you can expect LuDEF P in few months
practically, Babelfish XA252 front end combined with LuDEF output stage
there is no challenge for me in combining Papa's FE Verbatim with anything
though, you're making rules in your own Legoland ......
power and dissipation - depending of rails and Iq of your choice; if these same as prescribed for LuDEF, then same power and heat
practically, Babelfish XA252 front end combined with LuDEF output stage
there is no challenge for me in combining Papa's FE Verbatim with anything
though, you're making rules in your own Legoland ......
power and dissipation - depending of rails and Iq of your choice; if these same as prescribed for LuDEF, then same power and heat
More 2SK2145-BL on the way, but also...
For those of us late to the party, Mouser expects ~2.6K units of the Toshiba end of December 2021, and many Ks more in January 2022.
As a dilettante, I don't follow the flux of supplies on things much; has this part been out of stock for a while? Or was my timing just bad?
Also, while poking around, I found the 2SK3320-BL, which appears to be similar, but with a lower power rating (200mW vs 300mW). It seems like it would be a worthy replacement, no?
Kind regards,
Drew
For those of us late to the party, Mouser expects ~2.6K units of the Toshiba end of December 2021, and many Ks more in January 2022.
As a dilettante, I don't follow the flux of supplies on things much; has this part been out of stock for a while? Or was my timing just bad?
Also, while poking around, I found the 2SK3320-BL, which appears to be similar, but with a lower power rating (200mW vs 300mW). It seems like it would be a worthy replacement, no?
Kind regards,
Drew
ZM, you are up too late.... so late that it's early.
Or you're on the other side of the world 😕
Kind regards,
Drew
as far as I know, 2145 are of actual production, but you can buy them only when available - as any other part recently
availability of all parts in general , is more erratic since Covid crisis started
in most cases, some earlier planning (for keeping your own stock alive) is all is needed
in this moment I'm good with everything, especially because I'm in a middle of obtaining some serious quantity (at least for my capacity) of Metglas and Finemet cores for I. Pumpkins, same as fancy remote controls for same and for various other gadgets (needing remote control)
when these arrive in my hands, I'll be happy camper
availability of all parts in general , is more erratic since Covid crisis started
in most cases, some earlier planning (for keeping your own stock alive) is all is needed
in this moment I'm good with everything, especially because I'm in a middle of obtaining some serious quantity (at least for my capacity) of Metglas and Finemet cores for I. Pumpkins, same as fancy remote controls for same and for various other gadgets (needing remote control)
when these arrive in my hands, I'll be happy camper
if you want to build LuDEF, I'm sending matched LU if one ask for them...... already soldered to small Al daughter boards
still have some
if my stash ever dry out, I know whom I'm going to ask to send me some
still have some
if my stash ever dry out, I know whom I'm going to ask to send me some
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I'm building Mr. Ralph Stens Xono-2019 clone, but I don't know how to pair the 2sk2145GR , can anyone give me advice on this?
Thanks.
Thanks.
you need SOT-232 matching fixture/socket
easiest to get them from E-Bay - few sellers, just take care choosing one without neg. ticks
15$ and upwards
rest is easy - when you obtain one, buzz and I'll post small sketch what's needed (7809 reg, switch, small relay, few 2mm sockets for DMM probes)
easiest to get them from E-Bay - few sellers, just take care choosing one without neg. ticks
15$ and upwards
rest is easy - when you obtain one, buzz and I'll post small sketch what's needed (7809 reg, switch, small relay, few 2mm sockets for DMM probes)
see, example - DIP SOT23-6L SOT23 To Chip IC Programmer Adapter Test Converter Sockets | eBay
trusted seller - at least I got one from him
trusted seller - at least I got one from him
Thank you ZEN MOD, I will definitely order, but then can I read the parameters of the 2sk2145 GR with ATLAS PEAK DCAPRO 75 ? 😕
Collecting parts for LuDEF on Mouser and have some noob's questions about the suitable alternatives.
10uF 16V 20% Audio SILMIC II - out of stock
What alternative would you recommend to go with:
Elna 10uF 35V 20% Audio SILMIC II or
Nichicon 16volts 10uF AEC-Q200
IRFP9140PBF - out of stock
Is the Infineon / IR IRFP9140NPBF the same thing?
What variant of BD139 (and BD140) is better: BD139-10 (hFE 63-160) or BD139-16 (hFE 100-250)?
Is BC546B good enough as BC546C is not available.
I also have BC550C on hands (lower max voltage ratings than BC546) - would it be a suitable replacement?
Would be thankful for comments
10uF 16V 20% Audio SILMIC II - out of stock
What alternative would you recommend to go with:
Elna 10uF 35V 20% Audio SILMIC II or
Nichicon 16volts 10uF AEC-Q200
IRFP9140PBF - out of stock
Is the Infineon / IR IRFP9140NPBF the same thing?
What variant of BD139 (and BD140) is better: BD139-10 (hFE 63-160) or BD139-16 (hFE 100-250)?
Is BC546B good enough as BC546C is not available.
I also have BC550C on hands (lower max voltage ratings than BC546) - would it be a suitable replacement?
Would be thankful for comments
10uF-22uF Silmic, don't care for voltage
ignore suffix after 9140
BD.... 16 is better, if you look at stars; practically - all what is important is that is from reputable vendor
BC .........B or C - same story
yes, you can use 550 in place of 546, in this case
ignore suffix after 9140
BD.... 16 is better, if you look at stars; practically - all what is important is that is from reputable vendor
BC .........B or C - same story
yes, you can use 550 in place of 546, in this case
I am finding a problem adjusting offset and bias on ludef. I have prepared one channel only and I am working on that. Everything else is set but the offset is ~1.2V on the output and I cannot adjust to 0V. Altering the offset actually alters the bias. The two trimmers are coupled somehow.
Overall a 1 step forward 3 steps back kind of a weekend... so close and yet so far... 😉
Overall a 1 step forward 3 steps back kind of a weekend... so close and yet so far... 😉
just measure what I told you , and post some pics
and - usual drill - re-check all resistor values and positions, other parts too, orientation of zeners and their placement too
and - usual drill - re-check all resistor values and positions, other parts too, orientation of zeners and their placement too