The issue here is not the PCB manufacturing prices, the difficulty here is that:1. pulse transformer components, I didn't choose to be kind to fit, I wrap the try but do not meet the current source circuit, and I also purchased the Ferrite core is available in the US but does not meet the, and also contact some NATIONAL COMPREHENSIVE CHINESE parties is not available the size as you need. -If you open NATIONAL COMPREHENSIVE special equipment for doing this-core but not sure when wrapped transformers finished tied on the circuit, will be started soon (this is only an initial testing) because there are many reasons affecting the principle of operation of this transformer: Ferrite core materials + PC40 (if Liao improper objects is also affected for out the line and leaving out the unstable). + Select the copper wire wrapped in non-matching transformer for influence. + Adhesive insulation, cooling for transformers.2. On the control circuit of the IC DIP 18PIN (U4), also has no value.(According to the initial assessment of His Men use IC number, use OPAMP) but we must first have the source circuit, should not do anything.3. on the PCB machining quotes could not be done before: -Like to quote his first PCB machining must know all components need to use what's components, you have to draw the diagram Layout to PCB (like the new NATIONAL COMPREHENSIVE quotes) but unknown components cannot draw layout PCB is.
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