[ARC5] Collins 18S-4

[Bill Fuqua]

Here is a link, 
http://k4che.com/Collins%2018S-4/Page%202%20Station/Page%202%20Station.htm
You can see the crystal sockets and internal frequency jumpers and 
capacitors on inside, under a cover in center of radio,
and the ones outside under the "bump" cover.
Bill

At 01:11 PM 12/2/2012 -0500, Bill Fuqua wrote:
>   I got one years ago expecting it to have a nice receiver section.
>Very poor receiver with fixed tuned channels. Crystals and jumpers determine
>Transmit frequencies and tuning and receiver has multiple channels but LC
>tuned. There are jumpers and settings on both inside and under large front 
>cover.
>Receive simple superheterodyne with broad IF. I guess so that if it was 
>slightly
>off frequency it would still receive. I was disappointed. Don't even 
>recall what I did
>with it.
>   I suspect these were setup and tuned in shop before placing on aircraft.
>It would be very difficult to do it otherwise.
>  I think I sold it at Dayton.
>Mine was not very heavy because it did not come with dynomotor.
>
>73
>Bill wa4lav
>
>
>
>At 09:03 AM 12/2/2012 -0600, David Stinson wrote:
>>Forgive me if this has been discussed to death-
>>if it was, I didn't see it.
>>
>>What experiance is there in our community with the Collins18S-4?
>>
>>http://www.ebay.com/itm/271112883477
>>
>>
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