9A1

The Tektronix 9A1 is a 24 MHz ("DC to 23Mc, not more than 3dB down at 24Mc") dual-trace amplifier for the 506.

Tektronix Type 9A1
24 MHz dual trace amplifier plug-in Tektronix 9A1 Compatible with 506 Produced from 1964 to (?) Manuals Tektronix 9A1 Manual (All manuals in PDF format unless noted otherwise)

The 9A1 uses a pair of 8233 pentodes to drive the CRT.

Early 9A1 units have UHF connectors for the inputs. Later units have BNC connectors.

Key Specifications

Bandwidth	24 MHz (-3 dB)
Rise time	14.5 ns
Deflection	10 mV/Div to 10 V/Div, 1-2-5, variable up to ×2.5 (25 V/Div) min.

Part	Part Number(s)	Class	Description	Used in
6DJ8	154-0187-00 • 154-0305-00	Vacuum Tube (Dual Triode)	dual triode	067-506 • 111 • 132 • 161 • 310A • 316 • 317 • 502 • 502A • 503 • 504 • 506 • 515 • 516 • 519 • 526 • 529 • RM529 • 533 • 535 • 536 • 543 • 544 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 556 • 561A • 561S • 564 • 565 • 567 • 581 • 581A • 585 • 585A • 661 • 1A4 • 1S1 • 60 • 2A60 • 63 • 2A63 • 67 • 2B67 • 3A1 • 3A1S • 3A2 • 3A3 • 3A6 • 3A7 • 72 • 3A72 • 75 • 3A75 • 4S2 • 51 • 3B1 • 3B1S • 3B2 • 3B3 • 3B4 • 3M1 • 3S76 • 3T77 • 3T77A • 9A1 • 9A2 • 1121 • 80 • 81 • 82 • 86 • B • O • W • Z • Telequipment D56 • Telequipment S32A • Telequipment D52 • S-311 • Telequipment TD51 • Telequipment S52 • Telequipment S51 • Telequipment Type A • TU-4
7586	154-0306-00	Vacuum Tube (Triode)	Nuvistor triode	M • 1A1 • 1A2 • 1A5 • 10A2 • 10A2A • 11B1 • 11B2A • 321 • 321A • 3A1 • 3A1S • 3A3 • 3A5 • 3A6 • 3A7 • 3A8 • 3A74 • 3S76 • 3T77 • 3T77A • 3B5 • 4S1 • 4S2 • 6R1 • 6R1A • 9A1 • 9A2 • 82 • 86 • S-311
8233	154-0361-00	Vacuum Tube (Pentode)	special quality 10 watt pentode	3A1 • 3A1S • 3A5 • 3A6 • 9A1 • 9A2