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1. Connecting the Bullet PlugŪ to your cables
Please note - Before you connect the Bullet Plug to cables we advise
that you allow the polymer of the plug to adjust to the RCA socket. Simply heat the Bullet Plug flange (red or black section of plug) gently with a
hairdryer, insert into socket and allow the polymer to cool.
The Bullet PlugŪ connector is a product that needs to be handled delicately.
The return pin of the Bullet PlugŪ is small and not as robust as the return on standard
RCA plugs. Of course this also accounts for the improved sound quality.
The Bullet PlugŪ is designed to accept any interconnect, digital or video cable up to
9mm diameter.
This accounts for most cables. (Large cables can also be accommodated if you strip the
outer sheath and feed the insulated conductors through the housing.)
NOTE: Welborne Labs will not be responsible, nor replace a connector free of
charge, if you should break one of the Eichmann plugs.
Step 1
Unscrew the plastic housing and slide the cable through.
The front section of the Bullet PlugŪ comprises two contact pins - the signal (large
pin) and return (small pin).
Both pins have a solder platform at the rear of the pin that is thinner than the rest
of the pin.
The platform heats up rapidly allowing quick and easy soldering.
This means your soldering iron needs only minimal time in contact with the pins to melt
solder. Excess contact time with the soldering iron may deform the plastic polymer housing.
Here's a tip. Insert the Bullet PlugŪ into a secured, but unconnected RCA socket first.
This will free up both hands and allow more precise soldering.
Always support the cable throughout the soldering process, so the weight of the
cable does not exert undue force on the pins.
Step 2
Tin both the wire and platform. And please only use enough solder to make a good
connection - dont drown the platform in solder. For best results use eutectic (flowing type) solder or solder with high silver content together with a
flux.
Step 3
Solder the return conductor to the return (small) pin. If the return conductor of your
cable comprises multiple strands - twist these together and tin before connecting to the return pin.
If the return conductor is in the form of a braid - split the braid, gently twist and
tin before connecting to the return pin.
Ensure that the return conductor is formed (eg. You may need to gently bend the
conductor) so the conductor sits flush in the soldering platform.
The objective is to have the return conductor sit comfortably in the solder platform
without pressure or stress on the wire.
The small dimension of the return pin can make soldering large groups of wires
difficult, however the small size of the pin also contributes to the dramatic sound improvement of the Bullet PlugŪ over standard RCA plugs.
As you complete the connection to the return pin, you may notice that the return pin
can rotate with the tension of the conductor. This is normal.
Simply rotate the pin to a comfortable angle in relation to the signal pin. When you
screw down the outer housing, the return pin is locked in this position.
Step 4
Solder the signal conductor to the centre (large) pin.
Step 5
Re-attach housing.
When re-attaching the housing continue to support the cable to avoid undue force on the
pins.
For 9mm diameter cables, use a silicon spray on the cable to allow smooth rotation of
the outer housing.
Step 6
Secure the grub screw to support the cable. Avoid penetrating the cable -a gentle
securing action is all that is required.
Step 7
Enjoy better sound! Take your time, prepare your conductors prior to connection, use
good solder - and benefit from the improved signal transmission The Bullet PlugŪ can provide.
Please note: The Bullet PlugŪ is a firm fit on RCA sockets to start.
The polymer used in the plug is designed to adjust after a few hours on the socket.
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