[TenTec] Old vs New = crunch time

[Malcolm McLeman]

----- Original Message ----- 
From: "Ronald Hands" <rhands at mountaincable.net>
To: "Discussion of Ten-Tec Equipment" <tentec at contesting.com>
Sent: Sunday, February 07, 2010 1:26 AM
Subject: Re: [TenTec] Old vs New = crunch time


> Dr. Gerald N. Johnson wrote:
>> But that relaxation oscillator has one good feature. It starts and stops
>> fast, so it doesn't hang behind fast keying. A low pass filter on the
>> speaker can help it a lot. I'll have a circuit that I did over 20 years
>> ago up on a web page in a while.
>>   
> It probably achieves the same effect as my MFJ DSP filter (I think it's 
> a model 784b), which does a terrific job of smoothing the Corsair II 
> side tone and also adds other bells and whistles such as selectivity and 
> heterodyne deletion.  I've heard others complain that their outboard DSP 
> units introduced a disconcerting amount of delay in the side tone 
> signal, but I didn't notice that effect with the MFJ, even when using a 
> keyboard.  The MFJ unit also boasts very robust audio.  That I was able 
> to buy it secondhand at a very attractive price also added to its charm.
> 
> -- Ron
> VE3SP
> 
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