Is the kit put out by S-5 about the only tube amp for under $200? Are there any possibilities for under $100? I am a younger DIYer... 17 now... and would like to build a good sounding tube amp for a pair of speakers that will be made in the future... I am still planning them out right now. They will be large, and have a sensitivity around 100dB 1W/1m, so a lot of power is not necessary at all. I have been looking at the S-5 kit for quite some time, but wonder if there is another option. Their "breadboard" is nice for organizational purposes, but really leaves me out in the dark when I want to make a great looking oak container for the amp. I would have to go around all its extra stuff, and I don't want to.
I recently found a local electronics store' they don't have tubes, but might have transformers. I don't know much about transformers either- they amp ratings, output power, etc. What do I look for?
Anyway, I appreciate your time reading this. If you can help me find a nice amp, I would appreciate it. Thanks
I recently found a local electronics store' they don't have tubes, but might have transformers. I don't know much about transformers either- they amp ratings, output power, etc. What do I look for?
Anyway, I appreciate your time reading this. If you can help me find a nice amp, I would appreciate it. Thanks
http://www.tubeaudio.com/page23.html
I have seen some topics about this amp before... They seemed to find it pleasing to the ears.
I have seen some topics about this amp before... They seemed to find it pleasing to the ears.
Re: IF YOU MUST....
The S-5 is very similar to the ASL Wave 8 (PP 6BM8) which cost about $200 for a pr of monoblocs.
Cheaper yet, requires the finding, aquisition, and refurbishing of an old console amp* -- SE EL84s are very common. With some creativity an under $100 amp can be created that can be quite musical. Stereo tube reel-to-reels are also a good source (Roberts made some with SE 6BM8s).
* i call them pheonix amps (as in risen from the dead)
dave
The S-5 is very similar to the ASL Wave 8 (PP 6BM8) which cost about $200 for a pr of monoblocs.
Cheaper yet, requires the finding, aquisition, and refurbishing of an old console amp* -- SE EL84s are very common. With some creativity an under $100 amp can be created that can be quite musical. Stereo tube reel-to-reels are also a good source (Roberts made some with SE 6BM8s).
* i call them pheonix amps (as in risen from the dead)
dave
Buy a working second hand amp such as a Dyna SCA35, or one of the similar Eico's, Fishers etc and refurbish it. There are a number of simple and cheap mods you can do to these that'll improve them quite a lot, such as bypassing the tone control section.
Or you could build a pair of these for about $US200 if you shop around for parts. Reports on AA from a couple of people who've built them is positive. The EL84/6BQ5/7189A family are really nice tubes.
www.triodeel.com/compact.html or
http://www.triodeel.com/dyna6bq5.gif
Iron both power and output, as well as PSU caps can be found on ebay for example. In the Xmas and period shortly thereafter, there are few buyers, and sellers are usually desperate to sell, so bargains are there to be had. This week I got a classic tonearm that I've wanted for years, for half the average reserve price, and almost nothing on my watchlist is getting bids.
Cheers
Or you could build a pair of these for about $US200 if you shop around for parts. Reports on AA from a couple of people who've built them is positive. The EL84/6BQ5/7189A family are really nice tubes.
www.triodeel.com/compact.html or
http://www.triodeel.com/dyna6bq5.gif
Iron both power and output, as well as PSU caps can be found on ebay for example. In the Xmas and period shortly thereafter, there are few buyers, and sellers are usually desperate to sell, so bargains are there to be had. This week I got a classic tonearm that I've wanted for years, for half the average reserve price, and almost nothing on my watchlist is getting bids.
Cheers
DIY.
Hi,
When I was a student,one of the major assets of DIY was that you didn't have to have all the cash at hand.
You just bought whatever you could afford whenever you felt like it.
Even when it meant ending up paying 10 to 20% more it was a convenience I found attractive.
Eventually,I still find the idea attractive even today...
It gives me a choice.
Whenever I bought a kit,I found myself spending more money anyway...you want to improve on where the engineers behind it had cut corners.
Not to mention all the things you learn in the process of decision making...
Viva DIY,
Hi,
When I was a student,one of the major assets of DIY was that you didn't have to have all the cash at hand.
You just bought whatever you could afford whenever you felt like it.
Even when it meant ending up paying 10 to 20% more it was a convenience I found attractive.
Eventually,I still find the idea attractive even today...
It gives me a choice.
Whenever I bought a kit,I found myself spending more money anyway...you want to improve on where the engineers behind it had cut corners.
Not to mention all the things you learn in the process of decision making...
Viva DIY,
I built an S-5 just for kicks and was supprised by how good it sounded. The general quality of the kit is OK. The transformers come trom Korea and I don't know much about them.
As supplied the amp sounds good. It's not a great amp. but with some improvements to the power supply it sounds quite nice with the speakers I've tried it with. I haven't done any measurements on it so I can't tell you much other than the one I have starts to clip signwaves around 9 watts as measured on a genrad power meter and Tek scope and has fair square wave response from about 150Hz. to 12kHz.
Later
Bruce
As supplied the amp sounds good. It's not a great amp. but with some improvements to the power supply it sounds quite nice with the speakers I've tried it with. I haven't done any measurements on it so I can't tell you much other than the one I have starts to clip signwaves around 9 watts as measured on a genrad power meter and Tek scope and has fair square wave response from about 150Hz. to 12kHz.
Later
Bruce
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