Subject: Re: Coil winder
Date: 7/19/2003 12:41 PM Central Daylight Time
Post by Alan DouglasHi,
Morris coil winders are cute and fun to play with for a few hours,
but after that, they go on the shelf and are never needed again.
Maybe correct, maybe not, depends on situations.
- how many times you'd like to make a set but you stops
when you arrive at coils? (In Italy there are not so much parts
available)
- how much time you spend in searching a coil for a an old radio
and how will work fine that one you bought as good used as last resource?
- how much time NOS or good used coils will be available on the market?
Then i tought that a coil winder takes few space in the shell,
doesn't eat or scream and never needs to go in the garden for pissing.
Would take time to build it? Yes, a piece at a time, like all projects,
but this time for something useful.
Alan, following you, this hobby deads quickly, how often we spend
lot of time restoring a radio that in the best of cases goes
in the living room and how much time in a year we hear *all* our radios?
I believe it makes part of the game of hobbies, become mad for a radio,
sometimes spending more money in repairing them than looking
for a just done on eBay.
Post by Alan DouglasSomeone, I think Lindsay Books, sells plans for making one. It's
been mentioned here before, about a year ago, so a google search
True, a friend of mine gave me that book last year, but
sincerely it appears me too much complicated in doing all parts.
It's a very good project and probably runs better than Morris,
but not so quick to do as appears.
There are some auctions on ebay that have screenshots
of the book, search for item 3036266265 .
--
^___^
Daniele
www.tuberadio.it
It depends on your resources, but getting gears cut or cast goes well beyond
the complexity of the parts in the winder in the Lindsay book. All the parts in
it are pretty common. If I built it I believe I would motorize it with a cheap
DC cordless drill motor, and a current limited power supply. That way one could
set the maximum torque below the breaking point of the wire and possibly wind
such things as power tranformer windings, RF chokes or IF coils with very fine
wire. Of course a turns counter with nixie tube readout would be nice too.
An advantage in the basic Lindsay (Gingery) design is the limited torque
in the friction-type hand crank drive - this allows a slippage if there is a
kink in the wire feed, rather than a broken wire. As I remember photos of the
Morris it is a direct gear drive. The biggest problem with the Morris I can see
is that it is enough of a collectible (and often costly) that I would be slow
to make modifications to it to make it work better or do different types of
coils.
If you have shops close by that are willing to make things like gears and
bearings at a low cost, the Morris design is probably a good option. The
machinists in my area want orders for dozens or hundreds of parts before they
would even set up to cut a gear.
Neutrodyne