Cooling fan for tube amp?

Thanks all for the heads up on AC infinity cooling.
Their smallest fan at medium speed brought my UltraCap LPS 1.2 from 126° to 95° with silence @ 3 feet.

whitestix

... I need a fan to be mounted on the back of the rack ...

@whitestix why does the fan need to be mounted at the back of the rack? Your 2 inches of vertical clearance will accommodate an AC Infinity unit, which can then exhaust to the back or front of the rack.

Great suggestions, but I need a fan to be mounted on the back of the rack to cool the amp.  Just a wee bit of air movement will suffice. 

millercarbon

... the amp itself needs no cooling fan. Plenty of air flow even with a shelf above it.

I don't think 2 inches of vertical clearance is sufficient for any vacuum tube amplifier, even if the rack it's on is open on the back and sides. I have more than that and didn't think it was sufficient for my tube phono preamp, so I put an AC Infinity fan on it. Works great and can't be heard from my listening position. For $50, it pays for itself by extending tube life. After all, heat is the enemy of electronics. 

But we live in a world where audiophiles set their system cooling thingamajigs to 77 degrees. I don't have AC, my whole house doesn't stay that cool in summer. My tube amp is just fine. Now me, I could use a fan!

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Think of in the Bay area. I've seen 15-20 days of over 100.  It gets real hot where I live and use to work. (Imperial Valley, Vegas, Bakersfield).

I  use a different amp in the summer. (3 month or so). Just too darn hot.

I can't take the AC, dries me out, too. Basement time. Then I have to put up with background noise. Fans, and blower vents..
Water coolers are the best. But NOT on my stereo gear...Sure help with static, buildup though..

Regards

Right. The amp itself needs no cooling fan. Plenty of air flow even with a shelf above it. Which that, if anything, is what could use the fan. The shelf above it. Even then only the bottom of the shelf. Heat dissipates from the shelf, air flows around it all, and the component above just isn't going to get all that much hotter anyway. 

But we live in a world where audiophiles set their system cooling thingamajigs to 77 degrees. I don't have AC, my whole house doesn't stay that cool in summer. My tube amp is just fine. Now me, I could use a fan!

What amp?

If it needed a fan, they would have built one in, or stated so in the literature/specs. Enclosed, trapped heat, yes, but

I would never add a fan if I could re-arrange for an 'open air' arrangement.

My Cayin A88T has 4 KT88's, 2 6sn7, 2 6sl7. 
All of it's components are designed to operate without a fan, it's tube spacing determined by testing. It has no bottom vents, it's own feet for designed bottom clearance, a ventilated tube cover (I leave it off).

It is on the top in open air, no trapped heat, no fan needed.

Sold by AC Infinity.  I just looked at them, few to choose from, nice looking and reasonable. Rack or stack. I have a class a, or two, that sure could benefit from this.. Thanks for the suggestions.

Regards

I use an Airplate T7 cabinet cooling fan. This is a pair of fans which operate by a control which selects speeds, both manually and automatically by a setting the desired  temp. 

I use mine in open space mounted behind the amp in an open cabinet. At low speed it is very hard to hear with nothing else running. Mine is set up to pull air across the amps. (two amps - two sets of fans.) Works great!

Sold by AC Infinity.

Or one of these. Works great.

^ it's a link.

You could also use a PC cooling fan Blue Tacked to the chassis.