After sitting around with a blown TA2021B then getting the new one, then waiting for the Chip Quick, then replacing the blown chip it's all together and working! Now the challenge is to find suitable speakers (it's going to be attached to my desktop). Controls on the front are from L-R; mains rotary switch, mute and volume.
Attachment 1680Attachment 1681
Notes for next time: 1. leave out the volume pot, it's not very effective and unnecessary for most applications.
2. The mute LED is so dim as to be nearly useless - adjust relevant resistor or leave LED out altogether.
3. The "footprint" is a bit too large - maybe a vertical arrangement would have been more suitable?