Gliding Dutchman
New Head-Fier
- Joined
- Mar 21, 2007
- Posts
- 31
- Likes
- 1
Hi there
It has been a long time since visiting here and I thought I'd share my latest DIY project as it is of high relevance of this forum!
I first set out to understand, for myself, better how amplifier circuits work - you know, what makes them tick! So I asked help on various forums from people with a good technical understanding of these stuff and they kindly guided me to construct a basic amplifier. I had some solid-state devices in my parts bin which turned out to be a rather common amplifier device - the famous 2N3055 NPN transistor (I have lots of NOS Siemens units) - also have some BC550's at my disposal.
Whilst testing I used my headphones to check the circuit and so I decided that I can develop this tutorial project into a working unit. I needed a headphone amp as my stereo amp is very minimalist and doesnt feature a headphone amp. The circuit developed nicely with help from friends - I am very happy with the sonic results. To put is plainly the sound is the best I heard from my cans EVER!
Here it is - the (DEWAUDIO) MINIMA SE, CLASS-A, H-AMPLIFIER.
Here is my project exicuted on Veroboard. (I hate veroboard but it works for this job)
The circuit is fully class A and the output transistors gets extremely hot!
Power is currently supplied by a 12v battery but I am working on a propper regulated PSU for highest fidelity.
Later I would like to do a popper PCB as well in a neat cabinet.
(NOTE: Current transistors used in the Veroboard unit is SJE5300's from Motorola mounted in old CPU heatsinks for a LAN switch)
Cheerio
Dewald
It has been a long time since visiting here and I thought I'd share my latest DIY project as it is of high relevance of this forum!
I first set out to understand, for myself, better how amplifier circuits work - you know, what makes them tick! So I asked help on various forums from people with a good technical understanding of these stuff and they kindly guided me to construct a basic amplifier. I had some solid-state devices in my parts bin which turned out to be a rather common amplifier device - the famous 2N3055 NPN transistor (I have lots of NOS Siemens units) - also have some BC550's at my disposal.
Whilst testing I used my headphones to check the circuit and so I decided that I can develop this tutorial project into a working unit. I needed a headphone amp as my stereo amp is very minimalist and doesnt feature a headphone amp. The circuit developed nicely with help from friends - I am very happy with the sonic results. To put is plainly the sound is the best I heard from my cans EVER!
Here it is - the (DEWAUDIO) MINIMA SE, CLASS-A, H-AMPLIFIER.
Here is my project exicuted on Veroboard. (I hate veroboard but it works for this job)
The circuit is fully class A and the output transistors gets extremely hot!
Power is currently supplied by a 12v battery but I am working on a propper regulated PSU for highest fidelity.
Later I would like to do a popper PCB as well in a neat cabinet.
(NOTE: Current transistors used in the Veroboard unit is SJE5300's from Motorola mounted in old CPU heatsinks for a LAN switch)
Cheerio
Dewald