Can anyone identify these two components, marked "SKY 4433" and "2.000000 K.D.S", respecitvely? Are they capacitors, crystals, or something else? They are from a vintage 1970s ball-and-paddle-style video game (Parat Game by Technigraph) based around the AY-3-8500 chip.
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1\$\begingroup\$ I can't confirm this, but the fact they are placed in such close proximity to a pair of ceramic caps and a tuning cap suggests that they may be early crystal oscillators, probably 2MHz. \$\endgroup\$– Caleb ReisterSep 30, 2019 at 7:25
1 Answer
Both are crystals. 4.433 MHz is for PAL subcarrier and 2.0 MHz for something else like CPU.