[Amps] 120 Hz hum from Henry...

[Hardy Landskov]

I really kind of miss those days. You could always tell the Russians and the 
satellite countries with the raspy cw. And then there were the clean cw 
signals but would drift in frequency. You did not know what frequency to 
answer them on. And the VK & Zl stations would turn on their oscillilators 
and just key their amplifiers so you would hear a very low level signal at 
first then a stronger signal as he keyed the final.
At age 15 I had the time of my life. It was the beginning of my career and I 
hope it was the start of many other peoples career also.
Ok end of dialog but it was fun................
73 N7RT


From: "Carl" <km1h at jeremy.mv.com>
To: <dezrat1242 at yahoo.com>; <amps at contesting.com>
Sent: Sunday, February 21, 2010 7:34 PM
Subject: Re: [Amps] 120 Hz hum from Henry...


>
> ----- Original Message ----- 
> From: "Bill, W6WRT" <dezrat1242 at yahoo.com>
> To: <amps at contesting.com>
> Sent: Sunday, February 21, 2010 9:07 PM
> Subject: Re: [Amps] 120 Hz hum from Henry...
>
>
>> ORIGINAL MESSAGE:
>>
>> On Sun, 21 Feb 2010 14:40:05 -0500, "Carl" <km1h at jeremy.mv.com> wrote:
>>
>>>I guess you are unfamiliar with almost all commercial ham amps.
>>>
>>>Read a few schematics.
>>
>> REPLY:
>>
>> The ones I am most familiar with are Alpha and Command. The smallest
>> filter I have seen there is 35 uF and most are in the 50's.
>>
>> You state you have a 24 uF filter and are complaining about poor
>> regulation. Duh!
>>
>> 73, Bill W6WRT
>
> Uhh....Im not complaining about the LK-500 regulation, simply stating a
> fact.
>
> Now if you want to look at the classic Alphas of the 7 series, Ameritron,
> Ten Tec, Heath, Dentron, Drake, Swan, etc, etc, you will find them in the
> 17-33uF range....duh.
>
> The latest series of some amps have more C as a result of capacitor
> technology, not engineering brilliance.
>
> Going back further to the 1963 NCL-2000 it is 10uF AS PER THE RCA specs 
> for
> the 8122's. Static regulation at 0 to 2000W is 16%. Dynamic is much better
> for SSB.
>
> Carl
>
>
>
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