Power Amp advice needed, for my JBLs 4312 power thirsty...

.....

Zenmod may also have some F4 PCBs

......

nope

ZM is dealing strictly with Babelfishes; I'm leaving to others to deal with strict cloning adventures

there is nuttin' to Babelfish with F4, if we discount Babelfish M25 adventure

though, for some time no Sissy and no Babelfish M25, as long it needs to either get new quantity of ACS723-5 or devise new biasing scheme
 
that's what we said 🙂

M25 possibly without the transformer gain stage.

good morning friends, I would just like to start ordering some pieces 😀

well, what about the psu board?

this
Universal Power Supply – diyAudio Store

or this?

Netzteil PCB fur DIY First Watt Class A Endstufen! | eBay


do you have a reference power transformer builder ? (it's going to be long, i know)

oh yes, i'd like to add a protection circuit, and two vu meters on the front 😀
suggestions ?

thanks!
 
The diyaudio psu board is good.
As a general rule I only buy pcbs from diyaudio members or the diyaudio store.

Edit: You could check the group buy forum too

https://i198.photobucket.com/albums/aa276/aeroplane_album/F5PSUschematic.jpg

in the psu picture, i don't understand those 35A/200V coming out the rectifiter bridge?

the power transformer only has 2x 18V outlets no?

so in the end, what values do i need to obtain for rails voltage?

i'm really considering two monoblocks
 
it is not exactly Lego ...... you need to have at least half of idea what you're doing ..... considering both cost of parts ( you can easily transfer in smoke ) and -most importantly - lethal voltages at mains side of thing

are you sure that you're ready - maybe better to invest some time in reading, then using new knowledge while ordering parts and later in building it ?

good place to start : FIRST WATT
 
it is not exactly Lego ...... you need to have at least half of idea what you're doing ..... considering both cost of parts ( you can easily transfer in smoke ) and -most importantly - lethal voltages at mains side of thing

are you sure that you're ready - maybe better to invest some time in reading, then using new knowledge while ordering parts and later in building it ?



good place to start : FIRST WATT

My friend, I repair tube radios since many years now, and sporadically build some tube equipment... It's just my first time with transistors