Hi there, Philippe From Montreal here.
Built a pair of full range speakers last summer using Audio Nirvana 10" ferrites.
Driving them with a very old SIMA integrated from 1994 that needs recapping.
Ordered the parts to build a tube 6BQ5 SE amp.
Have been reading a lot since the last 2 months about tube amps and would like to thank all of you for your contribution to this site; it is very informative.
Have a question about tube amp cooling but am not sure in which topic to post it. mind if I do it here?
Am thinking about using small fans to cool my amp. I currently have 1.5" fans I'd like to mount on the back panel of the amp, left side. Under the mains transformer. They are 12v fans, but I'd run them on 5v or 6.3v to keep the noise down. Would let the air from the fans exit through holes surrounding the tubes, which would be mounted on the front right side of the amp. The flowing air would carry the heat from the inside of the casing out through the holes surround the tube sockets, which would the help control the tube temperature by creating air circulation around them.
Do you think the fans would induce electromagnetic hum in the audio circuits, which would mainly be routed on the right side of the amp, away from the fans, mains, heater wiring, and HV, which would be mostly on the left side?
Built a pair of full range speakers last summer using Audio Nirvana 10" ferrites.
Driving them with a very old SIMA integrated from 1994 that needs recapping.
Ordered the parts to build a tube 6BQ5 SE amp.
Have been reading a lot since the last 2 months about tube amps and would like to thank all of you for your contribution to this site; it is very informative.
Have a question about tube amp cooling but am not sure in which topic to post it. mind if I do it here?
Am thinking about using small fans to cool my amp. I currently have 1.5" fans I'd like to mount on the back panel of the amp, left side. Under the mains transformer. They are 12v fans, but I'd run them on 5v or 6.3v to keep the noise down. Would let the air from the fans exit through holes surrounding the tubes, which would be mounted on the front right side of the amp. The flowing air would carry the heat from the inside of the casing out through the holes surround the tube sockets, which would the help control the tube temperature by creating air circulation around them.
Do you think the fans would induce electromagnetic hum in the audio circuits, which would mainly be routed on the right side of the amp, away from the fans, mains, heater wiring, and HV, which would be mostly on the left side?
Hi Philippe, welcome to the forums.
It might be better to post in the Tubes forum for more answers, but in general fans may have commutation noise which has be kept clear of the audio circuits.
Also am not sure, but you want to mind that there is a steady state temperature difference that needs to be maintained through the glass. If the outside is much cooler than the inside, it could crack. Probably better to blow through the amp, and let the naturally exhausting air cool the tubes.
It might be better to post in the Tubes forum for more answers, but in general fans may have commutation noise which has be kept clear of the audio circuits.
Also am not sure, but you want to mind that there is a steady state temperature difference that needs to be maintained through the glass. If the outside is much cooler than the inside, it could crack. Probably better to blow through the amp, and let the naturally exhausting air cool the tubes.
