[Premium-Rx] Watkins Johnson WJ-8716 Battery

[Bob Betts]

"John Hafele" jhafele at optonline.net



 

<snip>
Success ----- maybe !
Talk about a can of worms. I pulled every card one by one and found a
location for the battery (BT1)
on the Synthesizer Interface Card ( 794275-1 ). No battery installed, of
course but there is hope.

 
 
John,
sorry I didn't see your post until now. I've recently worked on four different variants of the 87xx family. Just a thought, but I refuse to replace the NiCad batteries with new NiCads. Maybe the purists won't agree with homebrewed modifications, but, well, that's me. Anyhow, I use NiMH batteries whenever I do that kind of repair -- W-J, Racal, and whoever else need a fresh RAM battery. If you are a member of the Yahoo Group for W-J radios, you can see how I tackled the "off-board" installation of the battery. I spent a good part of a recent Saturday afternoon repairing a PC Bd that a leaky NiCad began eating. In a few of the cases, the copper traces, in the battery's vicinity, were completely gone due to the chemical etching of the leak.
Here's the link below. It's just a suggestion, but maybe worthy of a look.
Enjoy the radio -- remember, regardless of their age, they were the top of the heap at one time, and still can run circles around much of the (so called) modern stuff.
'73,
Bob, N1KPR
http://groups.yahoo.com/group/Watkins-Johnson/photos/album/445909520/pic/list


http://www.bobsamerica.com
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