I was looking for information on small (miniature Valve guitar amps)
And I found this I had to post it....😀..I think there are so cool..
Why do I get the itch to build one..😀..alas there is no circuit..
The site is here..
INK361 - A web interface for Instagram and so much more.
Regards
M. Gregg
And I found this I had to post it....😀..I think there are so cool..
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
Why do I get the itch to build one..😀..alas there is no circuit..
The site is here..
INK361 - A web interface for Instagram and so much more.
Regards
M. Gregg
Last edited:
So cute 🙂
I have been tempted to build one as i have a stash of 6021/6111 and 6BF7 tubes to try. If you find a good schematic please share...
I have been tempted to build one as i have a stash of 6021/6111 and 6BF7 tubes to try. If you find a good schematic please share...
Ideas for Schematics in the "100 buck amp challenge" thread.
My posts on pages 133 and 140 have been looking for a home. I even have the speakers 🙂
Cheers
JimG
My posts on pages 133 and 140 have been looking for a home. I even have the speakers 🙂
Cheers
JimG
OK guys,
Mine is a bit bigger (200 x 150 x 80mm) and weights circa 2.0 kg, but :
- it is a standalone unit : no external adaptor is required, it is powered directly by 230VAC mains.
- it uses a standard Noval format tube (an ECL86 / 6GW8 triode-pentode).
- it uses an AlNiCo 5"1/2 NOS 60's speaker.
- it delivers 2.5W RMS clean sound.
So considering that, I think that my RADIO-TONE amp can be accepted in this Small Tube Amps category...
A "desktop" guitar amp...
Compared to a biscuits metal box...
A quick sample, made in the recording situation as illustrated above :
https://soundcloud.com/tubelectron/r05-0002-radiotone-squier-cathedral-bluesmp3
A+!
Mine is a bit bigger (200 x 150 x 80mm) and weights circa 2.0 kg, but :
- it is a standalone unit : no external adaptor is required, it is powered directly by 230VAC mains.
- it uses a standard Noval format tube (an ECL86 / 6GW8 triode-pentode).
- it uses an AlNiCo 5"1/2 NOS 60's speaker.
- it delivers 2.5W RMS clean sound.
So considering that, I think that my RADIO-TONE amp can be accepted in this Small Tube Amps category...
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
A "desktop" guitar amp...
An externally hosted image should be here but it was not working when we last tested it.
Compared to a biscuits metal box...
An externally hosted image should be here but it was not working when we last tested it.
An externally hosted image should be here but it was not working when we last tested it.
A quick sample, made in the recording situation as illustrated above :
https://soundcloud.com/tubelectron/r05-0002-radiotone-squier-cathedral-bluesmp3
A+!
Hi guys,
just found this thread, I'm glad you liked my builds.
The schematics of some builds are visible at my photobucket:
Thomas_Eduardt_Hafemann's Library | Photobucket
like this one:
And some videos on youtube: https://www.youtube.com/user/Thomashaf
http://www.youtube.com/watch?v=h3of-DG4-4A
In my new approach I will try to use the PCl86 in a single tube head, as this:
A SMPS will provide the 200V-230V HV from a 12V wall wart, I just need to find a small 7k SE output transformer, since the transformer I was using has 11k and is a modified power transformer.
Tubelectron, I already asked some questions about your amp in another forum, but at that time I was looking for a speaker, now I'm interested in what kind of output transformer you used. Is that a champ transformer?
Is the hammond 125ase an option? I read it handles 3W, but only 25mA.
Probably my build won't work with max. plate dissipation, as I'm also reducing the plate voltage.
The PCL86 looks like a better choice than the PCL84, and the triode also has a little more gain.
Cheers,
Thomas
just found this thread, I'm glad you liked my builds.
The schematics of some builds are visible at my photobucket:
Thomas_Eduardt_Hafemann's Library | Photobucket
like this one:
And some videos on youtube: https://www.youtube.com/user/Thomashaf
http://www.youtube.com/watch?v=h3of-DG4-4A
In my new approach I will try to use the PCl86 in a single tube head, as this:
A SMPS will provide the 200V-230V HV from a 12V wall wart, I just need to find a small 7k SE output transformer, since the transformer I was using has 11k and is a modified power transformer.
Tubelectron, I already asked some questions about your amp in another forum, but at that time I was looking for a speaker, now I'm interested in what kind of output transformer you used. Is that a champ transformer?
Is the hammond 125ase an option? I read it handles 3W, but only 25mA.
Probably my build won't work with max. plate dissipation, as I'm also reducing the plate voltage.
The PCL86 looks like a better choice than the PCL84, and the triode also has a little more gain.
Cheers,
Thomas
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