LYNX Power Amp PCB Group Buy interest

[Jan Dupont]

I have today sent a confirmation email to those I have email contact information on.

If you have ordered boards in the Wiki, and haven't received this email from me, then I'm missing your email address in my log.
If so, then please email me so I can contact you when the Group Buy ends.

Thanks for the interest

 

[housing]

Hello Jan,

Did you get my email a couple of hours ago?

Thanks!

 

[housing]

Haha........ Your email crosses my post.

Just got it! Thank you very much!

 

[Jan Dupont]

housing;


Gary;
My email could not be delivered to you !!!
"Recipient address rejected: Domain not found"

 

[Jan Dupont]

Ok

Seems that we only miss 10 pcb's in the group buy to reach 100

 

[gary s]

Hi Jan

Have sent you a pm with my home email address, thanks.

Please contact me there with all the details, thanks.

Regards

Gary..

 

[audioDIYer]

Seems that we only miss 10 pcb's in the group buy to reach 100

I may change from 4 to 6 PCB's as soon as the total count gets 98

 

[rikkitikkitavi]

helping u guys out by adding 6 pieces
What is the price for 200 pcs ?

Jan, expect an email with details

I almost forgot about this, how stupid of me...

/Rickard

 

[Landoctor]

I may change from 4 to 6 PCB's as soon as the total count gets 98

Go ahead and change your order, I just made it 98.

 

[audioDIYer]

Done

 

[Ed LaFontaine]

phhht!

I just made it 103.

 

[chalo]

I´ll better go with four.
I like this design, looks capable of very high performance!

 

[Jan Dupont]

Just for all to know.....

There will be made and posted an Quick Assembly Guide for the LYNX v3.0 as soon as I have finished it

 

[gary s]

Hi Jan

Good on you Jan. Keep up the good work.

Count is now up to 107 boards, anyone not signed up yet should get in as this is a very rock solid design.

Regards

Gary..

 

[Ragnwald]

Hi Jan,

I have signed up for 2 PCB's.

Regards

Ragnwald

 

[WJH]

I just signed up for 2 boards on the WIKI. Thanks for putting this group buy together as well as writing a Quick Assembly guide.

 

[Jan Dupont]

Several has asked me question regarding Rail Voltages for this LYNX Amp.

I can inform you that I run my Amps on +/-42 to +/-50 VDC (toroid 2x30 to 2x35 VAC, 300W per PCB).

I know many who uses higher voltages (with the onboard Current Limiting circuit disconnected), however I see no point in that as the SOA (Safe Operating Area) for the output devices then is easily reached

And last a warning!
Many have over the years emailed me with the same problem;
The driver transistors MJE15032/MJE15033 blows up when powered up first time....
I did also experience this in the beginning, until I realised that my MJE's was fakes !!! Trashed them all!
The original MJE's will NOT blow up! These transistors are perfect for this job, and used in many designs.

 

[gary s]

Hi Jan

Thanks for the timely information. Let's hope everyone heeds your advice.

Regards

Gary..

 

[chalo]

jan.

Can I use 2sc4793/2sa1837 in place of mje´s, as long as
2sc5200/2sa1943 for the output?

And what other options of opamp would work here?
opa 2134?

with the rails voltage you suggested what is the expected output?

Thanks and sorry for so much questions!

Regards.

 

[steenoe]

Hi Jan

Good on you Jan. Keep up the good work.

Count is now up to 107 boards, anyone not signed up yet should get in as this is a very rock solid design.

Regards

Gary..

OBS.
The WIKI totals 105 right now! Ragnwald and WJH are not on the WIKI list. Wonder what WIKI they signed up in.
If you are right and those two guys signed up, the total should be 111? Just wondering....

Edit. Oh, WJH just made it to the list, so total is now 107.