Maxmod...for real?

[TES]

Hello, New guy here...I have a noob type question concerning an upgrade/mod for the AT 6666 I put in my wife's car am I in the right place?

 

[sp5it]

Snake oil.

 

[2NC995]

...am I in the right place?

Yes, you are.

Welcome to the forum!

 

[TES]

I am beginning to get that impression. The 6666 I guess, is known to pop the finals in time. I don't know #$&@ about any of this radio electronics stuff but I'm not afraid to learn and I learn best by a hands-on approach. it's not a high dollar radio so forget the fear factor. I purchased a matched set of ERF2030+ 's to replace the exiting transistors if/when they pop. I can smell the 'snake oil' but wonder if this maxmod would be a good driver or maybe something else?

Any guidance or explanations would really be appreciated, Thank you

 

[TES]

Yes, you are.

Welcome to the forum!

Thank you very much

 

[TES]

I am beginning to get that impression. The 6666 I guess, is known to pop the finals in time. I don't know #$&@ about any of this radio electronics stuff but I'm not afraid to learn and I learn best by a hands-on approach. it's not a high dollar radio so forget the fear factor. I purchased a matched set of ERF2030+ 's to replace the exiting transistors if/when they pop. I can smell the 'snake oil' but wonder if this maxmod would be a good driver or maybe something else?

Any guidance or explanations would really be appreciated, Thank you

I guess I didn't enter this properly or maybe it was not an interesting subject

 

[kopcicle]

You just ran into sp5it (Mike) a true cynic.
You could have ran into me and a two page rant.
Consider yourself fortunate.



And welcome to the forum.

Pssst , the inmates have the keys to this asylum.

 

[TES]

You just ran into sp5it (Mike) a true cynic.
You could have ran into me and a two page rant.
Consider yourself fortunate.



And welcome to the forum.

Pssst , the inmates have the keys to this asylum.

Thanks for the reply...any thoughts or experience with the 6666...replacing stock transistors and driving them with the maxmod or is the maxmod 'snake oil' or just BS

 

[sp5it]

Mosfet finals pop when driven too hard and overheating. Maxmod won't help.
Typical final stage efficiency is 50% it means when you transmit 60W another 60W is heat.
6666 radiator is too small for that amount of heat.
Mike

 

[kopcicle]

warning

[opinionated old phuck]
Quit trying to get another suicidal 2 watts out of a FET...
Turn the thing down and drive something
https://qrpblog.com/2019/10/a-600w-broadband-hf-amplifier-using-affordable-ldmos-devices/
Best bleeding edge, bang for the buck, $$ per Watt, technology on the planet as of yesterday.
Just quit with the radio as a hand grenade with a loose pin waiting for a place to happen.
I refer to this school of modifications as "Darwin Radio".
[/opinionated old phuck]

So, how do you like your 6666?

 

[TES]

warning

[opinionated old phuck]
Quit trying to get another suicidal 2 watts out of a FET...
Turn the thing down and drive something
https://qrpblog.com/2019/10/a-600w-broadband-hf-amplifier-using-affordable-ldmos-devices/
Best bleeding edge, bang for the buck, $$ per Watt, technology on the planet as of yesterday.
Just quit with the radio as a hand grenade with a loose pin waiting for a place to happen.
I refer to this school of modifications as "Darwin Radio".
[/opinionated old phuck]

So, how do you like your 6666?

The 6666 is nice radio, small enough for my wife's car...she did NOT want a radio in HER car. I'm really impressed but I hear a lot of talk about heat and smoking the finals because they inferior transistors Maybe its a bunch of BS but don't know so I'm here looking for answers. I purchased a matched set of ERF2030+ to replace the finals if need be and wondered if driving them with the maxmod was a waste of time or just 'snake oil'

 

[kopcicle]

wondered if driving them with the maxmod was a waste of time or just 'snake oil'

both

 

[TES]

both

OK...final question...IF the transistors in my wife's 6666 fail would the ERF2030+s be a good replacement for all four (4) transistors

 

[Ranch55]

OK...final question...IF the transistors in my wife's 6666 fail would the ERF2030+s be a good replacement for all four (4) transistors

In my opinion.
NO .......!!!!!!

IRF 520
FQP13N10 from Mouser electronics

 

[Eldorado828]

There's a whole other thread that has all these you're looking for, I'll add the link shortly

Pretty much ends in leave it as it be, it's a great little device as it is.