Components

Loose items, connectors, clips

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ATmega328P
ATmega328P High Performance, Low Power AVR® 8-Bit Microcontroller
R49.90
BS170 Small Signal MOSFET 500 mA, 60 Volts N−Channel TO−92 (TO−226)
R5.00
FT-50-43 Toroid for a wide variety of applications such as RF and power input filters, ground-fault interrupters, common-mode filters and also in pulse and broadband transformers.
R5.50
pl259.jpg
The venerable standard HF antenna connector
R20.00
ATmega328P
ATmega328P (AVR)
ATmega328P High Performance, Low Power AVR® 8-Bit Microcontroller. Can be used in radio beacons like the QRP-Labs Ultimate3S. Will be programmed to the current version of the QRP-Labs firmware if required.
ATmega328P High Performance, Low Power AVR® 8-Bit Microcontroller
R49.90
BS170 (BS170)
BS170 Small Signal MOSFET 500 mA, 60 Volts N−Channel TO−92 (TO−226)

Useful for beacons as the Output FET, amplifier, level switch. Good for up to 250mW or even slightly more at HF.

Do NOT use the substitute 2N7000 !! It is not pin compatible and can ruin your PCB.
BS170 Small Signal MOSFET 500 mA, 60 Volts N−Channel TO−92 (TO−226)
R5.00
FT-50-43 Toroid
FT-50-43 Toroid.

Used for a wide variety of applications such as RF and power input filters, ground-fault interrupters, common-mode filters and also in pulse and broadband transformers.

Fair-Rite Part Number: 5943000301
Frequency Range: Low-Medium Permeability, 43 (ui=800) material
Application: Inductive Components
Where Used: Closed Magnetic Circuit
Mechanical Specifications  Weight: 2.000 (g)
Electrical Specs:

Electrical Properties

A (nH)

L

440 ±20%

2

Ae(cm )

0.12900

-1

l/A(cm )

22.90

l (cm)

e

2.95

3

V (cm )

e

0.38000

FT-50-43 Toroid for a wide variety of applications such as RF and power input filters, ground-fault interrupters, common-mode filters and also in pulse and broadband transformers.
R5.50
pl259.jpg
PL259 Connector (PL259)
For many years I was very reluctant to install PL-259 coax plugs. It seemed as if it took a very long time to install one, and then there was a good chance that I would short out the plug, or that it would have an undetected cold-solder joint that would lead to problems, over time, outside. Since my HF antenna was often a multiband dipole fed with open-wire line, the only coax I needed was a short jumper between the radio and the tuner, and this was easily available from many sources. Finally, the day came when I became very interested in antennas, and endless experimentation led to the need for many different lengths of coax, in many different types. It was time to figure out how to (successfully) install PL-259 plugs. Like so many things in life, the secret turned out to be using the right tools, and developing some experience by simply installing plugs. Over a short amount of time, I developed confidence in my technique, and now I trust my work far more than commercial work. In fact one of my more recent repair jobs was replacing the coax plug on a commercial mobile magnetic mount that became intermittent after less than a year of use.
The venerable standard HF antenna connector
R20.00
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