The TDA2822 audio amplifier chip (now infamous because of the self-combusting WX versions) now comes installed in a socket for easy replacement from HF Signals (the µBITx manufacturer).
There are still regular reports of spectacular end points for the WX chips on the list. Most are finding that TDA replacements work reliably with no need for a regulator to feed them with a lower voltage. To be safe and secure, however, you can easily feed them with 5-9v via a regulator.
In related news, some constructors are substituting the readily available NTE7155 chip which is 100% pin compatible with the TDA2822.
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