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Lafayette LA-40 help.!!

G

gitronics

New Member
:scratch2:Hello there I hope some one will help me out I just got an Lafayette amp LA-40 with 4 missing transistor and l Like to restore the missing ones are Q707L,Q706L,Q707R,Q706R any body having the manual would you tell me the number of the transistors and location for thanks again.
Regards.
 
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If your missing transistors are the output transistors, you probably have more bad parts in there.
 
Thanks for replying I just got another e-mail where some one said this are the original transistors 2sc898 and 2sa758 but am still stuck where do they go ? empty places are Q706L,Q707L,Q706R,Q707R as long as I know where theygo I can take it from there if you can give me an input will be appreciated thanks again.
 
Not enough information! The 2SC is NPN and the 2SA is PNP but there are two ways these might go into the circuit - emitters together or collectors together. You need to get a diagram or draw one. Is there a single power supply or dual? Positive or negative? I have an old Lafayette amplifier that uses a pair of NPNs but the power supply is negative. Not what I expected.
 
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