Elekit TU-8200R & TU-8200VK 6L6GC / EL34 / 6CA7 / KT88 / 6550 Single Ended Tube Amplifier kit
The Elekit TU-8200R is the evolution of the wildly acclaimed TU-879S. The TU-8200 has many enhancements that allow the builder to enjoy exquisite tube audio in just a few nights. Following the Elekit pictorial style of instructions makes for straight forward construction.
We now have 2 versions available, the TU-8200R is supplied with Elekit`s E & I output transformers and the TU-8200VK uses the superior Lundahl LL2777B C-core output transformer.
It has many interesting features, you have the option to use various output valves depending on your taste - 6L6GC / EL34 / 6CA7 / KT88 / 6550. The standard kit is supplied with 2 x JJ 6L6GC power tubes and 2 x JJ ECC82s. You have the option of setting up your output in triode, pentode or ultra-linear mode. So if you like to tube roll this is the kit for you. To change output valves with no modifications there is no need to re-bias. Simply swap power tubes and the newly developed "active automatic bias adjustment function" will adjust the bias to the optimal level for each tube. No need to match tubes or manually re-bias ever again. Additionally, it has a headphone output stage the uses the valve circuity inside.
The R-core power transformer supports 4 different voltage environments 100V, 115V, 200V, and 230V so it can be used anywhere in the World.
The TU-8200R is shipped with 2 x JJ 6L6GC power tubes and 2 x JJ ECC82s to get you up and running. Please note however the TU-8200R supports a wide range of other power tubes such as KT66, KT88, EL34, 6550 (and others) with no modifications and no need to re-bias. Simply swap power tubes and the newly developed "active automatic bias adjustment function" will adjust the bias to the optimal level for each tube. No need to match tubes or manually re-bias ever again.
(with 6L6GC fitted)
- Circuit automatically adjusts bias for the optimal operation of each tube
- 3 amplification modes (triode, pentode and ultra-linear) can be selected using PCB jumpers - Ultra linear (8W + 8W) / Triode (4W + 4W) / Pentode (8.2W + 8.2W)
- FET ripple filter on board for power B for both left and right channels
- Overcurrent protection
- High quality PCB with 70um copper traces (double regular thickness)
- Audio Inputs 1 - 2x RCA, Input 2: 2 x RCA / 3.5mm jack
- Audio Outputs - Speaker impedance selector switch - 8-16Ω / 4-6.3Ω Headphone jack at front
For those who wish to buy the component upgrade kit, we offer 2 types. The first one consists of a complete resistor set change (excluding the 0R47) to Takman Carbon Film resistors and a handful of capacitors. (TOTAL for upgrade kit No 1 is £117.04 + vat).
The second is accompanied by 2 Youtube Videos of the upgrade being done. These are specifically voiced components that target the key signal components. You will need to add the individual parts as listed below to your cart when purchasing your kit. If any are out of stock, please get in contact. (TOTAL for upgrade kit No 2 is £241.09 + vat)
UPGRADE KIT NO.1
(REX50-010) - 2R2 0.5W TAKMAN Carbon Film Resistor x 2 (R53,54)
(REX50-250) - 220R 0.5W TAKMAN Carbon Film Resistor x 6 (R33,34,43,44)
(REX50-490) - 22K 0.5W TAKMAN Carbon Film Resistor x 9 (R17,29,30,59,60,61,62,63,64)
(REX50-450) - 10K 0.5W TAKMAN Carbon Film Resistor x 5 (R18,25,26,27,28)
(REX50-570) - 100K 0.5W TAKMAN Carbon Film Resistor x 6 (R1,2,15,16,55,56)
(REX50-630) - 330K 0.5W TAKMAN Carbon Film Resistor x 10 (R9,10,47,48,49,50,51,52,57,58)
(REX50-100) - 12R 0.5W TAKMAN Carbon Film Resistor x 9 (R3,4,19,20,21,22,45,46,69)
(REX50-330) - 1K 0.5W TAKMAN Carbon Film Resistor x 10 (R5,6,11,12,23,24,31,32,67,68)
(REX50-030) - 3R3 0.5W TAKMAN Carbon Film Resistor x 8 (R35,36,39,40,41,42,47,48)
(REX75-500) - 27K 1W TAKMAN Carbon Film Resistor x 4 (R7,8,13,14)
(ELNAC-115) - 220uF 16V Elna Cerafine Electrolytic Capacitor x 4 (C1,2,5,6)
(ELNAS-140) - 330uF 25V Elna Silmic II Electrolytic Capacitor x 5 - LIMITED SPACE FIT HORIZONTALLY (C13,14,33,34,35)
UPGRADE KIT NO.2 as featured in the 2 upgrade videos
(AMRG2.0-500) 27K 2W Amtrans AMRG Resistor x 2 (R7,8)
(RES-3600) - 27K 1W Audio Note Tantalum Resistor x 2 (R13,14)
(REX50-330) - 1K 0.5W TAKMAN Carbon Film Resistor x 4 (R5,6,11,12)
ZN630-0.10: 0.1uF 630V Mundorf MCap ZN Capacitor x 2 (C9,10)
HTSC12.7, Clear heatshrink 2:1, 12.7mm diameter x (1m) (to insulate body of ODAM capacitors)
Please note that we have used 2 x 0.1uF 630V Jensen Copper Foils in Aluminium Cans, upgrading C3, C4. These are no longer made so are now recommending the V-Cap ODAM in their place.
TU-8200R OUTPUT TRANSFORMERS ARE ALSO AVAILABLE SEPARATELY
For those building their own amplifiers from scratch these output transformers are suitable for single-ended amplifiers that use an output valve such as a 6L6GC, EL34, 6CA7, KT88 and 6550.
Primary winding impedance is 3.5K ohm (red - anode, black - HT) with a ultra-linear tap (yellow) that connects to the screen grid (optional). Secondary winding impedance is 0 ohm(black) - 5 ohm (green) - 8 ohm (grey)
Overall dimensions are 60mm (depth) x 92mm (width, with fixings) x 60mm (height). Lead-out length is 150mm, clips can be easily cut off for hard wiring.
Price (1 off, excluding VAT & P&P) not supplied with IEC lead
TU-8200R - £650.00
TU-8200VK - £850.00
2 x OPT-8200R - £100.00 (original Elekit E & I output transformer for the TU-8200R