Updating a Hafler DH-110 preamplifier from the early-80’s with new electrolytic capacitors, along with a cleanup and then testing.Continue reading “Hafler DH-110 Preamplifier Refresh”
Another local Ebay find was this Hewlett Packard HP 403B AC Voltmeter in a protective HP vertical case. The case did an excellent job of protecting the meter over it’s now 48 year life.Continue reading “Hewlett Packard HP 403B AC Voltmeter Restoration”
A very interesting find on Ebay from several years ago was an all steel version of a J.H.W. CLIMAX Co padlock.
Click on photos for a larger imageContinue reading “J.H.W. CLIMAX Co — Padlock”
Cleanup and check of a Mettler Instruments K4T single pan top loading balance.
After owning and using this K4T balance for over twelve years, I thought it was time for a full cleanup and accuracy check. When first purchased from Ebay it received a quick cleanup, function, and accuracy check, before I quickly put it to use.Continue reading “Mettler K4T Balance”