02-20-2020, 10:58 PM
" . . . look see if any are from the time frame of 1939-1940."
Of the 3 metal, 12-volt tubes, the Raytheon 12SA7 appears to have what might be a date code - the numbers 280 and 617 stamped on the body. If it is, I'm not sure how to read it.
The Ken-Rad 12SQ7 has the number 62 stamped on the base. Would that be for 1962? But we know this radio is older than that.
The Tung-Sol 35Z5GT has the number 12 stamped on it's base.
. . . and the GE 50L6GT has 3-09 and 188-5 stamped on it's base. Could that be the ninth week of 1943?
Thanks David.
Of the 3 metal, 12-volt tubes, the Raytheon 12SA7 appears to have what might be a date code - the numbers 280 and 617 stamped on the body. If it is, I'm not sure how to read it.
The Ken-Rad 12SQ7 has the number 62 stamped on the base. Would that be for 1962? But we know this radio is older than that.
The Tung-Sol 35Z5GT has the number 12 stamped on it's base.
. . . and the GE 50L6GT has 3-09 and 188-5 stamped on it's base. Could that be the ninth week of 1943?
Thanks David.
