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Console Modding------ ( Here you can talk about your favorite Consoles ) => PSP's => PSP Phat (1000) => Topic started by: Mythtron on March 29, 2008, 11:10:43 AM

Title: Resistors from OpAmp Electronics...
Post by: Mythtron on March 29, 2008, 11:10:43 AM
Hello

I am about to purchase some resistors from this website called OpAmp Electronics. I'm not really worried about the quality, just wanting some input for my resistors.

191K -
http://www.opamp-electronics.com/catalog/191k-ohm-14w-metal-film-resistor-pack-100-p-806.html (http://www.opamp-electronics.com/catalog/191k-ohm-14w-metal-film-resistor-pack-100-p-806.html)

30K -
http://www.opamp-electronics.com/catalog/294k-ohm-14w-metal-film-resistor-pack-100-p-617.html (http://www.opamp-electronics.com/catalog/294k-ohm-14w-metal-film-resistor-pack-100-p-617.html)

10ohm -
http://www.opamp-electronics.com/catalog/ohm-14w-metal-film-resistor-pack-100-p-1041.html (http://www.opamp-electronics.com/catalog/ohm-14w-metal-film-resistor-pack-100-p-1041.html)

BTW: I am planning on doing a led sound mod.

Thanks
Title: Re: Resistors from OpAmp Electronics...
Post by: sprocketme2 on March 29, 2008, 11:25:42 AM
I just purchased resistors from there and am still awaiting shipment. Very good store and appears reliable. Also I ordered 191k 1/8W resistors  (http://www.opamp-electronics.com/catalog/191k-ohm-18w-metal-film-resistor-pack-100-p-810.html) for cheaper, though I dont if they work for this mod.

Note, you wont need 10ohm resistor for the sound reactive mod.
Title: Re: Resistors from OpAmp Electronics...
Post by: Mythtron on March 29, 2008, 03:06:02 PM
Yea, it is a good store...really I just wanted to know if those parts would work for the mod I'm doing. (I'm not sure about the 1/4W and +/-1% tolerance parts :dntknw: )

To give you a better idea of exactly what sort of mod I'm planning to do, here's a schematic:
(https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fimg296.imageshack.us%2Fimg296%2F4206%2Ffinalschematictx3.jpg&hash=a42dc5e0f1f3ed70143c465726b251fbd52921a8)
BTW: Yes, I do plan on using a single LM386 for both the rear speaker and the led's...that won't be a problem will it?

Thank-You,
Mythtron
Title: Re: Resistors from OpAmp Electronics...
Post by: Mythtron on March 29, 2008, 03:08:00 PM
Oh and the 10ohm resistor...I'll be using it for the trigger activated led's....not the sound mod led's (which will be at other places :cool: ...)

EDIT: Is the above showing correct parallel wiring of the LED's?...cause I'm not a 100% on that... :faint: )
Title: Re: Resistors from OpAmp Electronics...
Post by: SYSTEM aka (Cyberpyrot) on March 29, 2008, 04:18:01 PM
Yea, it is a good store...really I just wanted to know if those parts would work for the mod I'm doing. (I'm not sure about the 1/4W and +/-1% tolerance parts :dntknw: )

To give you a better idea of exactly what sort of mod I'm planning to do, here's a schematic:
(https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fimg296.imageshack.us%2Fimg296%2F4206%2Ffinalschematictx3.jpg&hash=a42dc5e0f1f3ed70143c465726b251fbd52921a8)
BTW: Yes, I do plan on using a single LM386 for both the rear speaker and the led's...that won't be a problem will it?

Thank-You,
Mythtron

Very impresive...
Title: Re: Resistors from OpAmp Electronics...
Post by: Mythtron on March 29, 2008, 07:12:28 PM
Thanks :x: ...I guess it means alot coming from you. But also, can you tell me if the 1/4W and +/-1% tolerance will affect anything in my situation? For example, if I used a 10ohm for say....5 blue leds...?
Title: Re: Resistors from OpAmp Electronics...
Post by: sprocketme2 on March 29, 2008, 08:51:24 PM
OK I checked the sound mod tutorial and it shows 1/8W resistors (https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fimg301.imageshack.us%2Fimg301%2F7274%2Fdsc00018iv8.jpg&hash=a656fcbd83cd9aa7f8c5f5001f19bdfe21425358) like these from OpAmp: (https://acidmods.com/forum/proxy.php?request=http%3A%2F%2Fimg301.imageshack.us%2Fimg301%2F3346%2F191kohm1w8metalfilmresiel2.jpg&hash=904213a6ed0ce0f7ccedd5f3194f900e1cade9fa) (http://www.opamp-electronics.com/catalog/191k-ohm-18w-metal-film-resistor-pack-100-p-810.html) So 1/4W resistors will be fine. And again tolerance is not important.

How did you make that schematic? Its very well done.
Title: Re: Resistors from OpAmp Electronics...
Post by: Mythtron on March 30, 2008, 01:51:32 AM
This is wonderful...now I know that my resistor's are fine! :victory: Thanks sprocketme2!
Quote
How did you make that schematic? Its very well done.
Thanks, I did it in Photoshop...with simple shapes such as squares, rectangles, and circles...and some layer effects. I think that if your pictures are clear and easy to understand, people will be better able to help.

PS: The speaker and the led's going to the same LM386 won't be a problem will it? (ie dimmer leds or softer speaker?)
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