Resistors.

[comesect2.0]

Are these 1k or 10k ?....and what's the difference when being used for volume control on a passive mixer?
Just got done painting/rehousing a passive mixer and now want to build some,

2017-09-05 14.09.22.jpg

2017-09-05 14.08.56.jpg

Learning best by taking things apart.

So, what is best resistor for a passive mixers volume control.

[comesect2.0]

and I tend to gravitate toward 10K as a mix buss resistor, though you'll get a fair amount of crosstalk with hot signals.

This is why I ask because never had any crosstalk with this mixer and can't seem to find a color code that matches ^pic to help.

[crochambeau]

and I tend to gravitate toward 10K as a mix buss resistor, though you'll get a fair amount of crosstalk with hot signals.

This is why I ask because never had any crosstalk with this mixer and can't seem to find a color code that matches ^pic to help.

It's kind of difficult to see the colors in the second pic, and I say that because it looks like there might be different values.

The first pic looks like yellow (4) orange (3) red (2) gold (5%) to me, which is a 4300 ohm resistor plus or minus 5%.

10K will be brown (1) black (0) orange (3 more zeros), or brown black black red depending on how many bands they painted, plus a tolerance band (unless it's a super old =/- 20%).
1K will see the multiplier reduced in value by one.

Clear as mud?

Black = 0
Brown = 1
Red = 2
Orange = 3
Yellow = 4
Green = 5
Blue = 6
Purple = 7
Gray = 8
White = 9

I generally use 10K for passive summing, 1K might work okay for a lot of stuff, but the lower you go the more potential issues you can meet. I know some people who have not flinched at connecting two outputs together with a straight bit of wire and called it a day, the notion gives me the EE heebie jeebies but I never heard them complain (this was in a noise application, and is generally bad practice).

[comesect2.0]

for whom ever may need it....



& I think they're 12k ........

[comesect2.0]

10k pots are typically used, though I see 100k & b500k being used as well.... , what if I were to use a b500k for my passive mixer...?

[BetterOffShred]

I would just lift one end with your soldering iron and toss the DVOM on there and check them to be sure!
http://www.ebay.com/itm/12864-Mega328-E ... Swa-dWhWzn
I highly recommend everyone own one of those bee tee dubs.. I bought the less fancy version for $3 and a case for $2.. then some clip leads which I just lock in the chip socket there, and it works on everything. Diodes, transistors of all variety, resistors, capacitors, inductors.. everything. Super handy and it's pretty accurate too.

I can't really tell from the pic what those resistors are, but it looks to me like they have a gold 1% band, and I swear I see a yellow band on the other end.

[comesect2.0]

thats the best I could do (pic) because the bus's are hot glued and the whole thing is balanced on itself ready to snap,Thanks alot for the link.

[BetterOffShred]

Yeah man, sorry I couldn't have been more help there, but seriously if you DIY at all, get one of those Mega328's.. it's Ridonk for like$5. Helped me pick out a good pair of 1 ohm 3 watt resistors for biasing tube amps, really accurate!

[comesect2.0]

Meanwhile painted up this one waiting on parts.

[BetterOffShred]

That's great man! It looks like some kind of super technocolor futuristic corrosion. And I mean that in the best possible way!
Is that a flaming lips ring mod I spy? Dope.
Like the Dune quote in the sig too

[Bartimaeus]

Do you have a multi-meter with an ohmmeter setting? If not, I strongly recommend that you get one. In addition to showing you resistor values, you can use it to test the value of a pot at a setting (which you could potentially replace with a resistor) and just to check if two points in a circuit are connected. Really useful! Plus you'll want to be able to read pin values if you're designing an active mixer.