[Hallicrafters] HT-33A Fan Assembly Needed

[garyislander]

Thanks Paul, I will check things out and see what I can do.  I do know that 
the fan must
be a high capacity unit to keep the PL172 cool.  They have always been a 
tough tube
to deal with even when new.

Thanks again,
Gary K1MQ

----- Original Message ----- 
From: "Paul Kraemer" <elespe at lisco.com>
To: "garyislander" <gary at garyislander.com>; <Hallicrafters at mailman.qth.net>
Sent: Friday, April 16, 2010 2:51 PM
Subject: Re: [Hallicrafters] HT-33A Fan Assembly Needed


> 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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