Voodoo Main Discussion

[6666]

Ok, that question is answered.
Last question;
if PI part of the detector works at 600pps or Hz and i am trying to use White's coil with stripped caps and other components from the inside of the coil:
do i need to balance TX&RX coils to 600Hz frequency or to 6.59kHz (White's working frequency)?
I will not use White's coil.
I will use same coil arrangement and sizes as at White's coil; but i will make 360-400uH TX coil and 7-12mH RX coil.
So i need to know at which frequency i need to balance those coils?
Logic tells me that i should balance those coils for 600Hz frequency.

but i will make 360-400uH TX coil and 7-12mH RX coil. why are you useing such a high inductance for the RX coil ?

Another thing I have been pondering Dave Emery says if making a PI conc then use a 22 ohm R between coil and mosfet, anybody doing that ?

[ivconic]

Thanks Altair and Qiaozhi!

[Qiaozhi]

Ok, that question is answered.
Last question;
if PI part of the detector works at 600pps or Hz and i am trying to use White's coil with stripped caps and other components from the inside of the coil:
do i need to balance TX&RX coils to 600Hz frequency or to 6.59kHz (White's working frequency)?
I will not use White's coil.
I will use same coil arrangement and sizes as at White's coil; but i will make 360-400uH TX coil and 7-12mH RX coil.
So i need to know at which frequency i need to balance those coils?
Logic tells me that i should balance those coils for 600Hz frequency.

The TX repetition rate is actually 1000pps.
You should balance the coils with them connected to the detector.

[Altair]

Ok, that question is answered.
Last question;
if PI part of the detector works at 600pps or Hz and i am trying to use White's coil with stripped caps and other components from the inside of the coil:
do i need to balance TX&RX coils to 600Hz frequency or to 6.59kHz (White's working frequency)?
I will not use White's coil.
I will use same coil arrangement and sizes as at White's coil; but i will make 360-400uH TX coil and 7-12mH RX coil.
So i need to know at which frequency i need to balance those coils?
Logic tells me that i should balance those coils for 600Hz frequency.

I would doing like you.
Operating frequency is driving.

[ivconic]

Ok, that question is answered.
Last question;
if PI part of the detector works at 600pps or Hz and i am trying to use White's coil with stripped caps and other components from the inside of the coil:
do i need to balance TX&RX coils to 600Hz frequency or to 6.59kHz (White's working frequency)?
I will not use White's coil.
I will use same coil arrangement and sizes as at White's coil; but i will make 360-400uH TX coil and 7-12mH RX coil.
So i need to know at which frequency i need to balance those coils?
Logic tells me that i should balance those coils for 600Hz frequency.

[Altair]

I believe that balance is foundamental for PI channel to ensure a good depth, despite some energy is anyway dissipate on RX coil and for that a loss of depth is endemic of this solution

[Qiaozhi]

Question for Voodoo and DB experimental circuit:
how really important is to balance RX coil with TX coil?

Very important.
With improper nulling the RX loop will look like a huge target to the PI channel.

[ivconic]

Question for Voodoo and DB experimental circuit:
how really important is to balance RX coil with TX coil?

[SilverSurfer17]

Its cheaper for Amazon to have the post office deliver it and cost the tax payers 80 million more a year when we have to cover it Jeff is no dummy or i should say his wife was no dummy and yes we have them deliver it Amazon also every street around here has a Amazon truck on it soon drones landing in their yards i had Prime for awhile but i didn't really use it at the time so i let it expire

[Qiaozhi]

Interesting ...
In the UK I have often ordered something on Amazon one evening, and had it delivered the next day. Or maybe that's only because I have Amazon Prime.

[KingJL]

Does Amazon not use their own delivery people in the U.S.?

Yes and no! Not being a smart***, but that is the case depending on your location.

[waltr]

Does Amazon not use their own delivery people in the U.S.?

Only if you live close to an Amazon distribution center.

USPS (Postal Service) has been extremely slow on deliveries for the past 8 months. Even first class mail can take an extra 3-4 weeks.

[6666]

Does Amazon not use their own delivery people in the U.S.?

Here in Australia, international shipments like books get dumped on the Government Post Office to deliver.
Even thou I ordered my book via Amazon Australia, and paid for express delivery, it was eventually printed and posted from the US
and like I said dumped on the Post Office to deliver which all adds to the time.
Don't believe everything Amazon writes about themselves is true, they suck.

[Qiaozhi]

Well that sucks book was suppose to be delivered by usps but it didn't come today like it was suppose to im so mixed up on what type of cable is best ive read like 5 different things from rg58a/u cable to mogami dual rca to ubs cable to microphone cable and also to make it as short as possible for a faster coil

Does Amazon not use their own delivery people in the U.S.?

[6666]

Sorry, Video is so crappy. 480P.. I can see it on my mobile device but the resolution is not that good on my laptop. Yes, home made coil.

Thats ok, just needs the camera to be bit closer to meter, when I go full screen on my laptop the video washes out just a touch too much on meter
does the meter have to be 100mA