Simplistic NJFET RIAA

[42001]

I guess I'll go for the Tortuga kit for attenuation

 

[Salas]

I will go for cheaper

 

[stajo]

Les Alpes Bleu

 

[Salas]

And whatever fancy three pin that fits or wires there

 

[stajo]

Diodes over relays?

 

[difool]

I will go for cheaper

Sorry for not knowing: where can I read more about it?

 

[stajo]

Sorry for not knowing: where can I read more about it?

It was some IR remote input kit with motor control too that happened to be in the box. More details in other proper threads soon.

 

[Salas]

Sorry for not knowing: where can I read more about it?

Has a manual already to read all about it

 

[Salas]

Diodes over relays?

Relay coil protectors

 

[42001]

Mezmerized

Has a manual already to read all about it

I have the mezmerized preamp. So i could use that one and your new one combined I guess. Hmmm, lots to think about. LDR does have a cool name and is supposed to be excellent... Oh well, next winter ;-)

 

[stajo]

Has a manual already to read all about it

Forgot 7812 in the parts list?

 

[Salas]

Although not in final final review I see it says IC1 LM7812 in first line under parts

 

[stajo]

There it was, mea culpa

 

[nezbleu]

No provision for indicator LED's? Easy enough to wire in I suppose.

 

[Salas]

There is R1 & power on Led in the area above C1. If you want position Leds there is one side of the selector left unused to utilize.

 

[stajo]

Gain on the pre?

 

[Salas]

X3 (10dB) as standard or more. Thus G3.

 

[stajo]

Theres a logic in everything

 

[Salas]

And it takes patience in everything too not to screw it in the end, so wait for me to finish it off properly for PCB and I will be back. Because not very practical in its initial form factor

 

[nicoch58]

Yes I have given it much voltage swing capability. It remains I finish it up on PCB because very fast circuitry, must make sure of all values are in final form due to layout effect, all is quiet, practical etc. Measures very good even on my friend's matrix board beta test build and gave no trouble but you never know what comes to fix when changing layout. Or an idea for something to add etc.

Nice Salas I need headamp.....