 |
 |
|
|
 |
 equivalent
valves... |
|
below is a list of equivalent valves for use in vintage Quad hifi, that offer very little or no reduction in performance and will not damage the equipment itself:
| KT66 | ~ | CV321 | CV1075 | 5881 | 6L6WGC | 7581 | CV586 | EL37 | ||
| GZ32 | ~ | 54KU | 5V4G | 5AR4 | CV378 | CV593 | GZ34 | |||
| EF86 | ~ | Z729 | 6267 | 6BK8 | 6272 | CV2901 | 6F22 | 6CF8 | ||
| ECC83 | ~ | 12AX7 | 6L13 | 5751 | 6057 | 6681 | 7025 | B339 | CV492 | CV4004 |
| 6BJ6 | ~ | CV3909 | 6BJ6A | |||||||
| 6AU6 | ~ | EF94 | 6AU6A | EF96 | CV2524 | |||||
| 6BH6 | ~ | CV3908 | E90F | 6265 | 7693 | |||||
| 6AL5 | ~ | 6D2 | CV4025 | D77 | EAA91 | EB91 | CV283 | 6EB5 | CV8200 | |
| 12AT7 | ~ | 12AZ7 | 6679 | B152 | B309 | CV4024 | ECC81 | CV455 | 12AT7A | |
| EM84 | ~ | 6FG6 | CV5434 | EM840 | ||||||
| EBF89 | ~ | 6DC8 | 6FD12 | |||||||
| EF89 | ~ | 6DG7 | CV5156 | 6DA6 | ||||||
| ECH81 | ~ | 6AJ8 | 6C12 | CV2128 | X719 |