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ELEKIT TU-8100

PCL86 SINGLE STEREO TUBE AMPLIFIER DIY KIT

HIGH QUALITY DIY (DO-IT-YOURSELF) KIT

ELEKIT TU-8100

SIMPLE STEREO TUBE POWER AMPLIFIER

This is a compact single stereo power amplifier kit with utilising PCL86 (14GW8) tubes. Equipped with 2 input terminals - one standard RCA LINE IN at back and the high-sensitivity stereo mini jack at front which can be directly connected to a portable music player. Amplifier is powered by external universal AC adapter (100 - 240 VA) so that the amplifier can be used worldwide.

Thanks to its structure of generating high voltage for vacuum tubes through the built-in inverter circuit, no hum noise is generated. With simple changing the jumpers on the PCB, ECL86 (6GW8) can also be used instead of PCL86 (14GW8) regardless of the voltage difference.

Amp is equipped with microcomputer to enable a soft-start and B power delay after heater power soft start - like what a rectifier tube does. Microcomputer also monitors 6 key voltages and shuts down both the heater and the B-power source when there is a problem, and indicates it by flashing LED.

Tubes are covered by tube protectors made from high temp. resistant Nylon 66. Those protectors prevents user from touching the hot tubes and also protects the tubes from mechnical breakage and lowers the possible resonances.

TU-8100

TU-8100 with PCL86 tubes

TUBES

Comes with PCL86 tubes, but also supports ECL86. Correct tube selected by jumper on the PCB

POWER ADAPTER

Universal AC adapter (100-240V) for worldwide use

MIXING FUNCTION

Signals from both inputs are amplified and reproduced the same time

TUBE PROTECTORS

To prevent touching the hot tubes and to prevent tubes breakage. Made from high temp. resistant Nylon 66

TECHNICAL SPECIFICATION
VACUUM TUBES PCL86 (14GW8) x 2
RATED OUTPUT 2W + 2W
RATED INPUT 500 mV (INPUT-1)
150 mV (INPUT-2)
FREQUENCY RESPONSE 23 - 33000 Hz
RESIDUAL NOISE 40 µV (IEC WEIGHTING)
FREQUENCY RESPONSE 20 Hz - 50 kHz (-3 dB)
SPEAKERS IMPEDANCE 4 - 8 Ω
OUTPUT TERMINALS Binding terminals (banana plug usable)
SUPPLY VOLTAGE DC 12V ~2A (fixed)
AC ADAPTER World compatible 100 - 240V / 12V @ 4.17A switching power supply
DIMENSIONS W 142 mm x H 136 mm x D 178 mm
(including projections)
WEIGHT Approx. 1,8 kg
Assembled, excl. AC adapter
It is possible to install inside chassis the USB-DAC kit PS-3249 (purchased separately) which gives the possibility to utilise direct digital output from computer systems.
Specification of the product are subject to change without prior notice. Colors of the product may look different than presented on pictures.

DIY - DO IT YOURSELF

Please remember that this is a DIY kit. It means that YOU will have to build it yourself using assembly manual. The kit includes all electronic and mechanical parts (including tubes and housing) required to build a ready to work, high quality tube preamplifier. It should take 4-5 hours to construct and it will need soldering. You should have some tools and soldering skills. There is not included interconnects and the power cable is Japanese type, you will need a proper cable for your country.

TOOLS REQUIRED

Although building this kit is not hard, you will need some skills and tools. A multimeter is not required but can be useful.

  • Phillips screwdriver
  • Diagonal cutter
  • Longnose pliers
  • Scissors
  • Scotch tape
  • Hexagonal wrench
  • Soldering iron

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