New Products

Monlolythic Ceramic Capacitor 50V, Y5V dielectric. 5mm pitch 4.7uF

AHD input to HDMI Video Output Converter

This unit converts AHD/CVI/TVI/CVBS video from a CCTV camera (up to 5MP) to standard HDMI video.

Ideal for connecting a standard CCTV camera directly to a TV or monitor, without the need for a DVR.

The converter also has a BNC output, allowing you to connect a camera to a screen as well as a DVR

Resolutions Supported

CIF, D1, 1MP, 2MP, 5MP

Package Contents:
HDMI converter
Manual
USB cable

5V UPS Uninteruptible Power Supply 15W 3A

• Automatic seamless switching to battery power in case of power failure
• Overcharge battery protection
• Overdischarge battery protection,
• Overtemperature battery protection
• Overcurrent battery protection
• Battery status Led

UPS output: Terminals marked UPS+ (positive)  and UPS- (ground))

Use with USB power OR external power input (Terminals marked 5V+ (positive) and 5V- (ground))

Use with 2 x 18650 batteries or with extrernal 3.7V lithium batteries 

Available also with 9V and 12V output

5W Guitar Valve Amplifier Kit - Fender 5F1 Champ Style   

  This is our take on the famous Fender Champ Guitar Amp from the 50s. It offers a beautifully rich, creamy sound with a lovely warm bass and mid response that you can only get from a valve amp. When we tested this kit for the first time it's sound surpassed all of our expectations and we are all super excited to share this experience with you. 

  Using a high voltage DC-DC boost converter instead of the conventional power transformer and rectifier valve, this amp kit is lighter, smaller and more cost effective without compromising on the performance. Since the boost converter requires only a 12V DC input, this amp can also be used on the go, and can even be powered by 12V batteries. Our design also includes a cathode bypass capacitor on the first triode gain stage to increase the gain, this is a common modification done to the original amp and we think this makes it sound better. If you want the original sound this capacitor can be omitted.

This amp comes with new old stock Soviet Reflektor 6П6С beam tetrode output valve and JJ ECC83 double-triode.

We recommend using a 12V power supply that can supply at least 5A like this one BSM1250. 

The following components are included in this kit:

• Step by step instruction manual
• 68kΩ ½ Watt carbon film resistor x 1
• 1MΩ ½ Watt carbon film resistor x 1
• 1MΩ 16mm logarithmic potentiometer x 1
• 1.5kΩ ½ Watt carbon film resistor x 1
• 100kΩ ½ Watt carbon film resistor x 1
• 22kΩ ½ Watt carbon film resistor x 1
• 10kΩ ½ Watt carbon film resistor x 1
• 220kΩ ½ Watt carbon film resistor x 1
• 470Ω ½ Watt carbon film resistor x 1
• 270Ω 0.4 Watt metal film resistor x 1
• 1.1kΩ 0.4 Watt metal film resistor x 1
• 1kΩ ½ Watt carbon film resistor x 1
• 22nF 305V polypropylene capacitor x 1
• 8µF 450V axial electrolytic capacitor x 1
• 16µF 450V axial electrolytic capacitor x 1
• 22µF 35V tantalum capacitor x 1
• 100nF 50V multi-layer ceramic capacitor x 1
• 1µF 50V multi-layer ceramic capacitor x 1
• 1.5µF 35V tantalum capacitor x 1
• 6V6GT or 6П6С beam tetrode valve (Reflektor - Soviet) x 1
• ECC83 or 12AX7 double triode valve (JJ - Slovak) x 1
• LM317T 1.5A adjustable voltage regulator x 1
• 6.3mm PCB-mount switched jack socket x 1
• 6.3mm panel-mount switched jack socket x 1
• 2.1 x 5.5mm DC socket x 1
• 5mm red LED x 1
• B9A PCB-mount valve base x 1
• Octal PCB-mount valve base x 1
• High voltage DC-DC step up boost converter x 1
• 5F1 Output transformer x 1
• 10A SPST toggle switch x 1
• 1 foot of 6A double core power cable x 1
• 1 foot of 42 strand speaker cable x 1
• 1 foot of high voltage power cable x 1
• Finned heatsink x 1
• PCB screw terminal x 1
• M3 nut and bolt x 1
• Heatsink thermal pad & bush x 1
• PCB x 1

To assemble this kit, you will need the following tools:

• Soldering iron
• High quality solder
• Side cutters
• Cable stripper

 This kit will fit nicely in a G116 enclosure (Hammond 1550G).

Sturdy Dual Jack to Dual XLR Lead - 6 Metre Long

Conductor: 2 x 12 Strand 0.1mm diameter pure copper
Cable Outer Dimensions: 5mm (diameter) x 10mm

Sturdy Jack Plug to Male XLR Lead - 6 Metres Long

Conductor: 15 Strand 0.1mm diameter pure copper
Cable Outer Diameter: 6mm 

Lead joining 2 6.3mm (1/4") Jacks to 2 x 3 pin XLR Female Line Sockets (Latching) using High Quality Screened Cable 6M Long

A durable, high quality, shielded audio lead with pro quality, die-cast XLR female connectors and 6.3mm mono jack plugs, offering exceptional sound and reliability. Made with twinned high-grade cable; pure copper conductors and cotton-reinforcement; soft-grip, anti-tangle, rubberised jacket; and machine-soldered connections.

• Length: 6m
• Cable diameter: Twin 5mmØ (5 x 10mm)
• Conductors: 2 x 12 strand, 0.1mmØ pure copper
• Connectors: 2 x female XLR, 2 x 6.3mm mono jack plug

8 Piece Screwdriver Kit with Carry Case

9V UPS Uninteruptible Power Supply 15W 1.6A

• Automatic seamless switching to battery power in case of power failure
• Overcharge battery protection
• Overdischarge battery protection,
• Overtemperature battery protection
• Overcurrent battery protection
• Battery status Led

UPS output: Terminals marked UPS+ (positive)  and UPS- (ground))

Use with USB power OR external power input (Terminals marked 5V+ (positive) and 5V- (ground))

Use with 2 x 18650 batteries or with extrernal 3.7V lithium batteries 

Available also with 5V and 12V output

Line Preamplifier with Tone Control

A high quality, low noise HiFi pre-amplifier. Ideal for attenuating or boosting a line level signal before going to a power amplifier. 
The bass and treble controls allow you to correct the tone of the source signal.

* RCA and 3.5mm inputs & outputs
* Active/passive switch
* Small form-factor 

Power supply required (not included) : 12V DC 500mA min. 2.1mm x 5.5mm
Frequency response 20Hz-20kHz
Dimensions: 88 x 52 x 38mm

4A DC-DC Boost Step Up Voltage Regulator

8A 100W DC-DC Step Up & Down Voltage Regulator

4A Buck Boost DC-DC Voltage Regulator

Automatic Centre Hole Puncher

• Precise Punch
• Adjustable spring tension
• Ergonomic design
  

citronic 170.862UK Compact Mixer with DSP, USB Play/Record/PC and Bluetooth

Compact format audio mixer with 2, 4 or 6 mono input channels, a stereo line input and a further mini jack stereo input. Each mono mic/line channel has a combo XLR/jack input with +48V phantom power switchable in pairs for the XLR inputs. Each mic/line channel has a Gain control for matching the input source and a low-cut switch to filter out rumble or handling noise from microphones. Each mono channel also has High/Low EQ controls and an FX level control. Pairs of mono channels can be linked to act as a stereo left + right pair as required. The onboard foot-switchable DSP effects engine has 99 presets for delay, reverb and modulation effects, each of which can be adjusted using two parameter controls. An onboard Bluetooth receiver has an illuminated pairing button and independent volume control. The USB type-A port on the top panel is for playback of audio files or can be used to record the main outputs to a USB storage device or as an external audio device when connected to a laptop. Output is delivered to a pair of balanced XLR connectors to provide low noise operation for high quality studio or live performances.

Weight: 0.875kg
Dimensions: 183 x 182 x 60mm
Inputs: 2 x combo XLR/jack + stereo L+R 6.3mm + stereo 3.5mm
Power supply: 5V DC 1A min. (USB-C adaptor included)
Power consumption max.: 5W
Effects: 99 program DSP (2 parameter controls)
DSP sample rate: 48khz (24-bit)
Audio source: Bluetooth receiver, USB mp3 player/recorder
Bluetooth version: v5.1 (+BR+EDR+BLE)
USB version: v1.1 audio (mp3/wav/ape/flac)
EQ low: ±15dB @ 80Hz
EQ high: ±15dB @ 12kHz
Phantom power: +48V switchable in pairs (XLR inputs only)
Frequency response: 20Hz - 22kHz (±1dB)
Input level: Mic +10dBu max. / Line +22dBu max.
Input impedance: Balanced XLR 2k Ohm, Balanced TRS jack 10k Ohm
THD +N: <0.05% @ 1kHz
Noise: EIN -122dBu (22Hz - 22kHz)
CMRR: >75dB (Mic 1kHz)
Sensitivity: XLR -60 to +10dBu, TRS jack -20 to +20dBu, Stereo -20 to +14dBu
Crosstalk, stereo: >80dB (1kHz fader shutoff)
Outputs: Left + Right balanced XLR, Headphones 6.3mm jack
Max. output level: XLR +22dBu, TRS +20dBu

citronic 170.864UK Compact Mixer with DSP, USB Play/Record/PC and Bluetooth

Compact format audio mixer with 4 input channels, a stereo line input and a further mini jack stereo input. Each mono mic/line channel has a combo XLR/jack input with +48V phantom power switchable in pairs for the XLR inputs. Each mic/line channel has a Gain control for matching the input source and a low-cut switch to filter out rumble or handling noise from microphones. Each mono channel also has High/Low EQ controls and an FX level control. Pairs of mono channels can be linked to act as a stereo left + right pair as required. The onboard foot-switchable DSP effects engine has 99 presets for delay, reverb and modulation effects, each of which can be adjusted using two parameter controls. An onboard Bluetooth receiver has an illuminated pairing button and independent volume control. The USB type-A port on the top panel is for playback of audio files or can be used to record the main outputs to a USB storage device or as an external audio device when connected to a laptop. Output is delivered to a pair of balanced XLR connectors to provide low noise operation for high quality studio or live performances.

Weight: 1.125kg
Dimensions: 232 x 183 x 60mm
Inputs: 4 x combo XLR/jack + stereo L+R 6.3mm + stereo 3.5mm
Power supply: 5V DC 1A min. (USB-C adaptor included)
Power consumption max.: 5W
Effects: 99 program DSP (2 parameter controls)
DSP sample rate: 48khz (24-bit)
Audio source: Bluetooth receiver, USB mp3 player/recorder
Bluetooth version: v5.1 (+BR+EDR+BLE)
USB version: v1.1 audio (mp3/wav/ape/flac)
EQ low: ±15dB @ 80Hz
EQ high: ±15dB @ 12kHz
Phantom power: +48V switchable in pairs (XLR inputs only)
Frequency response: 20Hz - 22kHz (±1dB)
Input level: Mic +10dBu max. / Line +22dBu max.
Input impedance: Balanced XLR 2k Ohm, Balanced TRS jack 10k Ohm
THD +N: <0.05% @ 1kHz
Noise: EIN -122dBu (22Hz - 22kHz)
CMRR: >75dB (Mic 1kHz)
Sensitivity: XLR -60 to +10dBu, TRS jack -20 to +20dBu, Stereo -20 to +14dBu
Crosstalk stereo: >80dB (1kHz fader shutoff)
Outputs: Left + Right balanced XLR, Headphones 6.3mm jack
Max. output level: XLR +22dBu, TRS +20dBu

citronic 170.866UK Compact Mixer with DSP, USB Play/Record/PC and Bluetooth

Compact format audio mixer with 6 input channels, a stereo line input and a further mini jack stereo input. Each mono mic/line channel has a combo XLR/jack input with +48V phantom power switchable in pairs for the XLR inputs. Each mic/line channel has a Gain control for matching the input source and a low-cut switch to filter out rumble or handling noise from microphones. Each mono channel also has High/Low EQ controls and an FX level control. Pairs of mono channels can be linked to act as a stereo left + right pair as required. The onboard foot-switchable DSP effects engine has 99 presets for delay, reverb and modulation effects, each of which can be adjusted using two parameter controls. An onboard Bluetooth receiver has an illuminated pairing button and independent volume control. The USB type-A port on the top panel is for playback of audio files or can be used to record the main outputs to a USB storage device or as an external audio device when connected to a laptop. Output is delivered to a pair of balanced XLR connectors to provide low noise operation for high quality studio or live performances.

Weight: 1.395kg
Dimensions: 282 x 183 x 60mm
Inputs: 6 x combo XLR/jack + stereo L+R 6.3mm + stereo 3.5mm
Power supply: 5Vdc 1A min. (USB-C adaptor included)
Power consumption max.: 5W
Effects: 99 program DSP (2 parameter controls)
DSP sample rate: 48khz (24-bit)
Audio source: Bluetooth receiver, USB mp3 player/recorder
Bluetooth version: v5.1 (+BR+EDR+BLE)
USB version: v1.1 audio (mp3/wav/ape/flac)
EQ low: ±15dB @ 80Hz
EQ high: ±15dB @ 12kHz
Phantom power: +48V switchable in pairs (XLR inputs only)
Frequency response: 20Hz - 22kHz (±1dB)
Input level: Mic +10dBu max. / Line +22dBu max.
Input impedance: Balanced XLR 2k Ohm, Balanced TRS jack 10k Ohm
THD +N: <0.05% @ 1kHz
Noise: EIN -122dBu (22Hz - 22kHz)
CMRR: >75dB (Mic 1kHz)
Sensitivity: XLR -60 to +10dBu, TRS jack -20 to +20dBu, Stereo -20 to +14dBu
Crosstalk stereo: >80dB (1kHz fader shutoff)
Outputs: Left + Right balanced XLR, Headphones 6.3mm jack
Max. output level: XLR +22dBu, TRS +20dBu

Digital stereo PA amplifier with integral media player in a compact housing

This compact class-D amplifier can deliver up to 2 x 55W output, ideal for background music in a shop or restaurant. There is a microphone input that can be used for announcements.

The media player section can select between USB / microSD mp3 player, FM tuner, Bluetooth receiver, 2 stereo line inputs (rear panel RCA) and another line input on the front panel (3.5mm). Playback can be controlled from the front panel or by the supplied I.R. remote control.

Mounting brackets are provided which enable the A22 to be fitted under a counter top or against a wall for discreet installation. Two A22 units may be mounted side-by-side into a 1U rack space, which can serve smaller peripheral zones in a larger PA installation.

Combine with 2 or 4 speaker units for a truly space-saving sound system with comprehensive and easy-to-use functions.

• Compact and easy-to-use control panel
• Bluetooth receiver
• FM tuner
• USB / microSD mp3 player
• Supplied with I.R. remote control
• Supplied with 4 rotatable mounting brackets
• Microphone input with separate volume control

Power supply :230Vac, 50Hz (IEC)

Speaker :      impedance 4 - 8 Ohms (each channel)

Output power : 8 Ohms 2 x 25W rms / 2 x 40W max. (@ 1kHz 10% THD)

Output power : 4 Ohms 2 x 35W rms / 2 x 55W max. (@ 1kHz 10% THD)

Inputs : Line Aux 1 (3.5mm), Aux 2 (L+R RCA), Aux 3 (L+R RCA)

Input : mic 6.3mm jack

Controls Mic Volume, Treble, Bass, Music Volume

Audio source USB/microSD player, FM tuner, Bluetooth

Antenna connection F-type (FM tuner)

Dimensions 215 x 180 x 43mm

Weight 820g

47dB Microphone Preamplifier Kit

A simple but reliable portable RDA5807M-based radio capable of receiving FM radio in the 87-107MHz range. The radio can be tuned via the 2 rightmost buttons (in 100khz increments) and the volume using the buttons on the left. It can be powered by 2 x AA batteries, or via the micro-USB socket provided. This device also has a headphone output (3.5mm jack).

Click here for manual

An Instructables article detailing the assembly process can be found by clicking here

Technical Specifications:

Input Voltage: 3-5VDC
Output impedance: 8Ω
Output power: 0.5W
Receiver frequency: 87MHz-108Mhz
Dimensions (fully assembled): 107 x 70 x 23mm

Surface-Mounted 18650 Battery Holder for 2 Batteries

Black Rocker Switch Double Pole Double Throw (DPDT) on/on

16A @ 250VAC  

20A @ 125VAC

28mm x 22mm cut out

6.3mm (1/4") tin-plated spade connectors

Rocker Switch Double Pole Double Throw (DPDT) on/on with Green LED

16A @ 250VAC  

20A @ 125VAC

28mm x 22mm cut out

6.3mm (1/4") tin-plated spade connectors

 Rocker Switch Double Pole Double Throw (DPDT) on/on with Red LED

16A @ 250VAC  

20A @ 125VAC

28mm x 22mm cut out

6.3mm (1/4") tin-plated spade connectors

Rocker Switch Double Pole Double Throw (DPDT) on/on with Yellow LED

16A @ 250VAC  

20A @ 125VAC

28mm x 22mm cut out

6.3mm (1/4") tin-plated spade connectors

Hifi Wired Headphones

These incredible rechargeable wireless headphones are great for listening to your music while out and about.

• Built-in microphone for hands free calls

• Driver: 15.4mm dynamic driver
• Diaphragm: PPS
• Frequency Response: 20 - 20,000Hz
• Sensitivity: 115±3dB
• Impedance: 32Ω

ESP32-C3 Microcontroller Development Module with WiFi and Bluetooth 

ESP32-CAM + ESP-CAM-MB + OV2640 + High Gain Antenna, Development Module set with WiFi and Bluetooth 

ESP32-DevKitC-32D Microcontroller Development Module with CP2102, WiFi and Bluetooth 

For full documentation please see the datasheet in the files tab

ESP32-WROOM-32D Microcontroller Development Module  with WiFi and Bluetooth 

USB Sound Card

Plug-and-play Gigabit USB 3.0 Ethernet adapter. Supports 10/100/1000