EZ kit: Linestage Can adjust to 6, 12, 18, 22, 30db gain. Input impedance 400k-47k depending on gain setting.
Measurements vary with different tubes fitted specifications:
● S/N- > 100dbA (approx 5nv/hz).
● THD- <0.15% (<0.1% typical); <1%THD (10Vout, 100K load)
● 20Hz – 20KHz (< -0.5db with IHF 10K/1nf load)
● Output Impedance <100 Ohm
● Can use 6cg7, 6N11,ECC 88, 6DJ8, 6922, 6H1 only

Includes;
1 Projekt 70 x 240 x 240mm chassis - $90USD
1 Universal Tube Stage + transformer for 100 - 240v line voltage $185USD
1 Tesla ECC88 - $15USD
4 Iso Mount feet 4 x 7USD = $28USD
6 pair DIYers friend RCA jack at $9 each pair equals $54
2 knob's: 2 times $6 for CNC solid aluminum silver equals $12
1 LeClubHifi 4 position selector $16USD
1 DIYHFS Stepped Attenuator $69USD
1 IEC $4USD
hookup wire n/c
2 sets extension rods and flexi joint
ASSEMBLED BY US with ECC88 and 12db gain -- PLUG AND PLAY