Kits

• Kit listing
• Ultimate2 QRSS kit
• Low Pass Filter
• QRSS Arduino shield
• 30/40/80/160m QRSS TX kit
• Ultimate QRSS kit [retired]

Clocks

Panel-mounting clock

Sidereal Clock

LED matrix clock

Giant Nixie Clock

Radio Controlled Clock

Binary Clock

MSF Nixie 'Scope Clock

G0UPL

Radio G0UPL

G0UPL Talks

G0UPL Workbench

QRSS

30m QRSS beacon

30m QRSS junkbox tx

30m QRSS Si570 beacon

30m QRSS receiver

40m low power QRSS tx

Tropical QRSS

Mediterranean QRSS

Keyer chip

30/40/80/160m QRSS TX kit

XYL QRSS

Ultimate QRSS Kit

QRSS Arduino shield

Ultimate2 QRSS kit

Receivers & Transmitters

CW Transmitter

Unichip 80m transceiver

40/80m CW/SSB receiver

30m Receiver

Radio Ozon

Fredbox: 2m AM tcvr

Crystal Radio

Simple radio receiver

Transistor SW radio

Valve SW radio

Hellraiser transmitter

Other Radio Topics

Crystal Sets to Sideband

Huff-Puff stabilised VFO's

GPS frequency reference

Experimental DDS

DDS vs Si570

Radio-friendly PSU

Poundshop FM radio

Superdrg radio

Crystal penning

Crystal parameters

Antenna tuning unit

QRO dummy load

QRO ATU

Dad's radio circuits

Valve Collection

Phasing CW filter

Varicap diodes

Homemade Components

IF Transformers

All-valve VFO

Antique Bliley crystal oven

Frequency Counters

• Simple frequency counter
• LCD Frequency counter
• RF frequency counter
• Frequency Counter
• BCD frequency counter
• BC221 model T
• HP522

Electronics

Spectrum analyser Mk1

Spectrum analyser Mk2

USB charger

Feedback circuit

Dad's voltmeter

Heathkit signal gen

Power Supply

Simple intercom

Riskometer

Dekatron spinner

Tinyscope

Miniscope

Remote lighting controller

Discrete component logic

Wind speed logger

Wind speed logger Mk2

NBTV

Diode IV curves

Valve PSU

GSM/GPRS data logger

Computers

Viscometer

The great Z80 project

Z80 computer

The Mandelbrot set

Asynchronous TTL CPU

CPCNG notes

F-CPU scheduler

Guest Project Gallery

• LED clock
• 80m CW transceiver
• Polyphase network
• Polyphase receiver
• 80m CW transceiver
• 1-valve QRP CW TX
• Nixie clock
• VFD graphic equaliser

Miscellaneous

Datasheets

101 Things

Monitor recycling

Plasma display terminal

Shop

Most Recently Updated

• Kit listing
• Low Pass Filter kit
• Multimode QRSS Arduino Shield
• G8OQW LCD Connection
• GPS notes
• G8NXD LCD connection
• Solder-mask error
• Right-angle LCD
• Boxed Franklin VFO
• BC221 tuning capacitor

Online Kit Shop

QRSS Transmitter Kit (4) Components (8) Ultimate2 QRSS/WSPR kit (15) QRSS Arduino shield (3)

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