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Old 7th Mar 2020, 12:26 pm   #14
poppydog
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Join Date: Oct 2015
Location: Cornwall, UK.
Posts: 849
Default Re: Grundig Concert Boy 1100 (again)

Quote:
Originally Posted by 1980s_john View Post
Hi,

An earlier thread included this useful info:

"Not to worry, I've got a scrap 1100 here. The transistor(s) that may have failed are on the heatsink, (extreme right on diagram) T011,T012,T013, the first being a circular type held in a metal C-clip, and the latter two being square and bolted direct to the heat sink. It is most likely one of the last two has failed, but it may be a good idea to replace both T011 is AC121 (AC128 will do) T012 is AC187K, and T013 is AC188K. There may be something on the forum about testing these."

I've looked at the schematic and can't find a reference for the transistors used - is there one please, or is the above based on experience and writing down the observed part numbers?

Regards,
John

The quote your referring to is by restoration73 on my thread way back in 2015, how time flies. I never did count how many members chipped in to help but it was quite a few
If your concertboy sounds anything like mine still does then I think you will be happy, the sensitivity on fm is impressive.

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