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Boki or Gile... whad do you mean ?! Are you sure that Gile speak English !?
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I speak English werry good... like Tarzan ! But i think that Gile speak English much better.... like Chita !Comment
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245
BF 245C is OKComment
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Okan, i am saying nothing cose i didint mod this yet....still using it as it is...
I am planning to mod it in next few weeks, than i'll report here....but i think Geo is right, it will work fine with audio from Zahori...If you are interested see it on Zahori thread...Take part added later; 4N35,555,2907....
Right now i am learning myself to use Eagle software, with success!!! Hurahhh!
I am gonna input Silver Sabre schematic in it and add few mods, than i'll make pcb for that and see what's going on...?!
Also intend to make SMT pcb for Golden Sabre....but this should be job for Strujas, since i am still beginner in those stuff...
Boki....nesto si ceprkao Giletu po kompjuteru i sada ne moze da se konektuje.....pa ja moram da idem da mu sredjujem sve....Huh! Sutra idem da mu preinstaliram sve iz pocetka.....Bicu popodne tamo, navrati...
Regards!
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Hi Ivconic,
because of these words ,I thought u made something different
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But Silver Sabre is most interesting to me, a slice better audio, but i've change it with 4N35 and 555 anyway....
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u know I cannot modify.even by looking zahori unless you teach me how to modify.u know I am less than amateur.
btw I m planning to build zahori,Ibought componnents.do not let me use them for GS
for GS what do you offer .must I wait for modify.
do you think will it have differance at dept perpormances.
for GS;
I am planining to omit speaker .and put 16 ohm paralel with headphone.
and place them to 5 legged sterio jack.
when there no jack plugged it will be 16 ohm.when ı plug hp just hp will be in work.
btw what is the R for HPs.is it 8 ohm or more.I do not want to burn something like previouus experience of our friends.must I add 8 ohm in series to HP.Comment
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Hi ivconic,Originally posted by ivconic View Post
Okan, i am saying nothing cose i didint mod this yet....still using it as it is...
I am planning to mod it in next few weeks, than i'll report here....but i think Geo is right, it will work fine with audio from Zahori...If you are interested see it on Zahori thread...Take part added later; 4N35,555,2907....
Right now i am learning myself to use Eagle software, with success!!! Hurahhh!
I am gonna input Silver Sabre schematic in it and add few mods, than i'll make pcb for that and see what's going on...?!
Also intend to make SMT pcb for Golden Sabre....but this should be job for Strujas, since i am still beginner in those stuff...
Boki....nesto si ceprkao Giletu po kompjuteru i sada ne moze da se konektuje.....pa ja moram da idem da mu sredjujem sve....Huh! Sutra idem da mu preinstaliram sve iz pocetka.....Bicu popodne tamo, navrati...
Regards!
is that audio mod let the threshold behaviour or gives always the same audio tone level ? Cause an audio volume modulation can be done using modulation of light of led in the optocoupler.
I think could be really easy to implement ...also with volume modulation ...also if not needed to find objects...just a tone is required also with always same volume! But could be more close to tesoro's design to have a threshold information too...but not the way the have done cause produced weak audio response, but in a stronger way.
Can't find the zahori circuit...??? Where is it ?
Best regards,
MaxComment
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hi max
zahori is in remote sensing files
http://thunting.com/geotech/forums/s...ad.php?t=12144
I got link from first page.in one of these pages you can find ivconics modification.
zahori was Esteban 's gift to us.Comment
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Hi okantex,Originally posted by okantex View Post
thanks for the link. I'll take a look at it asap.
Best regards,
MaxComment
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audio solution
How to overcome poor audio on Golden Sabre?
As I see the problem - sound just needs some amplification,
and it just happens that I have lots of surplus LM388 - 1.5W audio amplifiers.
This IC is obsolite and discontinued but has great charateristics..
supply voltage: 4 - 12 volts
output power: 1.5W / 8 ohm
it adds 20mA to total consumption
minimum external parts
Circuit used is from datasheet (gain - 20x) and it works perfect.
Faintest sounds are well amplified and for close targets
volume control was added.Comment
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Hi Leto,Originally posted by Leto View PostHow to overcome poor audio on Golden Sabre?
As I see the problem - sound just needs some amplification,
and it just happens that I have lots of surplus LM388 - 1.5W audio amplifiers.
This IC is obsolite and discontinued but has great charateristics..
supply voltage: 4 - 12 volts
output power: 1.5W / 8 ohm
it adds 20mA to total consumption
minimum external parts
Circuit used is from datasheet (gain - 20x) and it works perfect.
Faintest sounds are well amplified and for close targets volume control was added.
well done. Simple, easy and functional !
I think that using the optocoupler could avoid problems related to feedback due to current variations...caused by output stage in circuits like bandido that are really sensitive to noise and produce much commutations related to poor supply rejection of overall circuit.
I think that golden don't suffer from that problem so your solution could be the right choice for it.
Pretty nice also the small pcb!
Best regards,
MaxComment
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Okan...
Okan...look at this...
regards
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Hi Ivconic.
Can you tell me if i can replace BF245C by 2n5484, becuse this transistor is very common here in Chile.
Regards
Nelson
Originally posted by ivconic View Post Fat fets....Sheesh!
Instead BF245 i used J107. U may use any simillar, look in some charts, find simillar...
No problem, come with questions, but you will not have any problem with this, it will work fine from a start....
Regards!
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Hi Ivconic
or Mr. Lecturer
I have a question.
zahori 's power supply 9 volt .and Vdd and Vcc and all bats go to +9V and -9V.
but inhere goden sabre power supply is 12V.
will bats be +12v ,-12v.
and what will Vdd and Vcc be? 12 or 9.
and what do Vdd and Vcc means .Comment
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and in modified shcmatic there is one 9v.where will I supply it.
will I add 9v battery for these.Comment
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