol
yun pag katagalan.

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Re: Leach Low TIM Amplifier V4.5
« Reply #552 on: May 22, 2012, 09:28:33 PM »
Quote from: tony on May 21, 2012, 01:22:32 PM
answered...

ano pong max voltage pwede gamitin para sa 5pairs board?
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Offline tony

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Re: Leach Low TIM Amplifier V4.5
« Reply #553 on: May 23, 2012, 05:54:16 AM »
Quote from: ñøøþ¡ë™ on May 22, 2012, 09:28:33 PM
ano pong max voltage pwede gamitin para sa 5pairs board?

depende yan sa power trannies mo at mga caps....i'd say +/-90volts is possible....
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Offline abeTIR

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Re: Leach Low TIM Amplifier V4.5
« Reply #554 on: May 23, 2012, 07:41:15 AM »
Quote from: Pinoy_Tech on May 22, 2012, 08:48:05 PM
Tnx sis, medyo kulang pa rin ang parts ko tapos yung ibang resistor di ok ang value though sa color
coding konwari ay 33k, sa reading ng dig tester ay 30k & 35k kaya papalitan ko pa. Naobserbahan
ko rin yung ibang leads ng mga 1/4 at 1/2w na resistors medyo may maliliit, madaling maputol
yun pag katagalan.

Try mo 1% precision resistors sa Alexan marami neto, yun ang mga ginamit ko, mura din lang naman..
Yung differential trannie mas maganda kung match ang Hfe...mas bababa pa ang DC-offset ng amp, yun yung tip sa akin nun ni Brian Pingres ng DIYAudio.

BTW na-etch ko na pala yung tone-amp design mo, hindi pa nga lang ako nakakagala para makabili ng piyesa.. ;D
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Offline BhongTech

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Re: Leach Low TIM Amplifier V4.5
« Reply #555 on: May 23, 2012, 07:42:34 AM »
@Pinoy_tech nice malapit ng matapos.
+1 for you
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Offline tony

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Re: Leach Low TIM Amplifier V4.5
« Reply #556 on: May 23, 2012, 08:11:29 AM »
Quote
1% precision resistors

these are best used in gain determining parts like in the feedback network, emitter resistors and collector resistors of the input stage...
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Offline jyjc

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Re: Leach Low TIM Amplifier V4.5
« Reply #557 on: May 25, 2012, 12:08:25 AM »
Quote from: efren on May 05, 2012, 06:37:11 PM
rubber plug to be exact, it serves as a relief valve, in the event that it fails while operating in a circuit or you accidentally reverse the polarity, it prevents the cap from exploding, the high pressure gases escapes through that hole.
the last thing you'll want is a capacitor twice as big as a can of sardines exploding right in your face :o

i have caps dito na Open na yung Valve(red Button daw na nakatakip sa hole)
question pwede safe pa ba itong gamitin.
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Offline tony

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Re: Leach Low TIM Amplifier V4.5
« Reply #558 on: May 25, 2012, 06:39:43 AM »
Quote from: jyjc on May 25, 2012, 12:08:25 AM
i have caps dito na Open na yung Valve(red Button daw na nakatakip sa hole)
question pwede safe pa ba itong gamitin.


discard mo na yan.....most likely mataas na ang esr nyan...
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Offline jyjc

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Re: Leach Low TIM Amplifier V4.5
« Reply #559 on: May 25, 2012, 07:32:09 AM »
may spare ka pa dyan sir tony.
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Re: Leach Low TIM Amplifier V4.5
« Reply #559 on: May 25, 2012, 07:32:09 AM »
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