TRICHORD DINO + DINO+

Second-hand, in good condition, without scratches. No original packages.

Pre phono with external power supply

Trichord Dino Pre phono
Specifications
Loading resistance: 33, 100, 1k or 47k ohms
Loading capacitance: 1.1nF (MC), 100pF (MC)
Gain: 48, 52, 63, 70 or 74dB
RIAA characteristics: 20Hz to 20kHz
AC supply: 0-17V, 0-17V 50/60Hz
DC supply: 0-22V, 0-22V
Dimensions: 130 x 58 x 112mm

Trichord Dino+ External power supply
Dino+’  DC Power Supply ‘Dino+’ Power Supply The ‘Dino +’ Power Supply unit is made up of two completely independent and electrically isolated dc supply circuits, one for the positive voltage rail and one for the negative. The specially made low noise audio 80VA toroidal transformer is followed by two independent bridge rectifiers. These are built with discrete ultra fast soft recovery diodes for low RF generation. The bridges are then followed by RC/RC filtering using four high performance, low ESR 1800uF Panasonic capacitors. Two voltage regulators provide solid and stable supply voltages. This level of filtering and regulation provides you with a substantial increase in performance over the Toroidal supply. Solid imaging and depth to the music are the main benefits. Power is delivered from the ‘Dino+’  to the phono stage via a 4 way PTFE insulated, silver plated copper lead. This lead is upgrade-able to our ‘High Performance Interconnect Lead’. ‘Never Connected Dino+’ DC Power Supply The NCPSU has completely different electronics to the standard ‘Dino+’ power supply.. Instead of an oversized toroidal transformer, there is a PCB mounting variety followed by our revolutionary noise reduction circuitry that is called ‘Never Connected’. Although the regulation circuit is physically connected to the incoming mains, it is disconnected electrically. A monitoring circuit detects the portion of the sine wave that is charging the first of a pair of electrolytic capacitors. Once this first capacitor is fully charged, the diode bridge rectifier turns off and a MOSFET switching circuit transfers the charge from the first cap to the second. This cycle is repeated continuously. At no point in time is the regulation circuitry electrically connected to the incoming rectified mains – hence the term ‘Never Connected’. The overall result is a large and measurable reduction in mains borne noise. This dramatic reduction of mains borne noise enables the Dino phono circuit to give of its very best. As with the ‘Dino+’ PSU power is delivered to the phono stage via a 4 way PTFE insulated, silver plated copper lead. This lead is upgrade-able to our ‘High Performance Interconnect Lead’.