7
Figure 2
– Vacuum tube layout
Specifications:
*Non-inverting design
*Unbalanced inputs / unbalanced outputs
*Fully point to point construction with high temp wiring and silver solder
*Hand-matched high quality parts used throughout
*FET / Triode cascode phono stage input topology for high gain and low noise
*MM RIAA passive equalized phono input (47K input impedance, 15pf capacitance)
*RIAA stage gain = 45dB
-S/N ratio: 76dB reference -40dB in @ 1kHz, +5dB record out, no weighting
*Line stage gain = 14dB
-S/N ratio: 100dB reference 1V p-p out, no weighting
*Tube compliment: 2 ea. 12AU7A - phono stage, 2 ea. ECC99 - line stage
*High quality Alps Blue volume pot
*Balance control out of direct signal path
*Volume and balance controls nested between amplifier stages providing constant load on phono
stage and line inputs for consistent frequency response
*Mono (true summing) and Mute switches for added convience
*5 line level inputs - input impedance 100K ohm
*Record output jacks - output impedance ~ 5K ohm
*Dual main output jacks
*Transformer coupled output - headphones and main outs
*2 ohm output impedance - will drive 8 ohm speaker to 1 watt!
*Fully regulated external solid state power supply for low noise
Summary of Contents for 66-001P
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