07-04-2010, 07:30 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.
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.
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Ron Ramirez
Ferdinand IN
