504

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Tektronix 504
450 kHz scope
Tektronix 504

Produced from 1960 to 1973

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 504 is a monolithic oscilloscope with a bandwidth of 450 kHz introduced in 1960.

It was introduced at the same time as the 503, and is mechanically and electrically identical, other than the vertical amplifier.

The 504 was also offered in a rack mount version, the RM504.

Specifications

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Internals

The 503 incorporates two identical phase matched amplifiers with true differential inputs to support X-Y operation, whereas the 504 contains a simple ground referenced vertical amplifier. Due to the low bandwidth and need to keep the selling price low, neither the 503 or 504 include delay lines in the vertical signal path. Both scopes use the same CRTs, the T5030.

The CRT circuit uses a single 5642 to generate the -3000 V cathode voltage. There is no post-deflection acceleration.

Triggering is done using a multivibrator made of a 6DJ8 tube. The vertical signal path has a 6DJ8 first stage, a BJT second stage, followed by the output stage. The vertical and horizontal output stages use pairs of 6CB6 tubes.

Pictures


Some Parts used in the 504

Page Class Description Used in
5642 Vacuum Tube (Diode) directly-heated high-voltage rectifier 360 453 504 506 513 515 516 533 533A 535 543 543A 543B 545 545A 545B 547 551 555 567 575 647
6DJ8 Vacuum Tube (Double Triode) dual triode 502 503 504 515 516 519 533 535 543 544 545 546 547 549 555 556 565 581 581A 585 585A 661 2A60 2A63 3A8 1121 1A4 67 81 82 86 3B1 3B4 O Telequipment S32A Telequipment D52 Telequipment S52 Telequipment S51 Telequipment Type A
T5030 CRT CRT 503 504 560 561 661