50:23

Working out the flaws of this vas circuit and working out how to improve it (part1,long video)

21:57

My amplifier(s) design philosophy, also I some stuff left out about the power supply, I'm sorry!

01:56:52

Amp design, trying more things, spoiler alert I've already since discovered more....

02:19:50

Repair and re-cal of gaojie s998p desolder gun, I had to re-cal after the video again, it's good now

04:30

World's fastest repair! (Dcapro75 battery connection issue)

02:14:45

Trying to sort out the problems in my amplifier design!

01:22:08

Building the amps to find there's no bias after a few other issues now the vas Cs is too low in ma!

01:40:22

Macbook pro, motherboard swap, drive swap, screen connector issue, battery swap, charge port swap.

23:22

Transformer/rectifier snubbers plus ringing discovered and fixxed. Also voltage sorted for cap bank!

56:15

Compensation (oictpc) and new power transformer options for less dissipation plus some random stuff.

24:10

Last of the component upgrades, I still need to include oitpc back

01:04:47

The amp is working! Time to assess performance and Fit the oitpc circuit! And the last few upgrades!

08:05

How to save damaged / pinnless components!

59:15

Fixing the offset problem, sorry about the audio My editor screwed up and I deleted the files

01:05:51

There is a problem in the input stage, il breadboard that section tomorrow for troubleshooting.

25:18

Making up the load bank for amplifier testing

51:50

Checking things over and making corrections... also looking at Oitpc, but just miller comp for now

57:40

Aliexpress fakes (Part 3) good sellers shown! fakes vs real comparisons and brands logos list!

01:58:08

The boards for the amp are finnished!

02:19:22

More pcb population and a few design choices explained (boring long video imho!)

01:16:18

Populating more of the two big pcb's for the amp, not far off now!

49:05

Putting the amp together (some wiring and transistor layout)

27:34

I've just made up the last 4 pcb's for the amp project! (Excluding add-ons after its up and running)

10:15

A very quick repair! (Bannana to croc leads)

22:38

Datasheet to breadboard board (icl7660s) ep.04

34:34

The duoyi dy-294 transistor tester

13:04

One alive one dead, mini intercom crt's from aliexpress. Taking a quick look.

01:57:06

I Upgraded the amp design and have made some corrections...

15:35

Just a quick update on what's happening with the amplifier project as it's slightly delayed.

02:49:46

Chinese clone transistors and fakes from places like aliexpress (part2)

03:14:39

Aliexpress and China transistor factory fakes exposed (Part 1) and a bit of matching for the amps!

01:16:30

Matching transistors and looking at rubbish chongx low esr caps, (missing bias links noticed!!!)

37:30

Reply to comment in mc34063a video about drop out voltage vs headroom voltage for ripple rejection

11:35

Datasheet to breadboard ep.03 (lt1083)

15:49

Datasheet to breadboard ep.02 (tl431)

42:54

A slightly bodged ebike repair!

18:19

Datasheet to breadboard ep.01 (mc34063a)

35:53

Making the amplifier pcb's!

55:02

Designing the pcb and making it only 2 pcb's total for the whole amplifier circuit!

57:02

Taking the amp project all the way! After the end there is a bit of info I missed out!

24:48

Autopsy of cheap Chinese usb charger!

12:26

I added more filtering to the battery box as it's going to be used with low noise diff amps!

01:53:16

Working on the input stage further and testing things after solving some issues, pls see description

16:28

Op-amp tester.....quick look

52:01

Building the front end and vas, plus a look at some new load bank resistors !

01:14:46

The last of the ps stuff sorted, and the fan controllers sorted out (for cal) plus a small error!

42:01

I'm confused over these transformers, I can run them of a boost transformer but am still confused!!!

01:00:12

Fan controller boards etched and power supply issues being sorted out (not happy with my soloution)

01:03:39

Fan circuit design finnished, now transformer issues to sort out! (See description plz)

50:24

Simple temprature sensing fan controller for amps, I forgot to add regulators and caps but will!

01:34:22

Base suckout caps added, buffer boards complete... (yes I corrected the back to front components!)

02:30:53

Putting together the output stages for my amps (long assembly video)

01:03:10

Some driver matching from a new batch, plus the boards are finnished for the amplifier builds

01:28:24

Making up driver pcb's for the 500w amps and going over a few things, see description plz.

02:23

Short video about noise problem with astro's psu

39:41

Testing out the differential rf amp, see description for more info I can't fit here!

01:33:59

Battery box oscilation problem solved, you'll never guess what it ends up being!

01:46:48

I finnished the differential rf amp pcb, time to sort the battery box problem and get testing!!!

01:18:24

Progress with the pcb's for my amplifiers, new etching container to do multiple pcb's at once!

40:37

The pcb's are cut and the heatsinks are populated, now its time to etch!