Scott, is there a specific reason you choose the THAT1583 over the THAT1580? The latter seems to has the better specs…
I once had the idea to put JFET source followers in front of the THAT1580 for a non-audio-application where a high input impedance and high gain where needed
No, I noticed too late there were two (the original sketch was done when the first was released).
Any diff pair that can get usefully below 1nV, I seriously don't know if the 8 parallel BF862 thing brings anything to the party.
All Mod Cons
This is how the proper proto is prepared to be. Two independent channels in one 70mmx60mm board with full extras and all modern conveniences
BAL/SE input selector, SE or BAL mode cap load pads when for MM, Zobel R&C when for step-up transformer's resonance compensation, DIP/SOIC second stage OP-AMP footprints, equalized -dB auxiliary output for "creative" uses (send off to a tubez second stage?), Rout buffer resistor for long interconnects or skip it with a blob pad, LT3045/LT3094 onboard regs of fine pitch to make hand soldering life miserable, rails inserts to skip the LTs altogether and power it directly there from external regs, or to can power something auxiliary from there when using the LTs. Sadly not including 4kTV, espresso machine, and a free trip to Mykonos
This is how the proper proto is prepared to be. Two independent channels in one 70mmx60mm board with full extras and all modern conveniences
BAL/SE input selector, SE or BAL mode cap load pads when for MM, Zobel R&C when for step-up transformer's resonance compensation, DIP/SOIC second stage OP-AMP footprints, equalized -dB auxiliary output for "creative" uses (send off to a tubez second stage?), Rout buffer resistor for long interconnects or skip it with a blob pad, LT3045/LT3094 onboard regs of fine pitch to make hand soldering life miserable, rails inserts to skip the LTs altogether and power it directly there from external regs, or to can power something auxiliary from there when using the LTs. Sadly not including 4kTV, espresso machine, and a free trip to Mykonos
Attachments
No chocolate-powder topping either ...
.
" Sadly not including 4kTV, espresso machine, and a free trip to Mykonos "
Perhaps a Lotto-Number
with every board ? ...
... For a chance to win
an espresso machine ?
" LT3045/LT3094 onboard regs of fine pitch to make hand soldering life miserable "
Sorry we couldn't get Tom Cruise for the 'Chipomatic' commercial.
" rails inserts to skip the LTs altogether and power it directly there from external regs "
It's a shame the board hasn't got at least 1 BIG ! space on it, for a really huge macho sized heatsink.
On the upside ... I suppose there will be plenty of room left in the 4U 19" case to install one off-board.
Si.
t.S.E.c
.
.
" Sadly not including 4kTV, espresso machine, and a free trip to Mykonos
"Perhaps a Lotto-Number
with every board ? ...... For a chance to win
an espresso machine ? " LT3045/LT3094 onboard regs of fine pitch to make hand soldering life miserable "
Sorry we couldn't get Tom Cruise for the 'Chipomatic' commercial. " rails inserts to skip the LTs altogether and power it directly there from external regs "
It's a shame the board hasn't got at least 1 BIG ! space on it, for a really huge macho sized heatsink.
On the upside ... I suppose there will be plenty of room left in the 4U 19" case to install one off-board.
Si.
t.S.E.c
.
Attachments
Eagle eyed lads (well... with microscopes or magnifiers) dimdim and Vgeorge are already equipped with those surface mount pcb thingies and a full BOM of tiny parts to build and use for a test. Yeah, good luck guys if there's a bug. Only in case I missed something in the prototyping
Me I kept a couple of those also but I will just finish a matrix green second channel copy for now not to throw the first one in the trash bin
Me I kept a couple of those also but I will just finish a matrix green second channel copy for now not to throw the first one in the trash bin
Attachments
A nice machine by any means! Lots of options on this.
Tell us your verdict when you reach to one!
