[Milsurplus] Anybody ever played with a FC141-1 CAA fixed tuned single freq HF receiver?

[Thomas Adams]

Or better still...  is the oscillator set up for 3rd or 5th overtone mode of t/he crystal?


All of those digits after the decimal in the marked frequency leads me to think so.


Mr. T.


-----Original Message-----
From: STEVE JOHNSTON via Milsurplus <milsurplus at mailman.qth.net>
Sent: Sep 30, 2026 8:58 AM
To: <milsurplus at mailman.qth.net>
Subject: Re: [Milsurplus] Anybody ever played with a FC141-1 CAA fixed tuned	single freq HF receiver?




Could the crystal oscillator have a doubler or tripler after it? 


73 


Steve WD8DAS




Sent from my iPhone


> On Sep 29, 2026, at 9:43 PM, milsurplus-request at mailman.qth.net wrote:
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>   1. Anybody ever played with a FC141-1 CAA fixed tuned    single
>      freq HF receiver? (Charlie L.)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Tue, 29 Sep 2026 22:42:23 -0400
> From: "Charlie L." 
> To: milsurplus at mailman.qth.net
> Subject: [Milsurplus] Anybody ever played with a FC141-1 CAA fixed
>    tuned    single freq HF receiver?
> Message-ID:
>    
> Content-Type: text/plain; charset="utf-8"
> 
> In the deep dark recesses of a mildewed storage room in the Greenville (SC)
> Downtown airport tower, my son retrieved and brought to me a long
> forgotten  vintage CAA FC141-1 1.6 to 10Mhz  fixed freq. receiver, destined
> for the dumpster. .  Actually found a manual on Nick's Navyradio site that
> covered several CAA receivers, and had this one in chapter 13.  It
> apparently uses solder in coil sets for different freq ranges, and the
> crystal freq is the Cf + 455KC.  It has a crystal in it, but the nameplate
> says 1241.875KC which puts it receiving far below the lowest coil set that
> starts at 1.6Mhz..  Unless somebody was listening a bit off freq to a BC
> station on 1242.33KC, that crystal might be a red herring.   Of course, the
> coil  set markings are not visible from the outside in this receiver, but
> in the manual, they show them clearly marked for Band 3 in this instance.
> 
> de W4MEC, Charlie in NC
> 
> [image: image.png]
> [image: image.png]
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