[Boatanchors] B&W TR Switch 381C
David C. Hallam
dhallam at knology.net
Thu Aug 14 13:48:59 EDT 2014
I didn't not try that. I suppose that I should.
I have an Invader 2000 and am trying to get the simplest circuit
possible to be able to switch between the dual outputs of 200 and 2000.
Replacing the Dow Key relay with an electronic TR switch would make
things easier.
On 8/14/2014 12:22 PM, Ron Youvan wrote:
> Hi David KW4DH C. Hallame:
>
>> I have a B&W 381C TR switch that has been sitting on the shelf after I
>> purchased it at a ham fest several years ago. I tried it out for the
>> first time today on 20M with my 73S-3 receiver. The noise level at my
>> QTH was running about S-3. When I put the TR switch in the line and
>> peaked its tuning, the noise was about S-7 or 8. Is this normal or does
>> it indicate a problem with the TR switch?
>
> What does the TR switch do to incoming signals, such as the WWV
> beacons?
--
"I predict future happiness for Americans if they can prevent the government from wasting the labors of the people under the pretense of taking care of them."
Thomas Jefferson
---
This email is free from viruses and malware because avast! Antivirus protection is active.
http://www.avast.com
More information about the Boatanchors
mailing list