The Time Machine 609 and the digital flanger 603 (about 1975) were one of the first BBD units which was produced as a effect box.
The Time Machine was build round 3 TDA1022.
 
At the same time the digital flanger 603 came out. It has the same board as the 609 but with only 1 TDA1022.
It has an extra pcb board for the LFO.
| 