Flench is a bit tricky to translate because words are often written together.
For example, "lorsqu'ils" are actually three words : lors que ils.
(Lors means "at the time", Lors Que got hooked together in time to Lorsque and means "when", same same )
First line says you set the 100R pots to maximum before you solder them in.
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you mean the preamp? This thread is for the power amp so it may get confused.
. Sorry for the confusion.
If they share the same HS they will share the same temperature. This way, bathing in some kind of temperature equilibrium, all critters will be happy to work together for your musical pleasure and will thank you because they ll feel like in nirvana.
Le cheff's setup suggest to do this way, why changing a winning team ?...
"Régler" means most of the time : regulate, adjust, set ... which is obvious in this context.
Just sometimes it means "pay". Like getting out of your debt, for instance ...
Ah, those Google robot ...
Manu
If they share the same HS they will share the same temperature. This way, bathing in some kind of temperature equilibrium, all critters will be happy to work together for your musical pleasure and will thank you because they ll feel like in nirvana.
Le cheff's setup suggest to do this way, why changing a winning team ?...
Because I do not have the original PCB, nor the similar heat sinks (in height). So I am asking people ho know much more for advice. Especially for transistors Q13 and Q14. (Bias stability, thermal drift)
Aye, aye, Captain
The HS dedicated to all the 2SA & 2SCs Q4 to Q14 don't have to dissipate a lot of heat but should be thermally coupled with the one supporting the MOSFETs for Bias & Offset stability.
Hope it helps
Manu
Aye, aye, Captain
The HS dedicated to all the 2SA & 2SCs Q4 to Q14 don't have to dissipate a lot of heat but should be thermally coupled with the one supporting the MOSFETs for Bias & Offset stability.
Hope it helps
Manu
It helps, thanks.
Hello,
For those who might be interrested I started an UP PCB group buy initiative on the french forum (homecinema-fr.com).
[Recensement] CG PCB kit UP - Achats Groupés
currently there are 4 people interested in getting the PCBs (for a total of 5 sets of PCBs) .
we need a minimum of 10 sets to be ordered (in this case the price without shipping cost from my premises should be around 88€ for a set and it will drop further down if we order more).
let me know if you are interrested and I will update the first post in english to ease the communication process so you can then add your name to the list of potential buyers
Franck
For those who might be interrested I started an UP PCB group buy initiative on the french forum (homecinema-fr.com).
[Recensement] CG PCB kit UP - Achats Groupés
currently there are 4 people interested in getting the PCBs (for a total of 5 sets of PCBs) .
we need a minimum of 10 sets to be ordered (in this case the price without shipping cost from my premises should be around 88€ for a set and it will drop further down if we order more).
let me know if you are interrested and I will update the first post in english to ease the communication process so you can then add your name to the list of potential buyers
Franck
Question about driving output mosfets.
I am building some of these amps and I had a question about the design. How was the current through Q7 and Q9 determined in order to drive the six output mosfets? (See the attached pic) Just wanting to find out if I can get away with less current in order to use cheaper and easier to find transistors for Q7 and Q9.
I am building some of these amps and I had a question about the design. How was the current through Q7 and Q9 determined in order to drive the six output mosfets? (See the attached pic) Just wanting to find out if I can get away with less current in order to use cheaper and easier to find transistors for Q7 and Q9.
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sorry - I didn't want to sound harsh ....
in any case - proper question will be - which transistors - easier to find - are good as replacement ........
I'll skip answer to that question , because I didn't tried replacements ; maybe 2SA1837 & 2SC4793