Pictures of your diy Pass amplifier

[schultzsch]

Hello karajak!
Where did you buy the plate with pass inscription?
Btw very nice build!

 

[karajak]

Hi !
I ordered it from a local label creator shop after giving them a pdf file of how I want it.
It was a bit pricey -10 euro- but aesthiticaly I think worth it.
Regards schultzsch !

 

[ElectroNick]

Love the all DIY serviceable part inside sign on the back .

😀

Where you get the heat sinks ?

I got 'em from Seifert-Electronic (model KL-271, length 200mm)

Regards,
Nick

 

[schultzsch]

It's not much! Looks very good!

 

[Kooka]

Thanks to all , the sound is wonderful .
Using this p.s. is I thing a big improvement .

Hi, can you tell me where you got this psu, please?

 

[karajak]

Hi! If you mean the pcb it is from Jims audio -China.
It is very nice , heavy duty .

 

[Kooka]

Hi! If you mean the pcb it is from Jims audio -China.
It is very nice , heavy duty .

Got it, thanks. I know him well.

 

[micha b]

Finally, the mechanical issues are done, just have to search for genuine J74 FETs...

Two quick pics from the outside.
Since I'm still working on a preamp, pics from the inside will follow after completion.

 

[MASantos]

Finally, the mechanical issues are done, just have to search for genuine J74 FETs...

Two quick pics from the outside.
Since I'm still working on a preamp, pics from the inside will follow after completion.

View attachment 471377

View attachment 471378

You can get them from spenser at fetaudio.com, genuine and he has sold to members for a long time.

 

[valvesound]

Really nice work micha b! which Pass design is it?

 

[jackinnj]

Micha -- it has that Phillip Johnson look --

 

[Zen Mod]

Finally, the mechanical issues are done, just have to search for genuine J74 FETs...

Two quick pics from the outside.
Since I'm still working on a preamp, pics from the inside will follow after completion.

View attachment 471379

View attachment 471380

Fugly!

 

[jacco vermeulen]

(Fünfly ?)

 

[labjr]

The DIY store no longer has the Linear Systems parts?

 

[bcmbob]

Really nice work micha b! which Pass design is it?

+1 😉

 

[6L6]

The DIY store no longer has the Linear Systems parts?

The store will temporarily not have any of the LSK170 and LSJ74 for sale in thier current format of un-matched (4) peice lots.

The devices are being sent to the secret underground testing facility and laboratory to be sorted into matched pairs for sale in the store. Also the possibility of stocking transistor kits for some of the various amp designs has been discussed.

 

[Zen Mod]

feel free to send all those LSJ74 to OPLDF , for proper disposal procedure

 

[marsupialx]

Quote: "The devices are being sent to the secret underground testing facility and laboratory to be sorted into matched pairs for sale in the store. Also the possibility of stocking transistor kits for some of the various amp designs has been discussed. "

-that's great news!!! When???

 

[micha b]

Sorry, I did not mention.... It's a F5.

Thank you for your comments, design followed availability of heat sink and speaker design which you can find here: http://www.diyaudio.com/forums/full...ge-speaker-photo-gallery-314.html#post4213543

Thank you for your advice redarding j74, found a source in Ireland, already ordered a few.

 

[MASantos]

The store will temporarily not have any of the LSK170 and LSJ74 for sale in thier current format of un-matched (4) peice lots.

The devices are being sent to the secret underground testing facility and laboratory to be sorted into matched pairs for sale in the store. Also the possibility of stocking transistor kits for some of the various amp designs has been discussed.

Now this makes a lot of sense!!! Very little use for unmatched devices, I guess that matched pairs will have much more demand!