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Hi everyone
Sorry I not been on here for a while, business has been hectic to say the least, so not had chance to do much.
Anyway my TGSL is finished far as construction, made case out of 2/8th styren made a few coils with my newly made electric coil mill with all the frills. Its been a good learning curve for me making these coils compared to the ones Ive made in the past for other machines, because although the 98/107 turns works for some of you it didnt for me, the TX coil no problems hit the 6.5MH everytime, Total opposit with the RX in fact I started doubting my inductance meter.Anyways with my set up Ive found 95/100 turnes TX/RX works fine giving 6.5MH/6MH at 23.5/24.35 ohms and I can churn them out fairly consistent by winding tight via a tention adjuster I installed on the feeder drum very easy to do as you will see in the pictures I will post later.
Carefully taking the upper drum cover off small tempory cable ties to keep wire together, check induction/impeadence, spot glue, let dry, check inductance again, cut ties, lume as most of you do, check induction again, then glue all over/leave till following day.
Now what I found is at this point with a little messing about get my 6/6.5mh quite easily, or should I say my meter says so.
I did as advised on here checked TX frequency with both my frequency counters to be sure , hooked up the RX coil onto the TX circuit, all well within range almost spot on as the spec says.
Far as making the PCB it was done like Ive done it for many years very simple just printing from a laser printer then hot iron onto the copper clad, easy peazy if you use good quality PCB , fiber glass based with a good gauge layer of copper, use the cheap blown carboard then you get a half shot PCB with the copper floating, all learnt the hard way from previous experience may I add.
Now after all said and done, turned the machine on and it comes out with a lovely tone nice to the ears, but thats all, soon as I overlap the coils it goes silent but no matter what position I put them in it doest hardley detect metal so now im going to be forced into fault finding which is proberly a good thing in the long run to learn how it ticks.
Any guides to my problem will be greatfully received, in return anyone want to know any of my tips on pcb making or my coils tricks please feel free to ask.
Warm regards
Dave
Sorry I not been on here for a while, business has been hectic to say the least, so not had chance to do much.
Anyway my TGSL is finished far as construction, made case out of 2/8th styren made a few coils with my newly made electric coil mill with all the frills. Its been a good learning curve for me making these coils compared to the ones Ive made in the past for other machines, because although the 98/107 turns works for some of you it didnt for me, the TX coil no problems hit the 6.5MH everytime, Total opposit with the RX in fact I started doubting my inductance meter.Anyways with my set up Ive found 95/100 turnes TX/RX works fine giving 6.5MH/6MH at 23.5/24.35 ohms and I can churn them out fairly consistent by winding tight via a tention adjuster I installed on the feeder drum very easy to do as you will see in the pictures I will post later.
Carefully taking the upper drum cover off small tempory cable ties to keep wire together, check induction/impeadence, spot glue, let dry, check inductance again, cut ties, lume as most of you do, check induction again, then glue all over/leave till following day.
Now what I found is at this point with a little messing about get my 6/6.5mh quite easily, or should I say my meter says so.
I did as advised on here checked TX frequency with both my frequency counters to be sure , hooked up the RX coil onto the TX circuit, all well within range almost spot on as the spec says.
Far as making the PCB it was done like Ive done it for many years very simple just printing from a laser printer then hot iron onto the copper clad, easy peazy if you use good quality PCB , fiber glass based with a good gauge layer of copper, use the cheap blown carboard then you get a half shot PCB with the copper floating, all learnt the hard way from previous experience may I add.
Now after all said and done, turned the machine on and it comes out with a lovely tone nice to the ears, but thats all, soon as I overlap the coils it goes silent but no matter what position I put them in it doest hardley detect metal so now im going to be forced into fault finding which is proberly a good thing in the long run to learn how it ticks.
Any guides to my problem will be greatfully received, in return anyone want to know any of my tips on pcb making or my coils tricks please feel free to ask.
Warm regards
Dave
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