[ARC5] 1ST QSO with my BC-454-B and T-19

[Mark K3MSB]

The jacks and relay were there all the time.

I added a ground from the PL-259 shield to the T-19 chassis, which was
attached to the PS ground by the big interconnect cable.   Now, antenna,
PS, and radios share a common ground.

Someone on this list did in fact ask me if the PS and radio was grounded
together, which they were.  But the coax shield didn't share that ground.
This should have been obvious to me, but sometimes I miss the obvious.....

Mark

On Mon, Dec 31, 2012 at 9:54 AM, Mike Hanz <aaf-radio-1 at aafradio.org> wrote:

> Very nice, Mark - a clean implementation, to be sure.  But I'm still a
> little fuzzy on how your matching mystery was solved.  Was it cured by
> providing a solid ground, or did magic just happen when you added the jacks
> and relay?
>
> Or shouldn't I ask...heh, heh... :-)
>
> Happy New Year,
>  - Mike
>
>
> On 12/31/2012 9:30 AM, Mark K3MSB wrote:
>
>> Hi Mike --
>>
>> Take a look at the PS.  It's composed of the commercial 28V 15A supply
>> atop
>> the main chassis, and the big HB chassis for B+, screen, and OSC voltages.
>>
>> On the very right of the HB chassis are 3 jacks,  ANT, TX and RX;  the ANT
>> is the top jack which feeds the 200pf  capacitor.  The jacks go to an
>> internal 28V DPST relay.   The relay is activated by the toggle switch on
>> the front panel.
>>
>> The DPST relay controls the 200V OSC voltage as well as antenna switching.
>> I wasn't too sure how this was going to work (RF so close to the OSC), but
>> it seems to work OK.
>>
>> I have a T-22 and a BC-455-B sitting on the shelf which I plan on starting
>> in January.
>>
>> Ultimately, I plan to house the antenna switching relay in a separate box
>> with a switch for 80/40 meters that will select the 2 series capacitors,
>> and also house the 4:1 UNUN.
>>
>> 73 Mark K3MSB
>>
>>
>> On Mon, Dec 31, 2012 at 8:14 AM, Mike Hanz <aaf-radio-1 at aafradio.org>
>> wrote:
>>
>>>   ----- Original Message ----- From: "Mark K3MSB" <mark.k3msb at gmail.com>
>>>
>>>  It works!!!!
>>>>> http://www.k3msb.com/arc5/****K3MSB_BC454B_T19.jpg<http://www.k3msb.com/arc5/**K3MSB_BC454B_T19.jpg>
>>>>> <http://**www.k3msb.com/arc5/K3MSB_**BC454B_T19.jpg<http://www.k3msb.com/arc5/K3MSB_BC454B_T19.jpg>
>>>>> >
>>>>>
>>>> On 12/31/2012 8:01 AM, David Stinson wrote:
>>>> A thing of beauty, indeed ;-)
>>>>
>>> Agreed!  How'd you solve the antenna matching problem, Mark?
>>>
>>>   - KC4TOS
>>>
>>
>
>
>