Firebottle
07-02-2021, 15:26
Part of the Firebottle Towers clearout of unused kit.
This preamplifier was my daily driver for a long time but has now been superseded by alternative equipment.
https://i.imgur.com/RIUVmQI.jpg
Valve based preamplifier using innovative 'super linear' circuit design, distributed regulation and passive RIAA equalisation.
3 line level plus MM/MC switchable phono input. Remote control of volume and mute. Earth lift switch on rear.
https://i.imgur.com/vffF0Ll.jpg
Line level inputs: Gain 7dB, input impedance 100 Kohm.
Phono input: MM gain 39dB, input impedance 47 Kohm, MC gain 65dB, input impedance dependent on loading plugs fitted.
Mundorf ZN coupling capacitors and close tolerance polystyrene capacitors for the RIAA equalisation.
https://i.imgur.com/tZUFZMf.jpg
Choke filtered power supply plus current controlled heater supplies to give valve longevity.
The phono stage heaters are off unless the phono input is selected.
https://i.imgur.com/gwjl8UW.jpg
Fitted with 3 Telefunken PCC88 valves and a second passive output prior to the line stage.
https://i.imgur.com/PfK9Fp4.jpg
Shown to the left is the MC/MM selector switch and the phono loading sockets.
Complete with a OneforAll remote control.
https://i.imgur.com/dS89uk2.jpg
Looking for £750, collection or delivery at cost.
This preamplifier was my daily driver for a long time but has now been superseded by alternative equipment.
https://i.imgur.com/RIUVmQI.jpg
Valve based preamplifier using innovative 'super linear' circuit design, distributed regulation and passive RIAA equalisation.
3 line level plus MM/MC switchable phono input. Remote control of volume and mute. Earth lift switch on rear.
https://i.imgur.com/vffF0Ll.jpg
Line level inputs: Gain 7dB, input impedance 100 Kohm.
Phono input: MM gain 39dB, input impedance 47 Kohm, MC gain 65dB, input impedance dependent on loading plugs fitted.
Mundorf ZN coupling capacitors and close tolerance polystyrene capacitors for the RIAA equalisation.
https://i.imgur.com/tZUFZMf.jpg
Choke filtered power supply plus current controlled heater supplies to give valve longevity.
The phono stage heaters are off unless the phono input is selected.
https://i.imgur.com/gwjl8UW.jpg
Fitted with 3 Telefunken PCC88 valves and a second passive output prior to the line stage.
https://i.imgur.com/PfK9Fp4.jpg
Shown to the left is the MC/MM selector switch and the phono loading sockets.
Complete with a OneforAll remote control.
https://i.imgur.com/dS89uk2.jpg
Looking for £750, collection or delivery at cost.