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Tektronix 2230
100 MHz portable DSO
2230 front

Produced from 1986 to 1989



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

The Tektronix 2230 is a portable 100 MHz, dual-channel combination analog / digital storage scope, sister model of 2220 and 2221.

It has both an analog mode and a digital mode. In the digital storage mode, up to three waveform sets (CH 1 and/or CH 2) may be stored in a save ref. memory and recalled for display at a later time.

The 2230 features alphanumeric CRT readout of many of the front panel controls. A DB-9 auxiliary connector on the right side provides an external clock input as well as an analog X-Y plotter output to make permanent copies of the display. This feature can be accessed through the "Mem select" menu.

Some firmware versions have a diagnostics menu with the Tektronix logo and wizard image.

The Cursor knob is prone to failure. It becomes jittery and will not scroll properly.

Options include RS-232 and GPIB interface boards, which include a 32K (26K available) battery backed memory daughter board (the same options for the 2220 and 2221 do not include the memory).

Recommended cart is the K212.


     — Vertical
Input impedance 1 MΩ // 20 pF
Maximum Safe Input Voltage 400 V (dc + peak AC) or 800 Vp-p AC
CMRR At least 10:1 at 10 MHz
     — Horizontal
Timebase A 50 ns/Div to 0.5 s/Div, 1-2-5, x10 magnifier, i.e. down to 5 ns/Div. In "Store" mode lower sweep speeds up to 5 s/Div are available
Timebase B 50 ns/Div to 5 s/Div, 1-2-5, x10 magnifier, i.e. down to 5 ns/Div
Bandwidth 100 MHz (analog)
Sampling rate 20 MS/s
Record length 1K or 4K samples (single channel), optional 26K
Z axis input (intensity); DC to 20 MHz, maximum safe input 30V (dc + peak ac) Input resistance about 10kΩ
CRT display area : 8 × 10 cm²
Dimensions With feet and handle: 137 x 361 x 511 mm³
  • X-Y operation
  • Pre/Post-triggering
  • Averaging
  • Dual time base
  • Cursors and readout
  • GPIB and Memory (option 10)
  • RS-232 interface and Memory (option 12)



The 2230 is controlled by an Intel 8088 microprocessor with firmware in a pair of 27512 EPROMs, and six TMS4426 16K×4 DRAMs. The A/D converter is a Sony CX20052A (8 bit, 20 MHz, ECL output). A pair of MCM2016H 2K×8, 70 ns RAMs serve as acquisition memory.

Custom Tek chips used include 155-0274-00 (A1U130, A1U180), 155-0273-00 (A2U30, A2U80), and 155-0022-00 (A10U2101). There is also a semi-custom part (A10U9208 Display Controller, 156-2452-00).


Custom ICs used in the 2230

Page Class Manufacturer Model Part nos Description Designers Used in
155-0022-00 Monolithic integrated circuit Tektronix M036 155-0022-00 155-0022-01 analog multiplexer Gene Andrews 335 468 2220 2221 2230 7403 7503 7603 7613 7623 7623A 7633 7704 7704A 7834 7844 7854 7912AD 7912HB 7904 R7903 7904A 7934 7A12 7A18 7D12 NT-7000 P7001
155-0124-00 Monolithic integrated circuit Tektronix M138 155-0124-00 horizontal preamplifier Bob Nordstrom 455 SC504 2230 2336 2337
155-0273-00 Monolithic integrated circuit Tektronix M084 155-0274-00 broadband vertical amplifier John Addis 2220 2221 2230
155-0274-00 Monolithic integrated circuit Tektronix M084 155-0274-00 broadband vertical amplifier John Addis 2220 2221 2230