No .END directive found warning about qucs_s HOT 4 CLOSED

This error is a warning and doesn't affect the simulation. I will remove this message from Qucsconv in the next release, because it can mislead users. Don't insert .END directive in the SPICE model, because the SPICE simulation will not work.

Also please keep in mind that Qucsator_rf is not recommended for simulation of the SPICE circuits and general purpose circuits. I have no intention and time resources to improve the SPICE support in Qucsator in the near future.

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The attached project archive doesn't contain the schematics files and SPICE netlist. Also I would not recommend using Qucsator to simulate this circuit except only for academic interest. You may have time-domain convergence issues with this schematic. The Qucs-S contians 2N5109 model in the library that is works fine using Ngspice.

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Fixed by #653

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Here is the qucs and ngspice versions of the preamp originally done by Claudio. He sent me the original Qucs schematic.

https://www.qsl.net/in3otd/ham_radio/2N5109_PP_pre/2N5109_PP_pre.html

2N5109_Amp_prj.zip

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