Heathkit Oscilloscope Model # IO-4555

This is one of many Heathkits that belonged to my dad. He built many kits - bought even more that have never seen the light of day.

The Heathkit Oscilloscope IO-4555 has been built.

Perfect for the retro workbench.

Clean case Functions well once warmed up Good size for desktop or desk-side Handle swivels from top to bottom Cord Wrap Manuals Available (see list of auctions) Packaged Professionally by Postal Center USA See the Warm up video See the Finger-test video