All opinions are "warped" (except mine). Put the boxes where they
work for you! I want my PS somewhere where I can see the pilot light
and switch it on and off. And I use it as a tiny bulletin board for
posting misc. operating information. See it in full glory:
http://www.flickr.com/photos/martin_ewing/4136816204/ . (Extra points
for finding mistakes.)
73 Martin AA6E
On Thu, Nov 26, 2009 at 1:13 PM, Dr. Gerald N. Johnson
<geraldj@weather.net> wrote:
> On Thu, 2009-11-26 at 07:38 -0600, Lyle Dunlap wrote:
>> I always thought a power supply sitting beside a transceiver analogous to
>> a car battery in the passenger seat. Only my humble opinion of course
>
> Only a warped opinion. Since many a power supply has included the
> speaker (at least since Collins introduced the 516F-2 in about 1959 with
> speaker in the power supply cabinet) its been appropriate for power
> supplies to be adjacent to the radio. Having the speaker anywhere else
> makes less sense.
>
> And as a practical matter whether feeding 15 amps of 6.3 volts to a
> gaggle of tubes or 20 amps DC at 13 volts to a solid state PA, keeping
> the power supply leads short often makes the radio run better. Voltage
> drop in the DC supply causes reduced power output and increased PA
> distortion and that can come from tube heaters running cooler than they
> were designed for. Many a modern radio has excessive voltage drop with
> the factory power cable.
>
> It appears the problem with some Tentecs is only when the power supply
> is adjacent to the audio stages of the transceiver or to a poorly
> shielded dynamic microphone. I might say the audio stages if sensitive
> to the power supply's magnetic field are also poorly shielded. The
> magnetic fields from many a CRT are greater than from many a power
> supply.
>>
>> Happy tks gvng ev1
>> W9FCX
>>
> 73, Jerry, K0CQ
>
> _______________________________________________
> TenTec mailing list
> TenTec@contesting.com
> http://lists.contesting.com/mailman/listinfo/tentec
>
--
Dr. Martin S. Ewing, AA6E
Member IEEE, URSI, AAS, ARRL
Branford, Connecticut
_______________________________________________
TenTec mailing list
TenTec@contesting.com
http://lists.contesting.com/mailman/listinfo/tentec
|