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More Barrington Bay Music Club Membership Benefits!
I have been collecting guitar magazines since I started
playing in the late 80's. I have decided to set up a small library of these
magazines. BBM Club members will be able to "borrow" magazines for a
nominal fee of $1 per magazine. This charge is largely to allow me to
continue to purchase new magazines as well as to replace magazines if any go
"missing" (though I know that won't happen).
Remember, membership is free, and you can join by
coming into the store and filling out the Membership Form, or apply online.
If you sign up online, your card will be here waiting for you.
March BBM Club Special
I've created a guitar players pack especially for BBM
Club members. This pack includes a strap, polish and cloth, a peg winder, a
pick holder and a variety pack of picks.
Retail cost on these items is $25.34 ($28.88 after
taxes), but for BBM Club members it's only $20.00 taxes included.
Additionally, add any set of strings for 20% off or
upgrade the strap and take $8.00 off the cost of the new strap.
This offer is only good until March 31.
Jam Sessions
We've now completed two cycles of Jam Sessions; these
get better and better.
The acoustic jam on Feb 11th was attended by about nine
guitarists... and a ukulele player. Nigel d'Eon brought his
skull-and-crossbones case containing his ukuleles, and astounded quite a few
people with his ability and showmanship. I was amazed that a ukulele could
be made to sound like that.
The acoustic jam brought out a few other new people,
and everyone had a good time playing and learning from one another.
February 25th's electric jam wasn't attended by as many
as the first, but this allowed players more time to play without having to
worry about letting others play.
Nigel also brought his ukuleles to this and was
gracious enough to let a few other players try one of his electric acoustic
ukes.
I took a few pictures and have put them in the
Jams Gallery.
Tech Talk
This month I want to talk about pickups. This will be
a multi-part article due to the huge amount of information about pickups.
This article will discuss what a pickup is and how it works.
A guitar pickup is a simple electro-magnetic device.
In its simplest form, the standard "single coil" guitar
pickup, as fitted to Tele or Strat style instruments, the pickup consists
of (usually) six permanent magnets, with several thousand turns of fine
copper wire wound around them.
To those of you who still remember physics lessons in
school, this should bring to mind the definition of a basic generator or
dynamo - "The production of an electrical potential difference (or voltage)
across a conductor situated in a changing magnetic flux".
Let me explain this: We all know that magnets have a
field around them, it's why you can pull a bolt to a magnet from a short
distance. When the magnets are wrapped in coils of wire, the same magnetic
field exerts itself on the electrons of the copper wire. When a string is
struck, it moves back and forth over the magnet interfering with the
magnetic field, causing it to change or flux. The magnetic flux created
moves electrons through the wire at specific rates or frequencies which the
amplifier then amplifies and converts into sound through the speaker.
Anyone who has played a single coil pickup knows they
are equally effective at picking up stray 50 or 60Hz fields radiated by AC
mains, wiring and equipment as they are at picking up the vibration of the
strings! This led to the development of the "humbucking" pickup. This is
again a simple device, imagine two single coil pickups placed side by side
and both connected in series (one after the other)- if these pickups were
identical, then they would both pick up the same amount of string vibration
and background hum: the voltages would be added together but the ratio of
signal to noise would be the same.
The clever twist that makes the humbucker so effective
is that in one pickup, the permanent magnets are effectively mounted upside
down and the coil is reversed. What this means is that the pickup will have
a bar magnet wide enough to cover both coils, where one half of the pickup
will have the polepieces touching the magnetic "north" side of the magnet
and the other half will touch magnetic "south". The "south" coil will be
wound in the opposite direction of the north coil.
This effectively means that the signal produced by the
vibrating string is unchanged, whereas the hum signal produced by pickup of
stray magnetic fields is reversed (remember that the string signal is
produced by the interaction of the magnet and the coil, but the hum is
purely picked up by the coil). When the signals from the two coils are mixed
together, the signal from the vibrating strings is effectively twice that of
a single coil, but the hum signal is reduced to almost zero, as the hum
signal from the two coils have opposite polarities.
Changing the pickups in your guitar could be the
difference in making a crappy guitar good, a good guitar great, or a great
guitar spectacular. Come by the store and we'll discuss pickup options and
costs, as well as try to answer any questions you have. We do guitar
repairs and will replace your pickups for you.
Next month we'll talk about the different types of
pickups and the different sounds they produce.
Rentable Space
I've been approached by a local band to know if I'd be
willing to rent out the store (after hours) for practices. I haven't made a
final decision as of yet, but I'm curious how many bands are looking for
jam/practice space and whether this would be worthwhile.
If you or your band are looking for a place to jam or
practice, contact me through the store or the website with your information
and preferred days, and if there's enough interest I'll draw up a schedule
and fee structure.
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