Note
QST, Jan 1950, p. 88.
QST, Apr 1950, p. 115. (TR-75TV)
Good photo: QST, Oct 1951, p. 81.
Allied Radio catalog 1952 (copyright 1951), p. 139.
Good photo: QST, Feb 1952, p. 72.
QST, Jul 1952, p. 103. ("More effective TVI protection.")
Allied Radio catalog 1953 (copyright 1952), p. 40.
Walter Ashe catalog 1954, p. 12.
Allied Radio catalog 1955 (copyright 1954), p. 193.
Allied Radio catalog 1956 (copyright 1955), p. 201.
Eldico introduced the TR-75, a 6L6/807 CW transmitter kit. The following year, the Long Island, New York company added onboard filtering, improved the shielding, and changed the tube lineup to a 6AG7 driving a 1625. In April 1950, a version of the TR-75 was offered that included a low pass filter and a metal cover over the entire transmitter for TVI protection, which added $10 to the cost. This was called the TR-75TV. The standard version was also still available. It had a pi-net output and covered 80 through 10 meters.
