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hi kt315
please where's the pcb for this schematic?
thank you
best time
p.
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Hello everyone
because these days I have time to spare I decided to help a bit in making KT315 PCB PCB work the first time and do not forgive if I did something stupid. I hope to finish the kit today and if you have any objections please say to make it right. I think KT315 will criticize me a lot because I play his mounting interface
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Hi JapOriginally posted by jap View PostHi Nicolas
-Tested and check T9,D8
-Tested all the components and value in its place ,like r44=330 ohm,,And so on.
best time
j.
[ATTACH]21908[/ATTACH]
I tested all no note all values are correct
I have not managed to locate the problem
But with the headset is good it works
I think only replace the Cap 220uF 50v by another 35V
Thank you same as
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Hi JapOriginally posted by jap View PostHi Nicolas
-Leave the speaker 8 OHM as it is because it is better.
-Be sure that your speaker is connected between the two pin 3-2 in J2(IN DP2).
-Be sure VOL=100 OHM=1K POT,R46=2.2 OHM
-To be safe change C27,C29.
best time
j.
My connection is correct and my component
electrolytic capacitor 100uF and 220uF 50V the R46 = 2.2K
I use this PCB
But I have this problemAttached Files
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Hi Nicolas
-Leave the speaker 8 OHM as it is because it is better.
-Be sure that your speaker is connected between the two pin 3-2 in J2(IN DP2).
-Be sure VOL=100 OHM=1K POT,R46=2.2 OHM
-To be safe change C27,C29.
best time
j.
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Hi Jap
I use a 0.8 ohm 1w speaker but the sound is low
I can change it with another 0.8 Ohm 0.5W
or I have a problem somewhere
I need your help
Cordially
Nicola
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OK! But my first coil with 28 cm diameter and 450 uH. It view my gold ring about 24 cm distance. The new coil work fine with this parameter (coil: 40 cm, 540 uH,3 ohm) - 380 Hz, 680ohm/1w dumping resistor. It view our iron stove from 1,3 m of distance. I prepare a switch, with which it is possible to change it, the dump shirt resistance and the frequency.
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thx JapOriginally posted by jap View PostHi Nicolas
-R5= for small coil 20cm ~ 50cm use 680 /1w ~ 1.2k/1w
for pig coil 75cm ~ 1 x1 m use 1.2k/1w ~ 2.2k/1w
-u get good stable .
-you can replace R5 by variable resistance value 5k and then set to the best mode and then reading the value and placed of resistance instead Equal to the same measured value.
-for 1x1m=4m cat5 same ohm,uh
best time
j.
Ok I understood
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Hi Nicolas
-R5= for small coil 20cm ~ 50cm use 680 /1w ~ 1.2k/1w
for pig coil 75cm ~ 1 x1 m use 1.2k/1w ~ 2.2k/1w
-u get good stable .
-you can replace R5 by variable resistance value 5k and then set to the best mode and then reading the value and placed of resistance instead Equal to the same measured value.
-for 1x1m=4m cat5 same ohm,uh
best time
j.
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Thank You, Jap!
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