[Hallicrafters] HT-33A Fan Assembly Needed

[garyislander]

Thanks Al,
Thats what it looks like to me.
A large dia. fan with about 8-10 blades.
It seems to be slightly larger in dia. than the tube and shroud.
It mounts below the PL-172 tube socket.
The case bottom vent plate is missing along with the fan assembly.
This amp probably had problems years ago.
But for free....I will try to salvage it if I can.
Most likely worth the effort.
Gary K1MQ

----- Original Message ----- 
From: "Al Parker" <anchor at ec.rr.com>
To: "Halliqth" <hallicrafters at mailman.qth.net>
Cc: "garyislander" <gary at garyislander.com>
Sent: Friday, April 16, 2010 3:40 PM
Subject: Re: [Hallicrafters] HT-33A Fan Assembly Needed


> The HT-33 fan is 6 or more inches in dia., not just a small muffin fan.
>  It provides cooling air under some pressure to the tube, which is in a
> shroud.
> 73,
> Al, W8UT
>
> On 4/16/2010 2:51 PM, Paul Kraemer wrote:
>> Gary
>> Kudos on the very nice find!
>> WW Grainger has a nice selection of these shaded pole fan motors and high
>> efficiency blades commonly used in small exhaust fans and range hoods. 
>> The
>> old mounting centers were typically 2" which is now 1 7/8", other than 
>> that
>> they are very close fit. I found one for an SB-200 linear. Motor plus 
>> blade
>> were about $17. At the time I noticed that the same one also fit a 
>> Heathkit
>> Warrior and CE 100V
>> The 3.5" computer fans run off a couple diodes on the filament 
>> transformer
>> do a nice job too but many of them don't like being that close to rf.
>> Paul K0UYA
>>
>>
>> ----- Original Message -----
>> From: "garyislander"<gary at garyislander.com>
>> To:<Hallicrafters at mailman.qth.net>
>> Sent: Friday, April 16, 2010 10:37 AM
>> Subject: Re: [Hallicrafters] HT-33A Fan Assembly Needed
>>
>>
>>> It is a bladed fan according to pictures I have seen of a HT-33A..
>>>
>>> I also found a SX-101A and a HT-32A in this same land fill.  Both units
>>> were in rough shape, but after much work I got both to operate properly.
>>> Both units were mice hotels, but they cleaned up pretty well.  Had to 
>>> hand
>>> make several adjustable coils in the HT32A, but thats the fun of 
>>> restoring
>>> these boatanchors.  Some rewiring, replaced some tubes and re-aligned as
>>> close to spec. as possible.
>>>
>>> Have made about 300 contacts with this setup with very good reports 
>>> using
>>> a D-104.  Forgot what it is like to work a contest with a seperate
>>> receiver and transmitter.   Maybe the amp can be saved and put into
>>> operation.....this one could be a long shot!
>>>
>>> Gary K1MQ
>>>
>>>
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