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Model 90 Tube Shield
Ron Ramirez
Silent Key
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Posts: 13,776
Threads: 580
Joined: Sep 2005
City: Ferdinand State, Province, Country: Indiana
#2

07-04-2010, 08:30 AM
Hi Allen

Sorry for not replying sooner.

The large tube shields for the early (2-45) and mid (1-47) are interchangeable; the shield for the late version (2-47) is different and is not interchangeable with the early and mid versions - but the third version shield is interchangeable with Model 91.

Yes, the flat metal in the mid version is another tube shield; it serves mainly to protect the two 27 tubes in the audio circuit from interfering with one another, I believe. In early versions of the "mid" chassis, there was a single round shield over the 27 tube that is next to the 47 output tube. This was later changed to the flat shield which is missing in your set.
--
Ron Ramirez
Ferdinand IN
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Messages In This Thread
Model 90 Tube Shield - by Allen in SB - 06-25-2010, 11:16 PM
Re: Model 90 Tube Shield - by Ron Ramirez - 07-04-2010, 08:30 AM
Re: Model 90 Tube Shield - by Allen in SB - 07-06-2010, 11:31 PM



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