Bottlehead Forum

Bottlehead Kits => Crack => Topic started by: jazzfan78 on January 22, 2015, 08:32:39 AM

Title: Question about Resistors
Post by: jazzfan78 on January 22, 2015, 08:32:39 AM: in the final build of the crack there are 2 resistors that need to be soldered in the TRS headphone jack.
there are 2.49K 1/4W. i have 4 resistors i dont konw if they can replace the 2.
i put here a picture with the mesures of my resistors. i need to know if i can put 2 of them or i need to buy new ones.
in the store i asked them but i think they gave me wrong ones.

picture:

http://i57.tinypic.com/4jnt42.jpg
Title: Re: Question about Resistors
Post by: fullheadofnothing on January 22, 2015, 09:00:08 AM: Can you explain a bit better what is going on? You said you went to a store, are you replacing something you lost? Broke? Missing from the kit?

What scale are you measuring on? 0.27 on the MÎ© scale would be 270KÎ©, which is the bleeder resistor in the power supply. It looks like that is what you have on the left, as the color code is the same.
Title: Re: Question about Resistors
Post by: jazzfan78 on January 22, 2015, 09:06:38 AM: its parts that i bought because i rebuild my crack again.
this parts were measured in UNI-T UT33D volt- meter.

i put them in MÎ© scale. i have there few options

picture:

http://tinypic.com/view.php?pic=2ef2wis&s=8#.VMFYAUesVIw

in which option should i check it?
Title: Re: Question about Resistors
Post by: Grainger49 on January 22, 2015, 09:18:28 AM: To get a good measurement of a 2.49k Ohm resistor put your meter on the 20k Ohm scale.
Title: Re: Question about Resistors
Post by: jazzfan78 on January 22, 2015, 09:20:03 AM: its shows me 2.36k on the two little resistors
on the big one its shows nothing
Title: Re: Question about Resistors
Post by: Grainger49 on January 22, 2015, 09:48:15 AM: 2.36k Ohms is 6% off. They will be fine. The large resistor must be higher resistance.

Put your leads on one of the resistors and start on the lowest resistance range. Then increase the range till you get a good reading.
Title: Re: Question about Resistors
Post by: jazzfan78 on January 22, 2015, 09:53:03 AM: the big shows 0.27 in 20M in the rest its shows nothing. its not releavent because 270k is already installed i only need to know if i can usee this 2.36k or buy new ones from bottlehead
Title: Re: Question about Resistors
Post by: Grainger49 on January 22, 2015, 09:56:26 AM: If it is the power rating of the Bottlehead it will work. Bottlehead might have a lower noise resistor used.
Title: Re: Question about Resistors
Post by: jazzfan78 on January 22, 2015, 09:59:30 AM: thnx. i will use them. hope they will hang on
Title: Re: Question about Resistors
Post by: jazzfan78 on January 22, 2015, 10:50:27 AM: is it dangerous to use 2.36k on crack?
Title: Re: Question about Resistors
Post by: Paul Birkeland on January 22, 2015, 10:52:09 AM: Quote from: jazzfan78 on January 22, 2015, 10:50:27 AM
is it dangerous to use 2.36k on crack?

You would need to be 100% confident that they were 2.36K, and not 236K (that would be a problem).

The value of 2.36K vs. 2.49K is not a problem, and wattage rating for that resistor can be anything at or above 1/4W.

-PB
Title: Re: Question about Resistors
Post by: jazzfan78 on January 22, 2015, 10:54:52 AM: i check it on 20k its 2.36k. thnx i will use it!