A little research: old tube amps from the past

[SY]

The chassis is your friend.

It sounds like the MOSFET drivers would only be a minor contributor to your heat load. They put out less heat than a 6SN7 would.

 

[Tubelab_com]

10 to 15 watts could be dissipated in one of the heat sinks liberated from an old pentium chip.

My 845SE requires a big heatsink because I have 10 or so (X2) watts dissipated on each mosfet, another 10 or so watts (X2) in the source resistors (Caddock TO220), and 8 watts (X2) from the CCS chips. This adds up to over 50 watts. All of these devices are mounted to the same (big) heatsink. It gets slightly warm.

 

[Giaime]

10 to 15 watts could be dissipated in one of the heat sinks liberated from an old pentium chip.

Thank you!

However, the problem is: does it get too hot if I place the heatsink UNDER the top plate? do I have to put it necessarily in open air?

 

[Tweeker]

A slow turning fan would work, at the cost of having a fan. Is this top plate aluminum?

 

[Giaime]

I don't know. The amp hasn't been built yet, and I'm still in the design process.

I just wanted some ideas about the heat. A slower turning fan could be useful, maybe making an hole in the rear of the amp, to make it invisible to the user.

Thank you!