IC-1007 prototype

[ivconic]

I "designed" this schematic combining various stages from various projects, taking from accurate,already workable devices.
I liked 2 tone Rimatron option, Quiaozhi posted a while ago here.
Also i took oscillator from White's 6000 DI Pro, but this time driven by CD4060, dividing from 4MHz crystal, which is easy to obtain everywhere.
TGS look-like RX is good enough,although i used NE5534 taken from Sean's CoinHawk. Better solution than LF353,for sure.
And of course again from Tesoro - audio stage.
PCB not drawn yet.
First need your opinion here about this.
Quiaozhi, i would prefer your opinion mostly, due your epxeriences with Rimatron, already.
I "played" a bit with power potentials here.Not sure i did right.I could omit chopper stage and generate "virtual" ground with that extra op-amp, yet Tesoro chopper design still have more advantages.Major should be general
synchronisation applied to all op-amps here.
So ... need opinions.
If no remarks i will draw pcb and made prototype for testing.
...
Regards!

[DIRCEU]

I "designed" this schematic combining various stages from various projects, taking from accurate,already workable devices.
I liked 2 tone Rimatron option, Quiaozhi posted a while ago here.
Also i took oscillator from White's 6000 DI Pro, but this time driven by CD4060, dividing from 4MHz crystal, which is easy to obtain everywhere.
TGS look-like RX is good enough,although i used NE5534 taken from Sean's CoinHawk. Better solution than LF353,for sure.
And of course again from Tesoro - audio stage.
PCB not drawn yet.
First need your opinion here about this.
Quiaozhi, i would prefer your opinion mostly, due your epxeriences with Rimatron, already.
I "played" a bit with power potentials here.Not sure i did right.I could omit chopper stage and generate "virtual" ground with that extra op-amp, yet Tesoro chopper design still have more advantages.Major should be general
synchronisation applied to all op-amps here.
So ... need opinions.
If no remarks i will draw pcb and made prototype for testing.
...
Regards!

Hi IVCONIC!

Congratulations for more this job.
May be have a conection in base Q4 and R8 ???

Regards
DIRCEU

[ivconic]

Yes indeed, i missed that.
Regards.

[JC1]

Hi

Hi Ivconic,

A 2.2 pf cap around C18 to make truer differential.

Also pin 3 output of 7808 as +8 volts not +12 volts.

all I saw quickly.

[JC1]

R18

I meant R18 not C18.

duh.

[ivconic]

Hi Ivconic,

A 2.2 pf cap around C18 to make truer differential.

Also pin 3 output of 7808 as +8 volts not +12 volts.

all I saw quickly.

Yes it is trivial mistake, switching 8 to 12 volts. So obvious.
Other...i will see.
Thanks.

[Qiaozhi]

Quiaozhi, i would prefer your opinion mostly, due your epxeriences with Rimatron, already.

The 2-tone mod seems ok to me. I cannot see any errors there.
This "design" looks like it has a chance of working. Go for it!

[ivconic]

[nelson]

Hi Ivconic.
I just want to thank your big contribution to the forum. You really are a very smart person and a good man.
One of my whishes, is to know more about electronics, but is dificult for me to learn it. So i just do some small projects, wich in a way, allow me to learn from people like you.
Many thanks, and keep going with your projects my friend.
Best regards from Chile.
Nelson

I "designed" this schematic combining various stages from various projects, taking from accurate,already workable devices.
I liked 2 tone Rimatron option, Quiaozhi posted a while ago here.
Also i took oscillator from White's 6000 DI Pro, but this time driven by CD4060, dividing from 4MHz crystal, which is easy to obtain everywhere.
TGS look-like RX is good enough,although i used NE5534 taken from Sean's CoinHawk. Better solution than LF353,for sure.
And of course again from Tesoro - audio stage.
PCB not drawn yet.
First need your opinion here about this.
Quiaozhi, i would prefer your opinion mostly, due your epxeriences with Rimatron, already.
I "played" a bit with power potentials here.Not sure i did right.I could omit chopper stage and generate "virtual" ground with that extra op-amp, yet Tesoro chopper design still have more advantages.Major should be general
synchronisation applied to all op-amps here.
So ... need opinions.
If no remarks i will draw pcb and made prototype for testing.
...
Regards!

[ivconic]

Nelson thank you very much for those words. Yet i feel vexation cose i am not ultimate constructor here. I also learned a lot from others here.Just because i learned from many others, i do not want to write names here. I am still learning.
This schematic is not my intelectual product. It is just a mix from various schematics, by which i did some devices in the past.Proven. Yet, fact that those stages in schematic are already proven,doesn't mean that this mix will work excellent from a start. I have fears that signal is not synchronised well passing from one stage to other. Mostly i have doubts in power potentials, which are wired "on the fly" here.
Quiaozhi is very conversant electronician, yet devil ... wanna see me again pretty disapointed here, when finish device and realize it wont work the way expected!?
But it doesn't matter, i will draw pcb and make device. Later i will post results here.
Best regards friends!

[Qiaozhi]

Quiaozhi is very conversant electronician, yet devil ... wanna see me again pretty disapointed here, when finish device and realize it wont work the way expected!?

No - seriously - I think this has a chance of working ok, although I don't expect it will work first time. No doubt you'll have to tweak a couple of things.
OK - you could simulate the whole thing, but I know you don't like doing that, and the simplest way is to build it.
Good luck.

[ivconic]

Thanks again Quiaozhi!
I will make it for sure, these days.
I also expect some problems from a very start. Yes, as you said i will have to tweak it later. We will see.
Simulation is easy to be done by some who knows how to do that - not me

I can partially simulate oscillator and band passes...yet it will be more easy to make it and see..since this is not to much complex.
Regards!

[nelson]

Ok Ivconic, no problem, will see now how good your project comes on.
Good luck and take care
Nelson

Nelson thank you very much for those words. Yet i feel vexation cose i am not ultimate constructor here. I also learned a lot from others here.Just because i learned from many others, i do not want to write names here. I am still learning.
This schematic is not my intelectual product. It is just a mix from various schematics, by which i did some devices in the past.Proven. Yet, fact that those stages in schematic are already proven,doesn't mean that this mix will work excellent from a start. I have fears that signal is not synchronised well passing from one stage to other. Mostly i have doubts in power potentials, which are wired "on the fly" here.
Quiaozhi is very conversant electronician, yet devil ... wanna see me again pretty disapointed here, when finish device and realize it wont work the way expected!?
But it doesn't matter, i will draw pcb and make device. Later i will post results here.
Best regards friends!

[tiktak]

Hi

Hi,
Ivica.How are you?
Nice work!I am shore it will work!But will it be as expected no body will now until we test it.Yesterday I have tryed to draw a PCB but I am still to slapy and dont have a nervs to do this.If you draw a PCB I will get to soldering right NOW!
What is the cristal in the original?
Because I saw here many?
What is the coil?

Dr.Frankenstain
Its alive...................

[sascho-bg]

To Ivconic
With only one GEB channel and high gain ground balans in tone discr. is problem.Use two GEB channels.
Sascho-bg