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  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
1/1
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board

Finished PASS H2 hifi Field effect transistor preamplifier board

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PASS H2 hifi preamplifier board
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  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
1/1
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Finished PASS H2 hifi Field effect transistor preamplifier board
  • Description

Details:

PCB size: 11.5 * 6cm

Voltage: DC 24V or AC single 18V  There is a DC input socket on the board, which can be directly inserted into the switching power supply to work

Debugging
instructions: input DC or AC, and then adjust the adjustable resistance. Measure that the voltage between the upper end of resistance
R14 and the ground is 17V, and do not install the wrong components


Features:


The circuit is simple, the sound is natural and warm, surpassing most preamps


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