[Boatanchors] Drake TR-7 Xmit Question

[Greg]

Are the power supply connections nice and tight?
One of the bugs with the aged TR-7 is the interconnect cable system.  If 
your power supply is working ok, I think I would open her up and 
clean/re-seat those top side board connectors.
73's
Greg
WA7LYO
Kinston NC
----- Original Message ----- 
From: <w0ng at comcast.net>
To: <boatanchors at mailman.qth.net>
Sent: Friday, November 23, 2007 1:04 PM
Subject: [Boatanchors] Drake TR-7 Xmit Question


> I'd appreciate some help identifying the cause of an all-of-a-sudden 
> problem with my Drake TR-7 (serial 66xx). The rig was, up until this 
> morning, working fine...no issues.
>
> Now when I key the transmitter there is no measurable rf output 
> (regardless of mode selected or setting of carrier control) and the 
> digital display immediately counts upward to around 17+Mhz or 33Mhz 
> depending on what band is selected. Un key the xmtr and receive is still 
> fine.
>
> Front panel controls are set correctly. Using a dummy load instead of an 
> antenna made no difference. I also noticed the meter backlight flickering 
> when I try to insert a bit of carrier upon key-up. (???)
>
> Before I take it out of the case and start looking, does anyone have a 
> suggestion as to why it started doing this? I don't have a lot of digital 
> experience. Still stuck in an analog/tube world, hi. Thanks a lot. Bill, 
> w0ng
> _______________________________________________
> Boatanchors mailing list
> Boatanchors at mailman.qth.net
> http://mailman.qth.net/mailman/listinfo/boatanchors
> ** List Administrator - Duane Fischer, W8DBF/W9WZE **
> ** For Assistance: dfischer at usol.com **
> $ For vintage radio info, see the HCI web site $
> http://www.w9wze.net
>