Copyright © 2017 FiveFish Audio
VT-73 Hybrid Tube Mic Preamp Assembly Guide
3.17 Now, let’s assemble the Vacuum Tube PCB Adapter board. Our Vacuum tube will be mounted in a tube socket for easy
future replacement. The PCB Adapter board is then soldered to the main board using right-angle headers, making the tube
orientation vertical once the 500-series preamp is inserted into the rack.
First step is to solder the current-limiting resistor for the LED.
Next, solder the Right-Angle Headers to the board as shown. Turn over the PCB, and solder the headers from the
component side of the board. Take note that the shorter leg is soldered to the PCB!
Summary of Contents for VT-73
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Page 40: ...Copyright 2017 FiveFish Audio VT 73 Hybrid Tube Mic Preamp Assembly Guide 7 SCHEMATIC DIAGRAM ...
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