The Pennocks Of Primitive Hall George Valentine Massey II Chester County Historical Society 1951 Admiral Philco This Silvertone Type 235 /

This Silvertone Type 235 / 35 tube was tested on our Paul Hart-calibrated TV7/U for shorts

5 to eight out of ten

34 and 38 where minimum (65%) is and 100% is

Its filaments are spirally-wound -- hence the "S" in "ECC83S" -- for low noise operation

new in box GE 6MV8 tube tested to spec on our Paul Hart-calibrated TV7/U

The Pennocks Of Primitive Hall George Valentine Massey II Chester County Historical Society 1951 Admiral Philco This Silvertone Type 235 /This hardcover book is in very good condition and comes from a non smoking household. The spine is in fine shape with no loose pages. There is no dust jacket and I suspect there never was.