Saturday, July 29, 2017

Heathkit Oscilloscopes

I recently picked up a Heathkit IO-10 oscilloscope which I will be restoring and then highlighting in a YouTube video.

A recent post to a Heathkit mailing list asked about a complete list of Heathkit oscilloscopes. My book Classic Heathkit Test Equipment has a chapter of oscilloscopes and includes scopes in a table of all of the Heathkit test equipment.

Here, taken from my book, is a list of all of the models of oscilloscopes I was able to identify through a number of sources. They are sorted by date of introduction. I was able to identify 67 unique models, made from 1947 to 1989.

Model Description First Year Comments
O-1 Oscilloscope 1947 5”
O-2 Oscilloscope 1948 5”
O-3 Oscilloscope 1948 5”, 150 kHz
O-4 Oscilloscope 1949 5”, 2 MHz
O-5 Oscilloscope 1950 5”, 2.2MHz
O-6 Oscilloscope 1950 5”, 200 kHz
O-7 Oscilloscope 1951 5”, 250 kHz
O-8 Oscilloscope 1951 5”, 2MHz
O-9 Oscilloscope 1951 5”, 3 MHz
O-10 Oscilloscope 1955 5”, 400 kHz, PC board
OL-1 Oscilloscope 1955 5”, 5 MHz
OM-1 Oscilloscope 1955 5”, 5 MHz
O-11 Oscilloscope 1957 5”, 5 MHz
OM-2 Oscilloscope 1957 5”
O-12 Oscilloscope 1958 5”, 5 MHz
OM-3 Oscilloscope 1958 5”, 1.2 MHz
OP-1 Oscilloscope 1958 2.2 MHz
OR-1 Oscilloscope 1959 5”, 200 kHz
IO-10 Oscilloscope 1960 3”, 200 kHz, recurrent sweep
IO-30 Oscilloscope 1960 5”, 5MHz
IO-21 Oscilloscope 1961 3”, 200 kHz
IO-12 Oscilloscope 1962 5”, 4MHz
EUW-25 Oscilloscope 1963 3”, 400 kHz
EV-3 Oscilloscope 1964 IMPScope biological EKG type
IO-14 Oscilloscope 1966 5”, 8MHz
EVW-3 Oscilloscope 1968 Assembled version of EV-3
IO-17 Oscilloscope 1968 3”, 5MHz
IO-18 Oscilloscope 1968 5”, 5MHz
EU-70 Oscilloscope 1970 15 MHz, dual trace, solid-state, assembled
IO-101 Vectorscope/Color Generator 1970 3” vectorscope and color bar/pattern generator
IO-102 Oscilloscope 1971 5”, 5MHz
IO-105 Oscilloscope 1971 5”, 15MHz, dual trace
IO-1128 Oscilloscope 1971 3”, vector monitor
IOW-18S Oscilloscope 1971 Berkeley Physics Laboratory, 5” laboratory
IO-103 Oscilloscope 1972 5”, 10MHz
SO-29 Oscilloscope 1972 Biological, high gain DC
IO-104 Oscilloscope 1973 5”, 15MHz
IO-4510 Oscilloscope 1974 5”, 15 MHz, dual trace
SO-4510 Oscilloscope 1974 Assembled version of IO-4510
IO-4530 Oscilloscope 1975 5”, 10 MHz, TV Service
IO-4540 Oscilloscope 1975 5”, 5 MHz, hobby/service
IO-4560 Oscilloscope 1975 5”, 5 MHz, auto triggered sweep
SO-4530 Oscilloscope 1975 Assembled version of IO-4530
SO-4540 Oscilloscope 1975 Assembled version of IO-4540
IO-4550 Oscilloscope 1976 5”, 10 MHz, dual trace
SO-4550 Oscilloscope 1976 Assembled version of IO-4550
IO-4101 Oscilloscope 1977 Vectorscope like IO-101
IO-4541 Oscilloscope 1977 5”, 5 MHz, special TV triggering
IO-4555 Oscilloscope 1978 5”, 10 MHz
IO-4105 Oscilloscope 1979 5”, 5MHz
IO-4205 Oscilloscope 1979 5”, 5MHz, dual trace
IO-4235 Oscilloscope 1979 5”, 35 MHz, dual trace, delayed sweep
SO-4105 Oscilloscope 1979 Assembled version of IO-4105
SO-4205 Oscilloscope 1979 Assembled version of IO-4205
IO-3220 Oscilloscope 1982 5”, 20MHz, dual trace, battery powered
SO-3220 Oscilloscope 1982 Assembled version of IO-3220
IO-4360 Oscilloscope 1984 5”, 60 MHz, triple trace
SO-4221 Oscilloscope 1987 5”, 20 MHz, dual trace
SO-4226 Oscilloscope 1987 5”, 25 MHz, dual trace
SO-4521 Oscilloscope 1987 5”, 50 MHz, dual trace
SDS-5000 Oscilloscope 1988 Computer-based
ID-4850 Digital Memory Oscilloscope 1989 Digital memory box for scopes
IO-4210 Oscilloscope 1989 5”, 10MHz, dual trace
IO-4225 Oscilloscope 1989 5”, 25 MHz, dual trace
SO-4552 Oscilloscope 1989 5”, 25 MHz
SO-4554 Oscilloscope 1989 5”, 40 MHz

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