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It takes a [[Letter-series_and_1-series_plug-ins|letter-series or 1-series vertical plug-in]]. | It takes a [[Letter-series_and_1-series_plug-ins|letter-series or 1-series vertical plug-in]]. | ||
The 549 was [[introduced in | The 549 was [[introduced in 1965]] and discontinued after 1973. | ||
The 549 vertical output stage was designed by [[Mel Holznagel]]. [[Bob Shand]] did the mechanical design. | The 549 vertical output stage was designed by [[Mel Holznagel]]. [[Bob Shand]] did the mechanical design. | ||
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549_Delayed_Trace.jpg | B INTEN BY A Trig in 549 | 549_Delayed_Trace.jpg | B INTEN BY A Trig in 549 | ||
549_Dual_Trace.jpg | Dual trace display in 549 | 549_Dual_Trace.jpg | Dual trace display in 549 | ||
Tek 549-1 knob layout.jpg|549 knob layout | Tek 549-1 knob layout.jpg | 549 knob layout | ||
Tek 549 - Electronics 1965-08-23.jpg | 549 ad in Electronics 1965-08-23 | |||
</gallery> | </gallery> | ||