I hope some of you remember me. I posted a thread re a 2N3055 power supply I was making - or trying to. I decided to take time away from the Forum to learn a little more about electronics. My 50 year gap was just too much to catch up with todays electronics hobby.
It was due to your help I realised that I still had the 'urg'. I have built 2 power supplies. One has a fixed output of 26V and around 7A. The other uses 2 TIP35C's driven by an LM338. Both are in old PC power supply cases. These are purely as a learning exercise. They have been on a scope and I was pleased to see they were 'quite reasonable'. They are now going to be taken apart for hopefully better boxes and a neater setup, etc.
I have also started my 3rd power supply. It's a much modified Monacor amp that died due to beer. I intend using the 4 x TIP35C and 27V 8.88A toroidal transformer. The 40V DC around 5A transformer in the Monacor is going to be used to drive the TDA7498 and E version and the TPA3116D2 D Class amps I have (with just V adjustment). Unfortunately I caught a terrible affliction, it's called EBAY. The circuit shown many of you will recognise as an old faithful. Just another step towards ?
I also have quite a few buck converters of almost every type I might feasibly need. That's a mains to 24V DC 8.5A behind the Monacor.
I fully appreciate that kit from China has a bad reputation. None of the essential parts have come from there but I do intend to try things like power transistors, etc. The items I have used have so far done their job including the linear Tenma power supply.
I will post from time to time and no doubt I'll run into problems that I hope you can find the time to answer.
I just wanted to let you know your time was not wasted.
Cheers amd a belated Happy New Year to you all.
It was due to your help I realised that I still had the 'urg'. I have built 2 power supplies. One has a fixed output of 26V and around 7A. The other uses 2 TIP35C's driven by an LM338. Both are in old PC power supply cases. These are purely as a learning exercise. They have been on a scope and I was pleased to see they were 'quite reasonable'. They are now going to be taken apart for hopefully better boxes and a neater setup, etc.
I have also started my 3rd power supply. It's a much modified Monacor amp that died due to beer. I intend using the 4 x TIP35C and 27V 8.88A toroidal transformer. The 40V DC around 5A transformer in the Monacor is going to be used to drive the TDA7498 and E version and the TPA3116D2 D Class amps I have (with just V adjustment). Unfortunately I caught a terrible affliction, it's called EBAY. The circuit shown many of you will recognise as an old faithful. Just another step towards ?
I also have quite a few buck converters of almost every type I might feasibly need. That's a mains to 24V DC 8.5A behind the Monacor.
I fully appreciate that kit from China has a bad reputation. None of the essential parts have come from there but I do intend to try things like power transistors, etc. The items I have used have so far done their job including the linear Tenma power supply.
I will post from time to time and no doubt I'll run into problems that I hope you can find the time to answer.
I just wanted to let you know your time was not wasted.
Cheers amd a belated Happy New Year to you all.