[ARC5] A-61-A phantom antenna question...

[Michael Hanz]

Like most of the dummy loads in WWII, this resistive load is designed to 
be relatively independent of frequency.  It is simply nichrome wire 
wound on asbestos forms with a layer of mica riveted on top of the 
asbestos before winding.  The A-61-A is rated at 50 watts, so that gives 
you a good target.  Photo below.

-Mike  KC4TOS



On 8/23/2023 12:10 PM, Michael Hanz wrote:
>
> Aircraft Radio Corp Part 8046 fixed vacuum capacitor
>
> Rated Capacitance 100 pF
>
> Peak Voltage 5 KV
>
> Current Amps (RMS) Maximum 5 Amps
>
>
> I'll take a look at the resistor later today.
>
>
> Mike  KC4TOS
>
>
>
> On 8/23/2023 11:45 AM, Craig Cantwell via ARC5 wrote:
>> I haven't had any luck find one of these over the couple of years 
>> I've been searching. I was wondering if anyone has one in their 
>> collection and if so, would you be willing to look at the internals 
>> and see if you can see the ratings on the capacitor and the resistor 
>> within the unit? The schematic shows it to be a 100pF cap and a 5 ohm 
>> resistor, but no other rating info. I figure that a 2kV cap rating 
>> and 100 watts on the resistor would be plenty, but want to be sure on 
>> the cap. I hate having things go bang on the bench that are not meant 
>> to do so.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20230823/646da43b/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: A-61-A phantom antenna interior.jpg
Type: image/jpeg
Size: 301274 bytes
Desc: not available
URL: <http://mailman.qth.net/pipermail/arc5/attachments/20230823/646da43b/attachment-0001.jpg>