Search found 5381 matches

by ed
Fri May 12, 2023 12:41 pm
Forum: Solid State
Topic: testing
Replies: 26
Views: 9171

testing

last christmas I bought a secondhand laptop to do some recording away from the studio, the bella tapes. It occurred to me that I might resurrect the amp testing stuff using this laptop. I was intending to do the testing on the mofo, which I have decided to finish, despite the setbacks. So I used the...
by ed
Thu May 11, 2023 1:41 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16488
Views: 4834249

Re: Nothing In Particular

biblical rain here...

in the last 30 mins we've had 15mm..at one point for 5 minutes it was coming at 38mm per hour.
by ed
Mon May 08, 2023 6:18 pm
Forum: Solid State
Topic: even more lateral fets
Replies: 83
Views: 59882

Re: even more lateral fets

and here is the original mofo...
I seem to have lost the plot
mofo1 fr.jpg
mofo1 fr.jpg (63.79 KiB) Viewed 7832 times
by ed
Mon May 08, 2023 5:54 pm
Forum: Solid State
Topic: even more lateral fets
Replies: 83
Views: 59882

Re: even more lateral fets

mmmm...
mofo5 fr.jpg
mofo5 fr.jpg (65.27 KiB) Viewed 7839 times
by ed
Mon May 08, 2023 5:35 pm
Forum: Your Fave Artists
Topic: What Are You Listening To Right This Minute?
Replies: 6162
Views: 1903623

Re: What Are You Listening To Right This Minute?

Back_Door_-_The_Human_Bed.jpg
Back_Door_-_The_Human_Bed.jpg (109.69 KiB) Viewed 3663 times
by ed
Mon May 08, 2023 10:31 am
Forum: Solid State
Topic: even more lateral fets
Replies: 83
Views: 59882

Re: even more lateral fets

last installment, I hope...
mofo5 cct.jpg
mofo5 cct.jpg (130.45 KiB) Viewed 7876 times
mofo5 pcb.jpg
mofo5 pcb.jpg (216.63 KiB) Viewed 7876 times
by ed
Mon May 08, 2023 10:27 am
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 94
Views: 34820

Re: RTZ SDM (DSD) DAC

Just checking Ed when you say film stencil do you mean the cut sheet for applying paste or the solder resist mask on a PCB. I find having a metal paste stencil makes life many many times simpler when using a hot air gun. I would imagine using one and a oven would almost become trivial. yes, the cut...
by ed
Mon May 08, 2023 9:17 am
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 94
Views: 34820

Re: RTZ SDM (DSD) DAC

thanks guys I think I'll stick to through hole if I ever do another amp. The method Ray outlined with the rework is the method I used but to make it work I reckoned I needed film stencils to avoid bridges. Nick did my first breakout for me and I had to remove a couple of bridges with wick, it was at...
by ed
Sun May 07, 2023 12:59 pm
Forum: Everyones Projects
Topic: RTZ SDM (DSD) DAC
Replies: 94
Views: 34820

Re: RTZ SDM (DSD) DAC

I'm still a bit shy of smd...I've only used my rework station once and lost interest when I found it impossible to find acetate masks. I gather the situation has changed somewhat in regard to masks...but nevertheless, even tho I bought the usb microscope the deteriation in my eyes is not helping.......
by ed
Sun May 07, 2023 12:52 pm
Forum: Assorted Stuff
Topic: Nothing In Particular
Replies: 16488
Views: 4834249

Re: Nothing In Particular

what a difference a few hours can make.... when I read Ray's post and link the talk was all about heavy handed police behaviour ....then the news at lunch time focusses on the fact that the demonstrators were using rape alarms to make as much noise as possible... well, in view of the fact that this ...
by ed
Sat May 06, 2023 12:59 pm
Forum: Assorted Stuff
Topic: what are you doing ?
Replies: 1308
Views: 470102

Re: what are you doing ?

gonna have to watch it now. I haven't watched it since the original beeb series. somebody bought me the dvd and it's still unopened in it's original cellophane. It was the first time I'd seen Neve McIntosh and I immediately fell in love. I'm not disillusioned by her portrayal of the lizard women in ...
by ed
Sat May 06, 2023 11:41 am
Forum: Solid State
Topic: even more lateral fets
Replies: 83
Views: 59882

Re: even more lateral fets

post deleted...I now understand the previous post...

t means transistor!
by ed
Sat May 06, 2023 11:05 am
Forum: Assorted Stuff
Topic: what are you doing ?
Replies: 1308
Views: 470102

Re: what are you doing ?

jack wrote: Sat May 06, 2023 10:35 am Had a Republican Breakfast...
shame on you....snigger
by ed
Sat May 06, 2023 11:02 am
Forum: Solid State
Topic: even more lateral fets
Replies: 83
Views: 59882

Re: even more lateral fets

thanks Mike it does help... although, after reading all the TI ap notes I still don't understand why I need drive current to overcome the GS charging capacitance at low frequencies like audio. I am content with my lack of understanding though. I've amended the diagram to take R4 down to 68R and R3 d...
by ed
Fri May 05, 2023 9:12 pm
Forum: Solid State
Topic: even more lateral fets
Replies: 83
Views: 59882

Re: even more lateral fets

This is why I mostly use plain matrix board – stripboard if I must, but that can be a bit of a pain, cutting all those tracks, then cocking it up by cutting in the wrong place.... or missing one out... yeah but no but.... I thought I was being modern by giving up the paxolin and matrix board and tw...