LS-12 bareboard
use two 12AT7 for voltage amplify, very simply circuit, double side gold plated PCB
board size: L 220mm X W 155mm
matching supply LS-DY, LS-65, LS-70, LS-9D
LS-12 bareboard
use two 12AT7 for voltage amplify, very simply circuit, double side gold plated PCB
board size: L 220mm X W 155mm
matching supply LS-DY, LS-65, LS-70, LS-9D
LS-24 bare board Each channel using one 5687 in parallel, giving much more current, output can match headphone impedance from 8 ohm to 600 ohm,. board size: L 220mm X 155mm. mathcing supply TP-1 MOSfet voltage regulator board for high voltage supply board size: L 220mm X W 62mm
LS-19 assembled & tested Modiflied from MFA, using 3 pieces of 6922, constant current source in input stage. PP coupling capacitor, metal film and carbon film resistor, board size: L 20mm X W 155mm matching supply LS-DY, LS-65, LS-70, LS-9D (tubes, case and power transformer not included) Available Options: LSDY : (+US$60) Power Transform: Matching …
LS-37 assembled & tested MM/MC RIAA Phono Amp, using 4 pieces of 12AX7,input impedance of mm head is adjusttable, m/c input voltage section connect as ground grid, grounding is “STAR” ground. PP coupling capacitor,metal film and carbon film resistor (tubes, case and power transformer not included) You can change the input impedance from 150ohm to …
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