On Saturday, January 12, 2013 12:25:59 PM UTC, Phil Allison wrote:
"Graham"



Wanted qty-4 TH562 / SD1731 PA Transistors





** FYI to readers:



these are obsolete "strip line" RF transistors made by " ST " for use in

SSB, linear amplifiers up to 30MHz ( ie the HF band).





Any ideas as to supply of 'genuine' items ?



The OP knows there are offers from on-line dealers in HK & China at about

US$ 85 a piece.



But he has nagging doubts ...



I would too.





.... Phil

Yes had from MLC , 4 duff below spec items .in the process of returning

G.