GB: A Simple Discrete Current-Mirror IV Converter, à la AD844

[EUVL]

Can you read dxf ?


Patrick

 

[nautibuoy]

Yes, dxf is not a prob.

 

[EUVL]

I don't do this normally.
So one-time exception.


Patrick

.

 

[nautibuoy]

Thanks Patrick

 

[seppstefano]

GB2/Waiting List

Kokanee - 2 PCB + 12 transistors
baswamin - 2 PCB + 12 transistors
asanden - 2 PCB + 12 transistors
simon dart - 4 PCB + 24 transistors
BRN - 2 PCB + 12 transistors
Myint -2 pcb + 12 transistors
Johnny Canuck - 1 pcb + 6 transistors

seppstefano - 1 PCB + 12 transitors (assuming 1 PCB set means 5 boards (a pair for each channel + 1 spare) and we have 3 transistor per channel

Others who are interested, please update the above list.

Thank you

 

[Johnny Canuck]

GB2/Waiting List

Kokanee - 2 PCB + 12 transistors
baswamin - 2 PCB + 12 transistors
asanden - 2 PCB + 12 transistors
simon dart - 4 PCB + 24 transistors
BRN - 2 PCB + 12 transistors
Myint -2 pcb + 12 transistors
seppstefano - 1 PCB + 12 transitors (assuming 1 PCB set means 5 boards (a pair for each channel + 1 spare) and we have 3 transistor per channel

 

[Johnny Canuck]

Have removed my name from the wait list on GB2.
Opted to draft and fab boards using surplus 2SA1312BL/2SC3324BL from another project - thermal coupling won't be as good as the transistors used in these EUVL-designed GB boards.
I will update when/if I get them working.

 

[EUVL]

Ripster,

Kindly check PM please.


Thanks,
Patrick

 

[tistvan2]

GB2/Várólista

Kokanee - 2 PCB + 12 tranzisztor
baswamin - 2 PCB + 12 tranzisztor
asanden - 2 PCB + 12 tranzisztor
simon dart - 4 PCB + 24 tranzisztor
BRN - 2 PCB + 12 tranzisztor
Myint -2 pcb + 12 tranzisztor
seppstefano - 1 PCB + 12 tranzitor (feltételezve, hogy 1 PCB készlet 5 kártyát jelent (egy pár minden csatornához + 1 tartalék) és csatornánként 3 tranzisztorunk van

tistvan2 - 1 PCB + 12 tranzisztor

 

[EUVL]

We can supply PCBs any time.
But one of you should contact Ripster and see if he is prepared to doanother batch of matching.
Right now, the transistors are not in stock at DK or Mouser.
Another month or so at least..


Patrick

 

[Kokanee]

I have opened a conversation with Ripster concerning the matching of the transistors for the people in GB2. I am awaiting a personal reply or a comment on this thread. Fingers crossed.

MM

 

[seppstefano]

Great!!!

 

[nautibuoy]

I have opened a conversation with Ripster concerning the matching of the transistors for the people in GB2. I am awaiting a personal reply or a comment on this thread. Fingers crossed.

MM

Isn't it putting pressure on Ripster by announcing your conversation publically here? I would have waited for his personal reply and given him space to decide whether he can commit to matching the transistors - it's a big undertaking.

 

[Kokanee]

@ nautibuoy, thank you for your concern and your personal views on how you would have handled this conversation. It is very enlightening.

 

[EUVL]

It does not look like Ripster wants to do another round.
And I don't blame him.

May I suggest one of you to volunteer to take his place to organise.
I counted 14 sets of PCBs (2 L&R pairs plus one spare).
Whether you want to do group match or match your own, or even don't match, I leave it up to you.
The circuit will work with unmatched devices, but there might be some difference in distortion between channels.

That would be our offer, to ship all PCB sets to one address.


Thank you in any case for your interest,
Patrick

 

[jimk04]

I would take on distribution of pcbs if that helps. May take me some time to organise.

 

[EUVL]

Thank you for coming forward.
As soon as you are ready, please get in touch with Member CeeVee.
He'll take care of your needs.


Patrick

 

[Kokanee]

Hi EUVL,
Paying double shipping from CeeVee to jimK04 and jimk04 to me in Canada does not make sense for me. Better if I just order my 2 sets from CeeVee. Any problem with doing this?

MM

 

[jimk04]

I think the boards will come from Patrick (EU), not from CeeVee

 

[EUVL]

We pay for the (bulk) shipment to Jim, as we did to Ripster.
Everyone ordering individually from us means we have to pack, post and track 8 to 10 shipments.
If you have done it once, you know how much work it is.

Of course, best solution is you take over from Jim, since he is not even on the 2nd GB list, but you are.
Then you don't even pay any postage, because we'll ship to you at our costs.


Patrick