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That is the scheme, indeed. Only C23 need to be 100pF (in the scheme it is 0,1 which is incorrect).
Regards
Regards
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has anyone made a very big coil for admiral, 40-50cm ?Comment
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HI All
at the beginning of last month
I made a 45 cm header.
real tuning and phase adjustment yet
I didn't.
27cm from hood
much deeper
I saw that.
as soon as possible
I will try.
Best regards
GurdalComment
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I made 32cm DD the depth of the coins is more or less the same but deeper for larger objectsComment
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Hi
Admiral 26 cm single and dual tone testi
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getsa what value you use for C5 on this schematic ? 100n or 10n?Comment
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100n. I`ve seen in other projects less values of this capacitor but I am not sure what what would improve the performance of the chain. In the air there may be no noticeable differences. Possibly on real ground some difference can be found. Only a practical experiment can answer the question...
GreetingsComment
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In your Tchaikovsky admiralin trials, first of all, tx own resonance brake coil inductance is well adjusted, ground opamp works very well, Q factor in the coil, then the rx resonance resonance brake between tx and rx is very important. The enameled wire thickness will be used in the coil. There are calculation programs when winding the bobbin, I prefer you to use it.Comment
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Dear CEBRAIL, thank you for your help and I appreciate that, may you please give us more detail about the configuration ? My admiral works great (First version), but it have a problem of ground potentiometer, when I turn all direction the sound changed from low pitch to high pitch ??? I think it is not working the ground pot ??? Am I right ?Comment
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The last project. Enjoy
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My last version of admiral....
18mm contemporary coin buried in depth at about 24 sm.
https://www.youtube.com/watch?v=0OxoMgG6rIsComment
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