Heathkit TC-1 Tube Tester Restoration Part 4

Part 4 – Cleanup

I began cleanup of the TC-1 Tube Tester with corrosion removal on the front panel.  The painted side was in pretty good condition, with just a little discoloration where the rubber grommets were.  I couldn’t get the discoloration out, but new grommets should cover it up pretty well.

Front Panel

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Heathkit TC-1 Tube Tester Restoration Part 3

Part 3 – Teardown

The next part of the restoration is the teardown phase.  This will include corrosion removal and general dirt/flux cleanup of the unit.  I started by removing the 10 lever switches.  These were held in place with 3 bus wires and a few wires going off to other circuitry.

Lever Switches Removed

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Heathkit TC-1 Tube Tester Restoration Part 2

Part 2 – Testing the Transformer

In Part 2 of this series, I’ll check out the transformer in the tube tester.  This is the heart of the unit, and if it is not good, then the project will be scrapped.

Test Locations for Filament Readings

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Heathkit TC-1 Tube Tester Restoration Part 1

Part 1 – Initial Inspection

I picked up this Heathkit TC-1 tube tester at the Williams, AZ Hamfest several years ago.  It had the power cord cut off at the entry, and a $10 price tag.  I took a chance that the transformer might be good, and picked it up.  Now to find out if it was worth the risk…

Heathkit TC-1 as found

The front panel was in pretty good shape, with a few knobs missing.  All controls moved smoothly through their positions.  The power cord is missing, and there is a little bit of corrosion around the mounting hardware for the controls and the lamp test socket.

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Heathkit IG-42 Signal Generator Restoration – Part 4

Cabinet Repair

Front_Panel

Now the the IG-42 was in good electrical order, it was time to move on to the cabinet repair.

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