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Author Topic: Potentiometer 5 Watt up  (Read 695 times)

Offline Kiks

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Potentiometer 5 Watt up
« on: August 14, 2010, 06:00:04 AM »
May napagbilhan na po ba kayo ng Potentiometer 5 Watt up locally?
Saan?
Meron po ba kaya sa E-Gizmo, Alexan, DEECO...

Salamat.
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Potentiometer 5 Watt up
« on: August 14, 2010, 06:00:04 AM »

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Re: Potentiometer 5 Watt up
« Reply #1 on: August 14, 2010, 09:13:20 AM »
sobrang hirap mag hanap nang wirewound na 5 watts. kadalasan custom made pa.

ano bang target application mo nito. kasi baka pwede na yung 2n3055 then some cheap potentiometer.
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Re: Potentiometer 5 Watt up
« Reply #1 on: August 14, 2010, 09:13:20 AM »

Offline Kiks

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Re: Potentiometer 5 Watt up
« Reply #2 on: August 14, 2010, 07:34:49 PM »
Project po for zener diode trainer, project for Electronics 1.
Gagawing ko po kasi syang variable RL (R2).
Kung yang nasa baba kasi gagamitin ko, nag-ii-spark kasi ito, masira lang.



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Re: Potentiometer 5 Watt up
« Reply #2 on: August 14, 2010, 07:34:49 PM »

Offline nucleus

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Re: Potentiometer 5 Watt up
« Reply #3 on: August 14, 2010, 07:40:27 PM »
Quote from: Kiks on August 14, 2010, 07:34:49 PM
Project po for zener diode trainer, project for Electronics 1.
Gagawing ko po kasi syang variable RL (R2).
Kung yang nasa baba kasi gagamitin ko, nag-ii-spark kasi ito, masira lang.





may rheostat na ginagamit sa lumang mga oven may 500 ohms 1kohms at 250 ohms di ko lang alam kung san makakabili pero mataas ang rating nito
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Re: Potentiometer 5 Watt up
« Reply #3 on: August 14, 2010, 07:40:27 PM »

Offline rdpzycho

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Re: Potentiometer 5 Watt up
« Reply #4 on: August 16, 2010, 01:39:01 PM »
tama, rheostat ang kailangan. tanong niyo sa EE lab niyo kung saan sila nakakabili, or visit Electrical shops sa Raon.

or pwede namang gumawa ng Electronic Load tulad ng sabi ni sir Martin. bale binabago lang ng potentiometer 'yung bias sa transistor at mababago niya rin 'yung current na dadaan sa kanya.
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Re: Potentiometer 5 Watt up
« Reply #4 on: August 16, 2010, 01:39:01 PM »

Offline danny

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Re: Potentiometer 5 Watt up
« Reply #5 on: August 16, 2010, 01:52:56 PM »
i would say yung electronic na nga lang tulad ng sabi ni martin
5W mukhang ang hirap talga niyan,
yung mga lumang dummy load ko sa amplifier
variable yun and it is 10W if i remember it right.
as of now i just use fix
100W and the other is 250W
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Offline rdpzycho

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Re: Potentiometer 5 Watt up
« Reply #6 on: August 16, 2010, 02:00:11 PM »
^ dummy load namin sa office nichrome wire lang, up to 1.5kW. ;D para maging variable, swini-switch lang 'yung mga parallel wires o kaya linalagayan ng aluminum plate para umigsi 'yung wire. ;D
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‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
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Offline danny

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Re: Potentiometer 5 Watt up
« Reply #7 on: August 16, 2010, 02:03:50 PM »
nanang ko po ang laki na nung wattage ah  ;D ;D ;D
parang impyerno na ang dating ah hehehhe
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Offline rdpzycho

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Re: Potentiometer 5 Watt up
« Reply #8 on: August 16, 2010, 02:05:41 PM »
 ;D ;D ;D

OT: kapag maraming parallel, minsan hindi halata na may nakasaksak pala, 'di kasi nagbabaga. magugulat ka na lang kapag nadikit ka, sobrang init. ;D
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Re: Potentiometer 5 Watt up
« Reply #9 on: August 16, 2010, 02:05:51 PM »
^ ... speechless ako.  ;D ;D ;D ;D ;D ;D thanks sir RD.
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Offline rdpzycho

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Re: Potentiometer 5 Watt up
« Reply #10 on: August 16, 2010, 02:20:25 PM »
 ;D

eto nga pala 'yung post ni sir zerowing dati.

http://www.electronicslab.ph/forum/index.php/topic,1754.msg30219.html#msg30219

pwedeng palitan 'yung LM317 ng potentiomer para maging variable, at pwede ring bawasan 'yung transistor.
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‎"Divide each difficulty into as many parts as is feasible and necessary to resolve it."
- Rene Descartes

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Offline nucleus

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Re: Potentiometer 5 Watt up
« Reply #11 on: August 16, 2010, 02:21:37 PM »
ahhh naalala ko na, kung di ako nagkakamali sa silicon hardware meron nyan sa evangelista street
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Offline Kiks

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Re: Potentiometer 5 Watt up
« Reply #12 on: August 17, 2010, 04:54:03 AM »

Pwede pala yan, pero target kasi nito ay mga student.
Nakabili ako sa Alexan, ang mahal! binili ko lang yung potentiometer.
Try ko rin sa silicon hardware sa next punta ko. (salamat nukeleeyus)
Hay! Sana may mas mura!

3590S 100K Ohms - 437 Php
H506 - > 437 Php, <550 Php

3590S



H506


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Offline nucleus

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Re: Potentiometer 5 Watt up
« Reply #13 on: August 18, 2010, 09:15:23 PM »
Quote from: Kiks on August 17, 2010, 04:54:03 AM
Pwede pala yan, pero target kasi nito ay mga student.
Nakabili ako sa Alexan, ang mahal! binili ko lang yung potentiometer.
Try ko rin sa silicon hardware sa next punta ko. (salamat nukeleeyus)
Hay! Sana may mas mura!

3590S 100K Ohms - 437 Php
H506 - > 437 Php, <550 Php

3590S



H506



multiturn yan sir hindi rin 5W

btw kung okay na sa inyo yan
madaming nagkalat na surplus nyan sa bangketa ng raon ;D kung gusto makamura :D mga nakakabit sa servo gearbox assembly
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Offline Kiks

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Re: Potentiometer 5 Watt up
« Reply #14 on: August 19, 2010, 10:14:45 AM »
 :D. oo nga po pala, 2 watts multiturn.
mas ok na ito kaysa sa ordinary na pot.
ohhh. meron dun, thanks tips. next time...
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Re: Potentiometer 5 Watt up
« Reply #14 on: August 19, 2010, 10:14:45 AM »
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