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I acquired parts to make a couple Excalibur?s. I obtained coils off eBay etc. and some had bad connections at the coil. I managed to get these working - I used heat shrink that had hot melt glue to seal the connection. But I screwed up on one putting it away - overstressed it - and it broke all 4 connections. So my question is - do I need to optimize these TX/RX connections for phase?
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Yeah I got the whole set of PCBs for the Excalibur's that were for sale. About 5 kilos. All of them need some TLC
Which board revision do you have? Most of mine are 3.3.X. Some older marked as 2.2.X, 2.3.X I wonder which the 3.3.X correspond to? Perhaps the Excal II?
Some files I got from the forum in the attached files. -
I saw those but my two Excal projects were enough for me. I hope to get these two ready for sale so I can use the money to buy a coil and things for my GPZ. OBN posted some photos somewhere of boards and numbers vs models. I’m not going to open mine up as they are too hard to get back together!Comment
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Are those preamp circuits in both Sovereign and Excal? OBN has some sort of booster on his machine - I wonder what it is…Comment
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Exal is sure Sovereing Elite.Comment
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Ok back to my original question: I have 2 Excals. I have an in-line connector on each for interchanging coils. On the functional one, pinout on the connector from the coil is:
1-4 tx 2.2 Ohms
2-3 RX 1.1 KOhms
on the 2nd unit I can tell which 2 wires are tx and which are RX but I can’t tell which are ground or hot. Does it matter?Comment
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OBN answered me in DetectorProspector. It does make a difference. He posted a video of wrong vs right wiring behavior.Comment
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