Frequency response of the Pleiades V6 CV2269 electron tube mic preamp

This is possibly world's first pocket box electron tube microphone preamplifier operating directly with an AAA 1.2V battery derived electric potential for both heater and anode. Frequency. With the Freed variable inductance input transformer and a few feet output cable the frequency response is -10dB at 100Hz and 20KHz creating an unboomy natural vocal sound to listener's brain. There is also +2dB at 2KHz, +3dB at 3 KHz, +2dB at 4 KHz, +1.5dB at 5 KHz, -1 d at 8 KHz. So excellent vocal presence too to listener's brain. Excellent graduall electron tube overloading. Frequency response is simmilar to EMI REDD.37,.51 EQ settings, see Recording the Beatles book. It was firstly used on the song Tezcatlipoca - Ira, George.