I’m sure most of us can relate to this scenario: Perhaps you’ve constructed a low power project with nice audio and intend to drive a linear for that extra and needed power on the bands.. But the reality is noise, heat, and ultimately a pain to interface if the linear uses tubes that require forced air (as in most).. Our on-air presence and signature is all about the sounds that make it to YOUR receiver.. Which leads me to this statement : I HATE FANS . Yes, the sound of fans, the look of those plastic or metal blades ready to push the air into our linears, and into our audio chain.. Yes, fans suck (or blow) but are needed especially in any high-duty service like AM ! I have quite a few linears around here including a Johnson desk RF section that now uses 3-500’s in grounded grid with a homebrew supply at 3.8K volts. It’s a great unit to get over 250 watts and headroom but requires lots of AIR .. = F A N S which = NOISE .. So, here’s my question to the group.. I have this closet behind my operating position, and I’m thinking about mounting the linear and supply behind that closet door... The problem of course will be the actual ventilation inside with the door closed. So.. -Drill a hole and a hose through the closet floor into the basement to suck the heat out? -Let the heat build up and open the door once and a while? -Forget the whole deal and get on 2 meters (don’t answer that) .. Come out of the closet and share your noisy FAN experience ..