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  #27  
Old 08-01-2012, 07:07 PM
dieseljeep dieseljeep is offline
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Join Date: Jul 2010
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Quote:
Originally Posted by bandersen View Post
There are only resistors on the switch. It has a cascode tuner using a 4BQ7.
I found a 4BZ7 installed (which is a valid substitute) and have since replaced it with a 4BQ7. I didn't notice any difference.

[img]
005 by bandersen, on Flickr[/img]
After looking at the rear pictures in entry #2, I see the isolation network, is right next to the tube neck.
I had almost the same problem with the vertical size changing, as the set warms up. After years, I wonder if the problem was the thermistor on the yoke.
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