| 1 | A | B | C | D |
| --- | --- | --- | --- | --- |
| 2 | Dynaco - Dynaco tube equipment |  |  |  |
| 3 | Model | Type | Channels (Power) | Year Introduced |
| 4 | Dynaco Mark II | Power Amp | Mono (50 watts) | 1955 |
| 5 | Dynaco PAM-1 | Preamp | Mono | 1957 |
| 6 | Dynaco Mark III | Power Amp | Mono (60 watts) | 1957 |
| 7 | Dynaco Stereo 70 | Power Amp | Stereo (35 wpc) | 1959 |
| 8 | Dynaco PAS-2 | Preamp | Stereo | 1960 |
| 9 | Dynaco Mark IV | Power Amp | Mono (40 watts) | 1960 |
| 10 | Dynaco FM-1 | FM tuner | Mono | 1961 |
| 11 | Dynaco Stereo 35 | Power Amp | Stereo (17.5 wpc) | 1963 |
| 12 | Dynaco SCA-35 | Integrated Amp | Stereo (17.5 wpc) | 1964 |
| 13 | Dynaco FM-3 | FM tuner | Stereo | 1964 |
| 14 | Dynaco PAS-3X | Preamp | Stereo | 1966 |
| 15 | Dynaco Mark VI | Power Amp | Mono (120 watts) | 1976 |

Question: Which amplifiers did Dynaco release between 1963 and 1964?
Answer: A tube amplifier, the 17.5wpc Stereo 35, was introduced in 1963, and was followed the next year by the stereo SCA 35.