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

2 comments:

Daniel Graham said...

Do you happen to have or know where I can find a manual for an old Heathkit OM-3 Oscilloscope?
I have to replace a missing rotary switch(Sync Selector, shown as switch "NN" in documents I have found so far)that was missing from an inherited unit, but have no idea what tabs the loose wires should be connected to.

Daniel Graham said...

You can direct email me at danielgraham1961@att.net if you still monitor this blog.
Thanks in advance....Danny