IGSL

[satdaveuk]

volume control

Having a volume control is a good idea
All i did with my TGSL Ivonics circuit , for a quick fix putting a 1k pot on the main output before speaker and decking the other end of track to earth, not normally the way to do things but fits the bill.

[MAURICE]

IGSLMC for Diptrace

Hi.To members on forum and seasons greetings. I have completed a layout for Igslmc for Diptrace.This being my 4th attempt to improve it.Dimensions 156x103mm. A little larger than others but note
1;all components lying down
2; most caps 5mm ( I cant source 2.5mm units)
3;no tricks like trying to have 2 links in one via
I could go on but wont.Points to note cap c1 can be bridged (may be used at later stage).
Unfortunately have made A board by layout of Nakky which has nice routing but is very ti
ght. So when this is completed I cant wait to try my own. NB diptrace has full DRC check.

Regards Maurice.

[golfnut]

Hi its a real shame it wont fit the standard Eurocard housings.

The IGSL did this too unfortunately.


100mm is the size to aim for if there is a 3rd version looming.

Steve

[golfnut]

q

[petravka]

http://www.kelco.rs/katalog/images/1455N1202.pdf

[bernte_one]

my favorit
http://www.ebay.de/itm/Euro-Gehause-...item3cbb8db491

all plates (front, back, up and bottom) are removeable

if anybody has problems to fit pcb in euro housing (pcb is a little bit smaller) glue a second pcb or a sheet of abs or polystyrene sheet under igsl pcb - ready

regards

[golfnut]

My IGSL -I superglued a cocktal stick to the edge of pcb to stop it falling out of the slots in the case.

Steve

[detecto]

My IGSl finaly work (mistake found)

Last night i found a mistake after 100 times checking my work.
Mistake is more than stupid for q1 i put BC547 and BC547 is pnp transistor i replace it with BC327 and he is working just fine i am more than satisfied.
Regards

[der_fisherman]

Last night i found a mistake after 100 times checking my work.
Mistake is more than stupid for q1 i put BC547 and BC547 is pnp transistor i replace it with BC327 and he is working just fine i am more than satisfied.
Regards

Very well done, you have reminded me to check all of my transistors, thanks.
Andy

[compadre]

Hy here are my IGSL thanks to all
compadre

[bernte_one]

hello compadre

nice

(if you need full version of front designer, write me or search this thread- somebody has linked it)

regards bernd

[MAURICE]

IGSLMC for Diptrace

Humble apologies.
PCB okay but transistors must be rotated by 180 degrees when placed in board during assembly.Same for coilset. I have been experimenting with a small board which is basically a TGSL front end.This allows one to set up coils and test TX oscillator without having a full detector present.Not having thought up any better name I have called it coilset.I have oscillator running at 14.4 kHz with 14v pk-pk output nice looking wave on scope.Note the following c16 short out ( C17 100nF for above test and used 220k resistors for R23 and R72 seemed to run better with 220k on LT spice).
Regards Maurice. NB COIL I.I45mH

[bernte_one]

here it is
ready for field test

http://www.detektorforum.de/smf/werkstatt/igsl_vom_geotech_forum_mal_nachgebaut-t30614.0.html;msg291375#new

regards bernd

[kliner]

My IGSL

Just to post a photo of my IGSL musketeer detector, it turns out to be a very flexible machine, I'm still playing with the settings but you can tune it to a double tone on a cartridge head or a bottle top while still getting a nice clear high tone on coins, Thanks Ivconic for a very good piece of work. I've equipped it with the VDI from Holyuser, seems to work very well

[golfnut]

Anyone tried reducing the Resistors on the Rx front end.


The 4k7 R's could come down a little = less noise and higher gain

3k9
3k3
2k7


Steve