missin a couple of Resistors

yertzl · 28th December 2005, 07:06 AM

hey
i went 2 RS-compnents 2day for wallin jig2. though the shop doesnt stock everything.
im missing:
1* 8ohm non inductive 20W 5% resistor
8* 16.2ohm 1/2W 1% resistor

i found the 8 ohm on parts express,
but a 16ohm 1/2W 5% was the cloest i could get for the 16.2
plus they have their $50min fee which i wont reach...

so any clues where i can get these last couple from.

much appreshiated jens.

yertzl · 29th December 2005, 06:46 AM

with the 8 16.2ohm 1/2W 1% resistors there are two required results obtained when they are wired in series/parallel:
16.2ohm 2W resistor (wired series and parallel)and
4.05ohm 2w resistor (wired all in parallel)

i was wondering if it would b fine 2 make a slight adjustment on the values by using 2 15ohm and 2 18 ohm in each arrangement giving:
16.5ohm and
4.09ohm.
would this slight change be a significant difference. im not electrically minded....
much aprreshiated

peranders · 29th December 2005, 07:05 AM

What are you going to use these resistors for? What are the precision demands?

yertzl · 29th December 2005, 09:01 AM

im using the resistors for Wallins jig II
R5, R4 are the made up resistors
R1 is the 8ohm
http://mysite.verizon.net/tammie_eri...jig2/jig2.html

i think ill have 2 ship from over seas.
Eric wallin on his page recommends DigiKey BC16.2ZCT-ND (16.2 ohms) or radio shack a 16 ohm... as long as the final value ends close to 16ohm and is measured properly for correct callabration.

but this resistor 16.2 ohm is .6w i have no idea what that does, i assume it would be ok. i think it just means it can adsorb more wattage?

yertzl · 29th December 2005, 09:09 AM

im using the resistors for Wallins jig II
R5, R4 are the made up resistors
R1 is the 8ohm
http://mysite.verizon.net/tammie_eri...jig2/jig2.html

i think ill have 2 ship from over seas.
Eric wallin on his page recommends DigiKey BC16.2ZCT-ND (16.2 ohms) or radio shack a 16 ohm... as long as the final value ends close to 16ohm and is measured properly for correct callabration.

but this resistor 16.2 ohm is .6w i have no idea what that does, i assume it would be ok. i think it just means it can adsorb more wattage?

AudioFreak · 29th December 2005, 10:21 AM

I don't usually recommend them (there are much cheaper places around for 99% of what most of us need) but Farnell can almost certainly get you what you want and deliver it to your door in a couple of days or less. Will certainly be quicker and cheaper than ordering from overseas.

http://au.farnell.com/

AndrewT · 30th December 2005, 07:45 AM

Hi,
16r2 = two series connected 8r2//1k3 or 18r//160r.
Use 500mW or 600mW 1% for each resistor.
Over rating the dissipation should make no difference to the circuit.

28th December 2005, 07:06 AM	#1
yertzl diyAudio Member Join Date: Dec 2005 Location: Perth	missin a couple of Resistors hey i went 2 RS-compnents 2day for wallin jig2. though the shop doesnt stock everything. im missing: 1* 8ohm non inductive 20W 5% resistor 8* 16.2ohm 1/2W 1% resistor i found the 8 ohm on parts express, but a 16ohm 1/2W 5% was the cloest i could get for the 16.2 plus they have their $50min fee which i wont reach... so any clues where i can get these last couple from. much appreshiated jens.

29th December 2005, 06:46 AM	#2
yertzl diyAudio Member Join Date: Dec 2005 Location: Perth	would adjustment be fine with the 8 16.2ohm 1/2W 1% resistors there are two required results obtained when they are wired in series/parallel: 16.2ohm 2W resistor (wired series and parallel)and 4.05ohm 2w resistor (wired all in parallel) i was wondering if it would b fine 2 make a slight adjustment on the values by using 2 15ohm and 2 18 ohm in each arrangement giving: 16.5ohm and 4.09ohm. would this slight change be a significant difference. im not electrically minded.... much aprreshiated

29th December 2005, 07:05 AM	#3
peranders Electrons are yellow and more is better! diyAudio Member Join Date: Apr 2002 Location: Göteborg, Sweden Blog Entries: 4	What are you going to use these resistors for? What are the precision demands? __________________ /Per-Anders (my first name) or P-A as my friends call me

29th December 2005, 09:01 AM	#4
yertzl diyAudio Member Join Date: Dec 2005 Location: Perth	used in wallins jig II. im using the resistors for Wallins jig II R5, R4 are the made up resistors R1 is the 8ohm http://mysite.verizon.net/tammie_eri...jig2/jig2.html i think ill have 2 ship from over seas. Eric wallin on his page recommends DigiKey BC16.2ZCT-ND (16.2 ohms) or radio shack a 16 ohm... as long as the final value ends close to 16ohm and is measured properly for correct callabration. but this resistor 16.2 ohm is .6w i have no idea what that does, i assume it would be ok. i think it just means it can adsorb more wattage?

29th December 2005, 09:09 AM	#5
yertzl diyAudio Member Join Date: Dec 2005 Location: Perth	used in wallins jig II. im using the resistors for Wallins jig II R5, R4 are the made up resistors R1 is the 8ohm http://mysite.verizon.net/tammie_eri...jig2/jig2.html i think ill have 2 ship from over seas. Eric wallin on his page recommends DigiKey BC16.2ZCT-ND (16.2 ohms) or radio shack a 16 ohm... as long as the final value ends close to 16ohm and is measured properly for correct callabration. but this resistor 16.2 ohm is .6w i have no idea what that does, i assume it would be ok. i think it just means it can adsorb more wattage?


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29th December 2005, 10:21 AM	#6
AudioFreak Warp Engineer On Holiday Join Date: Oct 2001 Location: Queensland, Australia	I don't usually recommend them (there are much cheaper places around for 99% of what most of us need) but Farnell can almost certainly get you what you want and deliver it to your door in a couple of days or less. Will certainly be quicker and cheaper than ordering from overseas. http://au.farnell.com/ __________________ - Dan

30th December 2005, 07:45 AM	#7
AndrewT diyAudio Member Join Date: Jul 2004 Location: Scottish Borders	Hi, 16r2 = two series connected 8r2//1k3 or 18r//160r. Use 500mW or 600mW 1% for each resistor. Over rating the dissipation should make no difference to the circuit. __________________ regards Andrew T.

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