[Collins] Collins 51S-1

[Dr. Gerald N. Johnson]

Anodized or Alodined? There is a difference. Alodine was a standard 
process when I worked there for aluminum chassis. Some versions of the 
process involved toxic materials so have changed. > 
http://en.wikipedia.org/wiki/Alodine

73, Jerry, K0CQ, Technical Adviser to the Collins Radio Association

On 6/29/2012 1:11 PM, kingwood wrote:
> Greetings to all,
>
>          Does anyone have a 51S-1 parts unit?  I need the 17.5 Mhz crystal.
> Cash or trade.  I still have a good supply of small Collins parts available
> for trade.
>
>          Speaking of 51S-1's,  I just imported two receivers from the
> middle-east.  One is different from any I have seen before.  It has a gold
> anodized chassis, is Cedar Rapids manufactured, serial number MCN 5045, and
> standard 120/240 VAC power supply.  However the power supply is internally
> wired for 240 VAC, with no option to change to 120 VAC in the power plug.
> The power transformer is the same part number as my other 51S-1's.  There is
> no question that the power supply wiring was done at the factory.  I would
> appreciate comments.
>
>          I have seen several S-Lines with gold anodized chassis, but have
> never seen a 51S-1 like this.
>
>
> 73 de Lon, K5JV
>
> Lon W. Cottingham
>
> 1110 Golden Bear Ln.
> Kingwood, TX 77339
>
> 281-358-4207
> 281-795-1335 Cell
>
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