What are my options for blower fan for my Globe 500C?

[ke7trp]

This one is dead, I have oiled it and tried my best. I think its just time for a new one. I searched around the net and could not find the exact one. Its a small Cage fan that pressurizes the RF deck for the 4-400 final. Any 500C owners out there that found a replacement?

Oh its 117 volt AC

Thanks in advance!

Clark

[K4TLJ]

McMaster Carr has a selection.

http://www.mcmaster.com/#blowers/=1csako

[ke7trp]

Nothing on there but large industrial blowers. THis one is no larger then your fist.

Clark

[K4TLJ]

Look at 'Miniature Blowers' under the Air Intake Blowers....
expensive though.

[ke7trp]

There is one that might work. Thanks.. $151 is pricey though... Surplus sales has one for $85 that might work also. Today, I am going to take the factory blower off the RF deck and attempt to pull the bushings out. I found a local bearing house. Maybe I will get lucky.  If anyone comes up with something let me know. I will take pictures of it today.

CLark

[Detroit47]

How about Grainger? Grainger.com
73 N8QPC

[K7LYF]

Clark, look for an electric motor repair shop. They should stock most serviceable electric motor bushings.

Good luck.

mike

[W1RKW]

Clark,
PM me with some pictures of the blower. Include a ruler in the pictures.  I think I may have something that might work.

[k4kyv]

I  have been running rigs capable of a kw++ for over 45 years, and I have never used a cooling fan.  The only exception to that is my converted Gates BC xmtr, but its fan was too noisy.  So I rewired it for 120v; it still moves air but makes much less noise.  But I added an on/off switch, and rarely turn the fans on.

Convection cooling is cool.  Forced air cooling sucks.

[N3DRB The Derb]

some of these hot boxes there's just no way to cool without forced air. My HB rig didnt need a fan because there was lots of empty air around the 812H's, no enclosure at all actually. 

other side - I'd never even use a FT101 without the fan even on SSB.

[ke7trp]

I just cant imagine running this rig with its rack mount cabinet and the 4-400 with no fan. I would think the something would go wrong with all that heat.

I am using a 4 inch muffin fan with rubber feet on the top of the GLobe running off a Variac. Its keeping it cool until I can get a replacement blower. The stock cage fan is pressurising the bottom of the RF deck and allowing air to run across the Tube seal.

Clark