7934

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Tektronix 7934
500 MHz multi-mode storage mainframe
Tektronix 7934

Produced from 1987 to 1990

Manuals

Alternate Copies

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix 7934 is a 500 MHz transfer storage CRT multi-mode mainframe that accepts two 7000-series vertical plug-ins and two 7000-series horizontal plug-ins.

It is the fastest analog storage oscilloscope ever built with 500 MHz of bandwidth, surpassing the 400 MHz 7834.

Key Specifications

Bandwidth 500 MHz with 7A19, 7A29
Rise time 0.8 ns with 7A19, 0.7 ns with 7A29
Fastest cal. sweep 0.5 ns/Div
Storage modes bistable, variable persistence, fast bistable, fast variable persistence
Scan modes normal scan, reduced-scan mode for increased writing speed
Stored writing speed
Mode Reduced Scan Full Scan
fast var persist 8800 Div/μs 300 Div/μs
fast bistable 776 Div/μs 50 Div/μs
var persist 12 Div/μs 2 Div/μs
bistable 0.2 Div/μs 0.03 Div/μs
Storage time >30 s in variable persistence modes, >30 minutes in bistable modes (typically hours)
CRT 8×10 Div @ 0.9 cm/Div, 154-0780-01 with P31 phosphor, 10 kV acceleration (12 kV in reduced scan modes)
Calibrator 40 mV/400 mV/4 V into >100 kΩ; 4 mV/40 mV/400 mV into 50 Ω; 1 kHz
Power 90-132 V or 180-250 V, 230 W
Weight 17.2 kg (38 lb)

Internals

The 7934 makes extensive use of custom integrated circuits and hybrid circuits. With the exception of the on-screen readout circuit, the signal path is completely differential and all of the internal wiring is 50 Ω coax.

Connectors on the rear of the mainframe provide a sample of either the A or B compartment's output as well as either compartment's internal trigger signal. Only one connector is available for each function, and the compartment is selected by jumpers on a circuit board near the rear of the case.

Dennis Tillman wrote:

The 7934 is an uncommon scope because it came out late in the 7000 lifecycle (1987). For some odd reason it was not listed in the 1988 catalog but it reappeared in the 1989 and 1990 catalogs. In most respects it is a higher bandwidth 7834 which was discontinued after 1985. The 7834 was a 400 MHz scope, but the 7934 is the fastest analog storage scope Tek made at 500 MHz.

Prices

  Year 1987 1990
Mainframe only Catalog price $13,365 $15,100
In 2023 Dollars $35,800 $35,100
Mainframe with 2 × 7A19,
7B85, 7B80
Catalog price $22,755 $26,260
In 2023 Dollars $60,900 $61,100

Links

Pictures

Schematics

Components

Some Parts Used in the 7934

Part Part Number(s) Class Description Used in
154-0780-01 154-0780-01 CRT transfer storage CRT 7934
155-0009-00 155-0009-00 Monolithic integrated circuit horizontal lockout logic 7504 7514 7704 7704A R7704 7834 7844 7854 7904 R7903 7904A 7934 7104
155-0010-00 155-0010-00 Monolithic integrated circuit chop divider and blanking 7504 7514 7704 R7704 7704A 7834 7854 7904 R7903 7904A 7934 7104
155-0011-00 155-0011-00 Monolithic integrated circuit clock and chop blanking 485 7313 7403N R7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 7904 7904A R7903 R7912 7912AD 7912HB 7934 7104 R7103 AN/USM-281C
155-0012-00 155-0012-00 Monolithic integrated circuit Z Axis Logic 485 7504 7514 7704 R7704 7704A 7834 7844 7854 7904 R7903 7904A R7912 7934 7912AD 7912HB 7104 R7103
155-0013-00 155-0013-00 155-0013-01 Monolithic integrated circuit horizontal chop and alt. binary 7504 7514 7704 R7704 7704A 7834 7854 7904 7904A R7903 7934 7104
155-0014-01 155-0014-00 155-0014-01 Monolithic integrated circuit analog-to-decimal converter 7000 series readout system 7854 7934 7J20 7L5 P7001
155-0015-01 155-0015-00 155-0015-01 Monolithic integrated circuit analog data switch 7000 series readout system 7854 7934
155-0017-00 155-0017-00 Monolithic integrated circuit 5 MHz decade counter 7000 series readout system 7854 7934
155-0018-00 155-0018-00 Monolithic integrated circuit zeros logic control 7000 series readout system 7934
155-0021-00 155-0021-00 155-0021-01 Monolithic integrated circuit timing generator 7000 series readout system 7854 7934
155-0022-00 155-0022-00 155-0022-01 Monolithic integrated circuit analog multiplexer 147 148 149 335 468 1430 1441 1461 1900 1910 2220 2221 2230 5223 5403 5440 5441 5443 5444 5A38 7313 7403N 7503 7504 7514 7603 AN/USM-281C 7613 7623 7623A 7633 7704 R7704 7704A 7834 7844 7854 R7912 7912AD 7912HB 7904 R7903 7904A 7934 7A12 7A18 7A18A 7A18N 7B52 7B53N 7D10 7D11 7D12 NT-7000 P7001
155-0067-02 155-0067-00 155-0067-02 155-0067-03 Monolithic integrated circuit SMPS controller 7704A 7834 7844 7854 7904 R7903 7904 7904A 7934 R7912 7912AD 7912HB 7934 7104 R7103 308 434 485 690 P7001
155-0173-00 155-0173-00 155-0173-05 Hybrid integrated circuit vertical channel switch 7104 R7103 7904A 7934 EG&G N-AM-173A
155-0175-00 155-0175-00 155-0175-05 Monolithic integrated circuit broadband amplifier 7904A 7912HB 7934 7104 R7103 7A29 7A29P 7F10 067-0587-02 067-0587-10 11A71 SCD1000 EG&G N-AM-173A
155-0178-00 155-0178-00 155-0178-05 Hybrid integrated circuit horizontal output amplifier 7904A 7912HB 7934 7104