[Heathkit] Two Tone Function and AM Re: SB-610 Scope

[Robert & Linda McGraw (K4TAX)]

I have both the HO-10 and a SB-610.  The HO-10 is used with the AM station 
and the SB-610 for the SSB station.  Other than a few resistors increasing 
in value due to age and the needed replacement of the 0.15 mf HV filter 
caps, these seem to work flawless.

As to AM transmitter evaluation, a very low distortion osc and one that is 
sweepable across the audio spectrum is preferable.  At the same time, the RF 
TRAP mode pattern is easier for most to analyze AM transmitter performance.

These are real handy pieces of station equipment.  I wish more folks had 
them, used them and understood the result they present.  The bands would be 
cleaner and transmitters would sound better although many would complain 
that their watt meters didn't kick as high. Sigh!

73
Bob, K4TAX


----- Original Message ----- 
From: "Jim Shorney" <jshorney at inebraska.com>
To: "heathkitmailmanqthnet" <heathkit at mailman.qth.net>
Sent: Sunday, April 15, 2007 11:05 PM
Subject: Re: [Heathkit] Two Tone Function and AM Re: SB-610 Scope


> On Sun, 15 Apr 2007 23:39:03 -0400, RJ Mattson wrote:
>
>>The manual specifically says the two tone function is useful for SSB.
>>How about AM ?
>
> Single tone is more useful for AM, but the 610 will do that as well.  At
> least, most of them will - I've had two 610s, and the two-tone circuit 
> didn't
> work in both of them...