The 2SB54 was one of the standard setup in 6-transistor radios for many years in my country. As far as I can recall (and I salvaged many of them in my teen years) the usual layout was:
1 x 2SA52 1st Converter/Oscillator 2 x 2SA49 1st and 2nd IF stages (@455KHz) 1 x 1N34 (or 1N60) AM Detector 1 x 2SB54 Audio driver stage (transformer coupled to the power stage) 2 x 2SB56 Class B Audio Power Stage. I still have several around... What was most interesting of those old 2SB56 GastonGe transistors was that their positive temperature coefficient made them run easily into thermal buildup, and one could even meld solder wire with them... and after that more than rude treatment they would still work (as transistors, I mean :) ) On Tuesday, April 8, 2014 12:46:47 PM UTC-3, charles wrote: > > On 14-04-08 11:38 AM, Nick wrote: > > On Tuesday, 8 April 2014 16:22:36 UTC+1, threeneurons wrote: > > > > Good luck finding those Japanese germaniums ... > > > > > > On eBay at the moment - Toshiba 2SB54s at about USD 5 each > > <http://www.ebay.com/itm/2SB54-Transistor-x-1-pieces-/160937398278>... > > (from Littlediode) > > I believe that that number or the equivalent was fairly standard in the > little 6 transistor pocket radios that still turn up with broken cases > in flea markets, so It probably is not too hard to find. The Former > (and Future) Soviet union was using germanium for a long time, and the > ruskie versions are as easy to get as Ruskie Nixies. > > -- > Charles MacDonald Stittsville Ontario > [email protected] <javascript:> Just Beyond the Fringe > http://Charles.MacDonald.org/tubes > No Microsoft Products were used in sending this e-mail. > -- You received this message because you are subscribed to the Google Groups "neonixie-l" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send an email to [email protected]. To view this discussion on the web, visit https://groups.google.com/d/msgid/neonixie-l/1f7ea415-b801-4c4c-b9a8-8515c5ef4f75%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
