AudioSector-chip amp kits, dacs, chassis

[Peter Daniel]

It was here: Commercial Gainclone kit- building instructions

[tangen]

Thank you Peter. Very helpful as usual!

Jan Ove

[jpetek]

Hi Peter,

do you have a complete Kit from your Phonoclone? I need a 230V Version for Germany.

best regards

Josef

[Peter Daniel]

Yes, it's available. Send me an email for price list.

[beauistheman]

hey peter,
im looking to build a 2 channel setup, but wondering if you know of anyone who has done it with a headphone amp built in also. Possibly using a DAC and building that into the set as well.

I was thinking a powersupply in a seperate box with 2 transformers (1 per channel). Then both amp channels and a headphone amp in the other box with a switch which will switch both the input signal and power to the headphone amp. input signal given by the DAC.

Maybe im getting a head of myself here lol. seperating it all may be better.

[Peter Daniel]

You will find more info here:

LM3875 as a headphone amp (another try)
AudioSector-chip amp kits, dacs, chassis
Commercial Gainclone kit- building instructions

[AlexQS]

Originally Posted by Peter Daniel

The coupling caps at amp's input: 2.2-4.7uF

Hi all,

I am searching for the right part, for input coupling cap. I have found what was a favorite of Peters at one time: "and my two favourites for coupling are 4.7u BG N or 100/25 Rubycon ZL" on an old thread in here.

Far as I can tell, we can't get the Black Gate anymore. A few have some left over, but I can't find that 4.7uF value cap.

In looking for an altranate, what voltage should be used?

I found an Elna 4.7uF 50V, ROA Series.
Also a Rubycon ZA 4.7uf 35volts.

Would either of those work?


Thanks,

AlexQS

[northernsky]

Originally Posted by AlexQS

Hi all,

I am searching for the right part, for input coupling cap. I have found what was a favorite of Peters at one time: "and my two favourites for coupling are 4.7u BG N or 100/25 Rubycon ZL" on an old thread in here.

Far as I can tell, we can't get the Black Gate anymore. A few have some left over, but I can't find that 4.7uF value cap.

In looking for an altranate, what voltage should be used?

I found an Elna 4.7uF 50V, ROA Series.
Also a Rubycon ZA 4.7uf 35volts.

Would either of those work?


Thanks,

AlexQS

Hi,

Peter in past suggested me to use Rubycon ZA 4.7microF and I bought them online at referenceaudiomods

Renato

[AlexQS]

Originally Posted by northernsky

Hi,

Peter in past suggested me to use Rubycon ZA 4.7microF and I bought them online at referenceaudiomods

Renato

Thanks a lot Northernsky!!

This is the best kind of help for me, when you list a vendor name as you have. Seems like half my problem is not knowing where to shop, but I'm learning.

Sincerely,

AlexQS

[beauistheman]

Originally Posted by Peter Daniel

You will find more info here:

LM3875 as a headphone amp (another try)
AudioSector-chip amp kits, dacs, chassis
Commercial Gainclone kit- building instructions

Thanks for those links, i had a good read. So from what i understand, you just changed the resistors for gain to almost double and thats all? So what about using a pot for on the fly gain adjustment? Not as nice if u use a pot?