Due to the time and space involved, I have decide not to convert this beautiful transmitter. It is an original owner unit built by Collins in 1869 in 1969. All original documentation from the factory and installation is included. Very large 8 1/2 X 11 notebook with all pages in plastic protectors.
The Collins 820D-1 uses a pair of 5-500's modulated by a pair of the same. The transmitter is solid state up to the final and modulators. Most users converted the transmitter to use 4-400's by simply changing the filament transformers. I have the new transformer designed for this transmitter. The transmitter comes with a remote control panel for operation from the operators position. The transmitter is designed to be placed flush against a wall. Everything is serviced from the front. It is 23 inches deep, 41 inches wide and 69 inches tall. Complete manual with very large extra schmatics. A spare audio driver card and extra exciter unit is included. All iron is original and has been removed and taged for easy handling. The transmitter is located near Tallahassee, Fl just off I-10. The transmitter can be moved in a standard size pickup. Help will be provided for loading. The transmitter can be delivered within a 200-300 mile area. Priced at $1200.00 and I will consider a trade or partial trade. Thanks es 73, Bob, W4WSZ AM'ing over 50 years AMI SAMRC #12
