National RF’s prototyping circuit boards (Type NPC)
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National RF’s prototyping circuit boards were developed to aid in RF circuit
protyping, where extensive ground plane on the board is often required for
proper circuit operation at high frequencies. On all of the NPC series, a grid
pattern is etched onto one side of a single-sided copper-clad board, each
connected to the ground plane by a small trace. After the prototype board is
layed out, the board lands, which are required to be soldered to components and
insulated from the ground plane, are disconnected by removing the
interconnecting trace with a scribe or other sharp instrument. The remaining
lands are thus still left connected to the ground bus to form the ground plane.
Discrete components and parts may be either “surface soldered” to the lands, or
a hole may be drilled into the land and the components mounted on the reverse
side of the board and then soldered to the land. Hence, a ground plane may be
established with a single-sided PC board for high frequency prototyping
applications to about 30 MHz. The NPC series are made from composite circuit
board material only.
The NPC-D series have an identical grid pattern side on one
side, but offer a complete ground plane on the reverse side. Hence a true
ground plane is established when prototyping VHF circuits above 30 MHz. Both
series of prototyping boards include a single wide trace which may be used as a
power bus for circuit power application. The NPC-D series are offered only in
the more effective fiberglass circuit board material, and are suitable for
prototyping work above 30 MHz.
Type NPC-1 5" X 3 1/2" $5.50
Type NPC-2 3 1/8"
X 2 1/4" $3.50
Type NPC-3 2 3/8"
X 1 1/2" $2.95
Type NPC-1D 5" X 3
Type NPC-2D 3 1/8"
X 2 1/4" $5.95
Type NPC-3D 2 3/8"
X 1 1/2" $4.50
California residents must add 7 3/4 % sales tax.
Shipping and handling are extra
Overseas Customers: Please note that an additional overseas shipping
charge will be applied to your order. National RF will notify you of the exact
amount of shipping to your country via e-mail, after your e-order is placed. The
customer is responsible for all and any customs or tarrif charges applied to your
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