The SR-209C seems to be the latest version of the SR-209.
This model has been manufactured in UK probably for the European defence market while my other unit was made in the USA by Norlin.
It includes two slots for tuner units with the left one been able to accept a display unit. It allows adding up to three IF strips.
The related tuner head series is displayed here.
|300kHz IF strip|
|060kHz IF strip|
|020kHz IF strip|
|Power supply strips|
Last revision: 2015/03/05