ELEKIT TU-8500 – Tube preamplifier DIY kit
440,00 € – 596,00 € exc. VAT
Elekit TU-8500 is a tube preamplifier DIY Kit with a phono equalizer (MM/MC). Ideal companion for TU-8200R amplifier. Preamplifier gives four input lines and switchable gain. Kit contains all parts including enclosure.
Description
This is a tube preamplifier DIY kit with a phono equalizer and a lot of great features. Precision phono stage RIAA equalization (CR not NF) supports both MM and MC cartridges. Two low noise OPAMPS (NJM2068DD) are used in the phono equalizer amp circuitry. OPAMP preference are accommodated by use of socket mounts allowing easy substitution of alternative OPAMPS.
Two 12AU7 (ECC82) tubes are used in the line amp stage. Gain is switchable (Approx 1x to 3x). Reduced hum/background noise circuitry includes a low flux leakage R-core transformer, a FET ripple filter for B-power and the tubes are powered by the DC power supply.
Sufficient space has been provided on the PCB for substitution of larger coupling capacitors. Support for 4 different voltage environments including Australia (set during assembly). Ideal complement to TU-8200 power amp.
Kit includes brand new JJ Electronic tubes ECC82 x 2.
TECHNICAL SPECIFICATION
| STOCK TUBES | JJ Electronics ECC82 (12AU7) x 2 pcs. |
| OP-AMP | NJM2068DD x 2 pcs. |
| INPUT TERMINAL | RCA Jack 4 lines (PHONO, LINE1 – 3) 3,5 mm stereo jack 1 line (LINE3 priority) |
| OUTPUT TERMINAL | RCA Jack 1 Line (PRE OUT) |
| POWER VOLTAGE | AC 100V 50/60Hz, IEC Standard inlet Selected from 100V, 115V, 200V and 230V upon assembly |
| POWER CONSUMPTION | 8 W |
| DIMENSIONS | W 252 mm x H 73 mm x D 270 mm (exc. projections) |
| WEIGHT | Approx. 3,1 kg (assembled, exc. power cord) |
| LINE AMP STAGE | |
| – GAIN | x 3,1 (9,8 dB) / x 1,15 (1,2 dB) |
| – FREQUENCY RESPONSE (-3 dB) | 2 Hz – 70 kHz / 2 Hz – 280 kHz |
| – S/N RATIO (IHF-A) | 122 dB / 129 dB |
| – MAX. OUTPUT VOLTAGE | 22 V RMS (1 kHz) |
| EQUALIZER AMP STAGE | |
| – RIAA EQUALIZATION | +/- 0,5 dB tolerance (20 Hz – 20 kHz) |
| – CARTRIDGE | MM (LOW) / MC (HIGH) switchable |
| – GAIN (1 kHz) | [MM] 37 dB / [MC] 63 dB |
| – SN RATIO (IHF-A) | [MM] 108 dB / [MC] 88 dB |
| – INPUT RESISTANCE | [MM] 50 kOhm / [MC] 100 Ohm |
| – MAX. OUTPUT VOLTAGE | 7,4 V RMS (1 kHz) |
Additional information
| Weight | 4,4 kg |
|---|---|
| Dimensions | 30 × 29 × 17 cm |
| Tubes set | Without tubes, JJ Electronic set |
| Assembly service |
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