From: "Gerry" 
Subject: RE: [drakelist] Low receive gain on 15 and 10


"Gerry"  made an utterence to the
drakelist gang
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Check the protective fuse lamp. Sometimes there is oxidation on the =
contact
pins. Try cleaning the pins with scotch brite. Next make sure the =
external
receiver switch on the left rear is fully engaged to the transceiver
position. Even if these two items check out OK, the TR-4 is less =
sensitive
on 15 and much less sensitive on 10. I've had a TR-4C, TR-4CW and now =
have a
TR-4CW/rit with similar characteristics. Since it's an old piece of
equipment you can't rule out a weak tube and possible misalignment due =
to
either aging or tampering.

=20

-----Original Message-----
From: owner-drakelist{at}www.zerobeat.net
[mailto:owner-drakelist{at}www.zerobeat.net] On Behalf Of n.dunham{at}att.net
Sent: Monday, January 31, 2005 7:36 AM
To: drakelist{at}www.zerobeat.net
Subject: [drakelist] Low receive gain on 15 and 10

=20

To any one that might be able to shed some light, I have just purchased =
a
TR4C over the weekend and find that 15 meters and 10 meter senitivity is
very low, great on 80, 40 and 20. Has anyone ever run into this and =
might
know what would be cuasing this problem. Other than that its a great =
rig.

Thanks

KA8MMI [Neil]


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Check
the protective fuse lamp. Sometimes there is oxidation on the contact =
pins. Try
cleaning the pins with scotch brite. Next make sure the external =
receiver
switch on the left rear is fully engaged to the transceiver position. =
Even if
these two items check out OK, the TR-4 is less sensitive on 15 and much =
less
sensitive on 10. I’ve had a TR-4C, TR-4CW and now have a =
TR-4CW/rit with
similar characteristics. Since it’s an old piece of equipment you =
can’t
rule out a weak tube and possible misalignment due to either aging or
tampering.

 

-----Original =
Message-----
From:
owner-drakelist{at}www.zerobeat.net =
[mailto:owner-drakelist{at}www.zerobeat.net] On Behalf Of
n.dunham{at}att.net
Sent: Monday, January
31, =
2005
7:36 AM
To: =
drakelist{at}www.zerobeat.net

---