[Boatanchors] Boatanchors Digest, Vol 98, Issue 36

[Geoff]

I suspect that is correct as I remember the short tour thru their little 
plant at the Beverly Airport (MA) when I picked mine up probably in 66. 
Tolerance in the inductors was anything but precise and mine made a return 
trip twice for alignment. The owner had been an engineer at National.
Interestingly enough they are still in business and Ted Johnson is still in 
charge.

Carl
KM1H



----- Original Message ----- 
From: "Monty N5ESE" <n5ese at prismnet.com>
To: <boatanchors at mailman.qth.net>; "David C. Hallam" <dhallam at knology.net>
Sent: Monday, March 26, 2012 9:52 PM
Subject: Re: [Boatanchors] Boatanchors Digest, Vol 98, Issue 36


> David:
>
> According to a QST Product Review in March 1967, the LO is at 16
> KHz.  I suspect that can get tweaked up or down a smidgeon to get the
> lumped LC Bandpass filter centered.
>
> 73,
> monty  N5ESE
> http://www.dit-dididit-dit.com
>
>
> At 07:44 AM 3/26/2012, boatanchors-request at mailman.qth.net wrote:
>>Date: Mon, 26 Mar 2012 07:15:52 -0400
>>From: "David C. Hallam" <dhallam at knology.net>
>>Subject: [Boatanchors] Comdel CPS-11 Speech Processor
>>To: Boatanchors-qth <boatanchors at mailman.qth.net>
>>
>>Does anyone know about the Comdel CSP 11 speech processor?  I am trying
>>to troubleshoot a recalcitrant one.  What is the carrier frequency? I am
>>measuring 17.4 KHz and don't know if that is right or wrong.  The manual
>>isn't much help.  Other how to hook it up and a schematic, there isn't
>>much in it.
>>
>>I keep thinking that years ago I read something about the Comdel saying
>>it used 85 KHZ as the carrier.  So far Google searches haven't turned up
>>anything.
>>
>>David
>>KW4DH
>
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