02-17-2018, 04:31 PM
Yep, an 87 has 8 tubes; a 76, 7 tubes.
Unfortunately Willie's photos are small so they cannot be super-sized, but after careful analysis I believe his radio is an 87. The RF amp tubes do not appear to have grid caps on top and if this is so, then they must be 26 tubes and not 24/24A. Thus, if it uses 26 tubes, it must be an 87.
As I recall, early production model 87 chassis did use a toggle switch for off-on instead of a knob; this was later changed to a rotary switch. This could possibly explain the toggle switch (another explanation would be an incorrect replacement for an original rotary switch). Oh, and that is an off-on switch, whether toggle or rotary.
Equal or superior in performance? Hard to say. Theoretically the 76 should be better with tetrode RF amplifiers. But as I mentioned in my previous post, the 87 is a surprisingly good performer when properly restored. Very sensitive.
Unfortunately Willie's photos are small so they cannot be super-sized, but after careful analysis I believe his radio is an 87. The RF amp tubes do not appear to have grid caps on top and if this is so, then they must be 26 tubes and not 24/24A. Thus, if it uses 26 tubes, it must be an 87.
As I recall, early production model 87 chassis did use a toggle switch for off-on instead of a knob; this was later changed to a rotary switch. This could possibly explain the toggle switch (another explanation would be an incorrect replacement for an original rotary switch). Oh, and that is an off-on switch, whether toggle or rotary.
Equal or superior in performance? Hard to say. Theoretically the 76 should be better with tetrode RF amplifiers. But as I mentioned in my previous post, the 87 is a surprisingly good performer when properly restored. Very sensitive.
--
Ron Ramirez
Ferdinand IN
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