Where do you (EA guys) order caps from? I checked Mouser and they dont have the ones I need, like 1000VDC, .047mfd for example. Also, Im gonna need some potentiometers. how do I determine the values that I'll need? There are no markings on the ones that are there. If I order a cap, is it wise to order the next size up as far as VDC goes? I found a source for some .1mfd, 400VDC, but they have .1mfd, 480VDC. Is that okay? Thanks guys.

Dan Herman.

vance wrote:Where do you (EA guys) order caps from? I checked Mouser and they dont have the ones I need, like 1000VDC, .047mfd for example. Also, Im gonna need some potentiometers. how do I determine the values that I'll need? There are no markings on the ones that are there. If I order a cap, is it wise to order the next size up as far as VDC goes? I found a source for some .1mfd, 400VDC, but they have .1mfd, 480VDC. Is that okay? Thanks guys.

Dan Herman.

I like http://www.tubedepot.com but they might not have that specific cap either. Sometimes you have to parallel one together to get near the right value.

What are your current pots coming out of?

The.1mfd/480 would be a fine stand-in for the .1mfd/400. You can always go up. Just don't go down.

vance wrote: Also, Im gonna need some potentiometers. how do I determine the values that I'll need? There are no markings on the ones that are there.

Dan Herman.

Use a multi meter.

Black probe to the centre pin of the pot, red probe to one of the pins either side of the black pin.

I am fully aware that the terminology I have used is probably incorrect, so apologies for any confusion.

vance wrote: Im gonna need some potentiometers. how do I determine the values that I'll need? There are no markings on the ones that are there.
Dan Herman.

You can find the resistance value of the pot (it's maximum resistance) by metering between the outside two lugs of the pot. The other factor in choosing the proper replacement is determining what taper of pot you need. The two most common are audio/log ("A") and linear ("B"). Set the pot halfway, and meter between the center lug and one of the outside ones. If the resistance is about half the total resistance of the pot, it is linear (type B). Otherwise it is probably type "A" although there are some more exotic tapers out there such as reverse log (type "c").

Now that I think about it, this presupposes that the pots you're replacing actually still work properly. Perhaps try and find a schematic for the circuit? What are you fixing?