(Avery Fineman) writes:

In article , "Michael A. Terrell"
writes:

David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

(I missed the original post.) I think you could get it from either
New England Wire or Kerrigan-Lewis, if you were willing to order a
minimum quantity. The "cotton" will be Dacron or something though.

Otherwise I would look on antique radio websites or find some defunct
equipment to disassemble.

Allen

Thanks for the tip, Michael. I checked out the Belden and Alpha web sites
as well as Allied and Newark, and I didnt see anything about D.C.C. or
cotton-covered wire. Perhaps I sould be looking under a different name?


Dave




"Michael A. Terrell" wrote in message
...
David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

thanks,

Dave

Both belden and Alpha made it, so I would start with Newark, Allied, or
another large OEM distributor. Also, see if there is a motor rewinding
shop in your area that might use it on small motors. You might pick up a
partial spool at a decent price.
--


Michael A. Terrell
Central Florida

"David Forsyth" wrote in message
...
Thanks for the tip, Michael. I checked out the Belden and Alpha web sites
as well as Allied and Newark, and I didnt see anything about D.C.C. or
cotton-covered wire. Perhaps I sould be looking under a different name?


Perhaps this is what you are looking for???

http://cgi.ebay.com/ws/eBayISAPI.dll...ategory=72 75

"David Forsyth" wrote in message
...
Thanks for the tip, Michael. I checked out the Belden and Alpha web sites
as well as Allied and Newark, and I didnt see anything about D.C.C. or
cotton-covered wire. Perhaps I sould be looking under a different name?


Perhaps this is what you are looking for???

http://cgi.ebay.com/ws/eBayISAPI.dll...ategory=72 75

In article , "Michael A. Terrell"
writes:

David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

thanks,

Dave

Both belden and Alpha made it, so I would start with Newark, Allied, or
another large OEM distributor. Also, see if there is a motor rewinding
shop in your area that might use it on small motors. You might pick up a
partial spool at a decent price.

I don't think that Belden or Alpha has made that kind of wire for at
least 2 decades. Got both of their big factory catalogs here and
all I find is "magnet wire" in either light or heavy (two coat) plastic
insulation. My new Mouser catalog has only part of two pages
with "magnet wire," both being the equivalent to old "enamel
covered coil wire." Might try the search engine at Digi-Key, but I
doubt there will be any success.

Last I was at a place that rewound electric motors was 8 years
ago and they had only heavy plastic covered "magnet wire."

The old cotton-coverd coil wire was okay 4 to 5 decades ago but
doesn't offer much for coil building except for the cotton insulation
being excellent to absorb shellac that will dry and hold everything
together very nicely. Actually, back in the old days, a ceresin wax
application was more likely to be applied...dried quicker and moved
the product through production faster. I happen to like McCloskey
"Gym-Seal" floor varnish to coat home-wound inductors, solenoidal
to toroidal...it's all petroleum-based, not a polyurethane, and doesn't
come loose in high moisture environments like some polyurethanes.
"Gym-Seal" seems to stick to polyester and polyamide magnet
wire coatings very well.

There's a slight difference in distributed capacity between DCC and
enameled wire, DCC usually being slightly less (any coating applied
over it will change that to not less). Not enough distributed capacity
to worry about in my estimation.

There's a slight difference in inductance for a given coil form dimension
between DCC and enamel-covered, the DCC having slightly less for
the same number of turns. Again, not enough to worry about.

Len Anderson
retired (from regular hours) electronic engineer person

On Fri, 31 Oct 2003 18:09:16 GMT "Michael A. Terrell"
wrote:

David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

Both belden and Alpha made it

How sure are you of this? I don't recall seeing it in the Belden
catalog, and when I built a Tesla coil in the 50s a Belden engineer
helped me (Belden is still located in the town where I grew up, a
GREAT field trip, BTW.) The instructions we were following called for
DCC magnet wire, but we couldn't buy any even then. The Belden
engineer even inquired to see if their prototype shop could whip up a
batch just for us, but they didn't have any way to do it by then.

I suspect that it's been 50 years since anyone in the US has made SCC,
DCC, SSC, or DSC wire.

Everyone remember those?

-
-----------------------------------------------
Jim Adney
Madison, WI 53711 USA
-----------------------------------------------

As I mentioned in another post, I was using good quantities of it (on a
"serious hobby" basis), in 22 - 26 awg until the late 1970's. Curiously,
until that time you could also buy DCC cable, 20 - 26 awg, conductors were
bundled in groups of 11 and the whole assembly was enclosed in PVC and
impregnated with paraffin; this cable again being a specialty item for the
pipe organ market.

I also remember silk covered wire, somewhere around here I have a small roll
of #40 silk covered. I always loved those cute little wooden rolls that old
magnet wire came on, kind of like a giant roll of thread. I am trying to
remember some of the manufacturers, maybe I'll look around and see if I
still have an old spool laying around with a label on it.

"Jim Adney" wrote in message
...
On Fri, 31 Oct 2003 18:09:16 GMT "Michael A. Terrell"
wrote:

David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I
would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

Both belden and Alpha made it

How sure are you of this? I don't recall seeing it in the Belden
catalog, and when I built a Tesla coil in the 50s a Belden engineer
helped me (Belden is still located in the town where I grew up, a
GREAT field trip, BTW.) The instructions we were following called for
DCC magnet wire, but we couldn't buy any even then. The Belden
engineer even inquired to see if their prototype shop could whip up a
batch just for us, but they didn't have any way to do it by then.

I suspect that it's been 50 years since anyone in the US has made SCC,
DCC, SSC, or DSC wire.

Everyone remember those?

-
-----------------------------------------------
Jim Adney
Madison, WI 53711 USA
-----------------------------------------------

As I mentioned in another post, I was using good quantities of it (on a
"serious hobby" basis), in 22 - 26 awg until the late 1970's. Curiously,
until that time you could also buy DCC cable, 20 - 26 awg, conductors were
bundled in groups of 11 and the whole assembly was enclosed in PVC and
impregnated with paraffin; this cable again being a specialty item for the
pipe organ market.

I also remember silk covered wire, somewhere around here I have a small roll
of #40 silk covered. I always loved those cute little wooden rolls that old
magnet wire came on, kind of like a giant roll of thread. I am trying to
remember some of the manufacturers, maybe I'll look around and see if I
still have an old spool laying around with a label on it.

"Jim Adney" wrote in message
...
On Fri, 31 Oct 2003 18:09:16 GMT "Michael A. Terrell"
wrote:

David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I
would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

Both belden and Alpha made it

How sure are you of this? I don't recall seeing it in the Belden
catalog, and when I built a Tesla coil in the 50s a Belden engineer
helped me (Belden is still located in the town where I grew up, a
GREAT field trip, BTW.) The instructions we were following called for
DCC magnet wire, but we couldn't buy any even then. The Belden
engineer even inquired to see if their prototype shop could whip up a
batch just for us, but they didn't have any way to do it by then.

I suspect that it's been 50 years since anyone in the US has made SCC,
DCC, SSC, or DSC wire.

Everyone remember those?

-
-----------------------------------------------
Jim Adney
Madison, WI 53711 USA
-----------------------------------------------

Thanks for the tip, Michael. I checked out the Belden and Alpha web sites
as well as Allied and Newark, and I didnt see anything about D.C.C. or
cotton-covered wire. Perhaps I sould be looking under a different name?


Dave




"Michael A. Terrell" wrote in message
...
David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

thanks,

Dave

Both belden and Alpha made it, so I would start with Newark, Allied, or
another large OEM distributor. Also, see if there is a motor rewinding
shop in your area that might use it on small motors. You might pick up a
partial spool at a decent price.
--


Michael A. Terrell
Central Florida

On Fri, 31 Oct 2003 18:09:16 GMT "Michael A. Terrell"
wrote:

David Forsyth wrote:

Double Cotton-Covered ("D.C.C.") Do they still make this stuff? I would
like to obtain some for winding RF coils for homebrew radio receivers.
Anybody know of a supplier or maybe have some on hand?

Both belden and Alpha made it

How sure are you of this? I don't recall seeing it in the Belden
catalog, and when I built a Tesla coil in the 50s a Belden engineer
helped me (Belden is still located in the town where I grew up, a
GREAT field trip, BTW.) The instructions we were following called for
DCC magnet wire, but we couldn't buy any even then. The Belden
engineer even inquired to see if their prototype shop could whip up a
batch just for us, but they didn't have any way to do it by then.

I suspect that it's been 50 years since anyone in the US has made SCC,
DCC, SSC, or DSC wire.

Everyone remember those?

-
-----------------------------------------------
Jim Adney
Madison, WI 53711 USA
-----------------------------------------------