we decided on power coated old school coating
AM44 with 14inch table. brings down the cost.
and work perfect.
the latest card. ultracut_monsel (monitor selector card)
a monitor selector for input, Feedback and integrated phonopre.
input, phonopre level and output is adjustable.
output is balanced with THAT1646
finally first two ultracut systems left the lab soon.
i added a few new features.
the great blameless based power amps and the protection cards are still same.
otherwise all is brand new.
ultracut is close to SAL74 amp system but with much better amps. close signal path. and yes. brand new..hehe
first AM44 machine left my lab:
equipped with a
professional Pitch13 system,
16″ vacuum turntable and
TT15 direct drive
it will be already close to a good neumann VMS70.
there are still a few parts in prototype stage like arm and suspension box.
but we work hard to get those parts to a final stage.
ballpark price for a working system based on caruso head and simple fixed pitch will be around CHF 15’000.
stay tuned for more news.
first batch of LOV74N and LOV74P arrived.
will be tested soon and main batch is ordered.
plug&play SAL74 amplifier cards.
– all new built.
– with much better performing transistors than the old MJ410/MJ423.
– 115um copper traces.
– increased voltage bypass caps.
– available parts
with this cards SAL74C rack is complete and we can soon provide brand new built SAL74C racks.
just machined the new AM44 turntable bearings.
still in conceptual phase. but i guess this is the way to go.
main concept is similar to the Neumann approach:
bronce sinter glide berarings
and Axial Bearing
but i also include a 1000 imp/rev encoder on the axis.
the vacuum is taken through the axis.
and the bearing plate will have the screws to adjust the height.
as TT15 does not need a heavy casted iron turntable anymore this is much better
for brushless, direc drive motors.
Got now enough microscope arms for the AM44.
casted aluminum.same dimensions and same holes and mounting for AM31-VMS70.
First one machined and ready to paint.
another missing piece in the LOV74C chain.
this time we have the first LOV74V prototype running nicely.
we will change to more recent transistors and work on increased stability.
we also sourced and ordered all important power transistors for LOV rack. so we can ensure service another decade.
just received a first batch of midi2lathe prints.
they fit an arduino nano. so programming is easy!
all optocoupler for START/STOP/FAST/MARK
and 4 LEDS for control.