7623

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60/100 MHz multi-mode storage scope
Tektronix 7623A, front view

Produced from 1973 to 1992

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


The Tektronix 7623 is a 60 MHz analog multi-mode storage mainframe, introduced in 1973.
The 7623A facelift in 1975 increased bandwidth to 100 MHz. The 7623B version, specified at 100 MHz, added a reduced scan mode to increase stored writing speed (essentially it was a re-named 7633). It replaced the 7613, 7623A and 7633 in 1991. There were also R7623(A,B) rack-mount versions.

Key Specifications

     — 7623
Bandwidth tba
     — 7623A
Bandwidth 100 MHz with 7A11, 7A16, 7A19, 7A24, 7A26; 75 MHz with 7A13, 7A18
Fastest cal. sweep 5 ns/Div
Stored writing speed fast var persist - 150 Div/μs, fast bistable - 50 Div/μs, var persist - 0.5 Div/μs, bistable - 0.03 Div/μs
CRT T7410 (154-0659-00), 8 x 10 Div. @ 0.9 cm, P31 phosphor, 8.5 kV acceleration (7623A: 154-0723-00)
     — 7623B
Bandwidth tba
Stored writing speed 1000 cm/μs (in reduced-scan mode)
     — Common
Calibrator 40 mV, 400 mV or 4V into 1 MΩ, 1 kHz
Storage modes variable persistence, fast variable persistence, bistable, fast bistable, non-store
Weight 13.6 kg (30 lb)
Options * Option 01 - No Readout
  • Option 12 - Fast Writing CRT (200 cm/µs)

Internals

The 7623 uses a Transfer storage CRT which includes an internal, fast-responding storage mesh. In fast mode, the time base is inhibited after a sweep, and the transfer cycle is started. Individual sweeps therefore occur in about one-second intervals.

The vertical output amplifier is built around a 155-0080-00 hybrid in the non-A version. The 7623A vertical amplifier is a discrete design with bridged T-coils. Other custom Tek ICs used in the 7623 include 155-0011-00 clock & chop blanking, 155-0022-00 channel switch, and the 7000 series readout system chips.

Links

Prices

Year 1973 1974 1976 1980 1984 1990 1991
Model 7623 7623A 7623A 7623A 7623A 7623A 7623B
Catalog price $2,850 $3,000 $3,500 $4,295 $6,310 $8,900 $12,350
2015 value $15,070 $14,280 $14,440 $12,230 $14,260 $15,980 $21,280

Pictures