Cleaning tip for vintage stereo gear

A medium bristle toothbrush. It alone is plenty to dust along edges and around knob, switches and buttons. Use with warm, possibly slightly soapy water on tougher items:


Left, after cleaning; right, before.


Ugh.


Ah.








After brushing with warm, soapy water.







Sadly the display is plastic, not glass, and someone got packing tape across it and the glue had long since caused the plastic to bubble. Uncleanable.


After some care and cleaning...there are still scratches and bumps but it's finally clean:

Salvaging the Polk PWS110 Subwoofer

The plate amp in this model may unfortunately be faulty. Wire the driver directly to a set of the banana jack inputs and power it with an external amp. Both loud and punchy, which more of a pleasant anomaly than you'd expect.

Audax HD100D25 Tweeters

Used in the legendary Spica TC50 loudspeakers. I've found that they were also used in a Californian speaker from the "Lancer" company, a 3-way with 12" woofer bookshelf type which have to have been from the same time period. Useful to know of a source for potential harvesting...and I don't mean the JBL Lancer speakers or the early Lancer speakers with classic coaxial drivers, etc. I can't even find photos of the things through different searches.