I found a source for the 2SB737 that LesW recommends - 75p each - here. I mailed him, and he keeps them in stock, but I've not got round to ordering any yet. Not sure if they need their partner (the 2SD786 - which seem to be discontinued) to replace the ZTX384, or if another is required.
I'd be interested in comments on current replacements for the ZTX384 .
Don't use BC550Cs in place of the ZTX384 I found them very quiet indeed!
I haven't tried the BC560 (PNPs to the BC550s) in place of the ZTX214s.
I would like to try the 2SD786 (NPN), but the only source I found were asking over £1.50 each, which I thought a little steep.
This place has 2SD786 at 5 cents each (21 in stock), but a minumum order of $25USD is required. I'm happy to compile an order of different bits and pieces if people are interested.
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