Quantity   Component name
11 × Relay RPY-1 USSR 6C relay
11 × Relay RN-54 USSR voltage relay 1A 1B
1 × Relay VS-10-64 USSR Time relay, 6 channel
1 × Relay VS-10-34 USSR Time relay, 3 channel
1 × RF-8300 Power supply Power supply from photorelay RF-8300
1 × Wood panel from piano From very old soviet non-worked piano