Prototyping and resistors question

[ViolenceOnTheRadio]

lol yeah, seems the mention of the 1 pole 12 position switch went right over your head. I'm not quite a newb though man. You wire ascending values to the 12 lugs and cycle through them hence 1 pole, 12 position....

wow ... thanks for enlightening us with that information .... since you are so knowledgeable, should we bow to your fountain of clever writing?  or am i going "right over your head"?

Well you might want to wipe the scummy build up on your glasses or actually read what a person says before making such an exaggerated statement and completely ignoring clear and present information in my original post that specified my intentions, knowledge and relative question.

Or you could just be a dick and talk down to people like they're stupid and asking about something they indeed didn't and wouldn't ask based on the information in their posting.

[studiostud]

    quick... someone get a fire extinguisher!

[stringsthings]

Well you might want to wipe the scummy build up on your glasses or actually read what a person says before making such an exaggerated statement and completely ignoring clear and present information in my original post that specified my intentions, knowledge and relative question.

Or you could just be a dick and talk down to people like they're stupid and asking about something they indeed didn't and wouldn't ask based on the information in their posting.

I'm not sure that i understand what your intentions are.    Can you provide the forum some "clear and present information"?

[deadastronaut]

   quick... someone get a fire extinguisher!

hi studio stud.!..back to subject...

what ideal values would you use on one of these devices...there could be a lot of choice!.....

10r - 10M ?... 2 or 4 rotaries?...just wondered!..............rob.

[studiostud]

   quick... someone get a fire extinguisher!

hi studio stud.!..back to subject...

what ideal values would you use on one of these devices...there could be a lot of choice!.....

10r - 10M ?... 2 or 4 rotaries?...just wondered!..............rob.

are you referring to resistor rotary switches or to a DIY fire extinguisher?  If you mean the fire extinguisher... then there should be several voltage dividers to keep the heat to dust element ratio down.  I think you might have to utilize a flux capacitor in the handle as well to get a more even spray.  

If you mean the resistor rotaries... for resistance, I actually used pots.  I have two rows of pots, linear and log.  Each row has 1k, 10k, 50k, 100k, 500k, and 1M.  Then I make sure all pots are set to fully open so there is no resistance going through them except for the negligible resistance from the pot lugs and hookup wire.  Then I ran each of the two ends to a 1/4" jack's tip and ring connection and I make a "breakout cable" which is a TRS plug with hookup wire connected to the ring and tip and tinned bare on the other end.  Then I can insert the ends into a breadboard or PCB sockets.  

I did capacitance on rotaries and I could give you the values I used for those if you want.

[ViolenceOnTheRadio]

...I had been ordering from Asia through Taydaelectronics.com which was dirt cheap. Recently though, their shipping cost turned into a system of wallet rape.

Tayda's shipping prices increase pretty quick if you're ordering pots. They're a lot heavier than most anything else we buy. Can't beat their prices on some items though, like PT2399s.

Futurlec is pretty good, but if you order enough stuff, they automatically bump you up to Fedex shipping. When I first bought my parts stock, Futurlec wanted $55 to ship a $150 order. I had them split it into two separate orders, which still ended up costing me like $30 in shipping. They still sent it Fedex.

Mike

The shipping hike at Tayda must have been recent because I ordered a very small quantity of passives that weighed maybe 3-4 ounces at most which equals 4 U.S. postage stamps to mail anywhere in the lower 48 states. Even coming from Asia, the 8 bucks in shipping they charged me was outrageous. It was just a small quantity of caps and resistors. In the past, it has cost between 2-4 bucks for them to ship an order this size to me.

So something in their shipping rationing policy has changed dramatically and I doubt I will ever order from them again. In fact, I'm going to email them and question the charge that nearly doubled the cost of my order which they actually sent unwittingly incomplete .

[ViolenceOnTheRadio]

Just an update if anyone cares.
So I sent the email asking if maybe their system screwed up after filling a cart with an imaginary order.
Equal number of resistors, caps etc. but of different parts and what happened?

Instead of a $7.80 shipping charge on $12 worth of small light parts like the last time, it was $3!
This is what I was used to in the past and why when I spent $20, the package showed up weighing a good pound and was a spoil of riches.
The last order though, I just felt ripped off and taken advantage of especially considering that both mouser and ebay would have been cheaper. 

[frequencycentral]

MIMEO variable capacitor: http://dl.dropbox.com/u/967492/MIMEO.jpg

[ViolenceOnTheRadio]

MIMEO variable capacitor: http://dl.dropbox.com/u/967492/MIMEO.jpg

Frequency I am very interested to know if you've built this circuit and if it's truly worth the effort.
I've built the simple version I've mentioned repeatedly which is just 2 caps on a low resistance pot which works surprisingly well and has a rather linear transition on my multimeter when tested.

But active circuits are always so high performance.