[ARC5] OT? bc-348 bfo question

[Joe Connor]

Fernando:

    I can't specifically answer your question but I suspect this is the reason a lot of people modified
BC-348s to separate the RF gain from the AF gain. The Surplus Radio Conversion Manual by Evenson and Beach explains how to do this. If you run a google search, you can find it and read the appropriate section.

                                     Joe Connor



>________________________________
> From: Fernando - LU2DFM <lu2dfm at gmail.com>
>To: arc5 at mailman.qth.net 
>Sent: Friday, September 13, 2013 11:28 AM
>Subject: [ARC5] OT? bc-348 bfo question
> 
>
>
>Sorry if this is OT here.
>
>I'm repairing and aligning a BC-348 (E, M or P variant, don't know
>exactly which).
>
>The set is going on very well on AM so far, however the BFO injection
>level seems to be too low for SSB on strong signals. It's possible to
>get SSB on the headphones with MVC and _very_ low RF gain.
>
>All voltages and resistors values are ok around that stage with and
>without BFO on. The xtal filter is ok too (bandwith with xtal on is about
>1-2 kc).
>
>The 2nd IF/CW osc. is the 6B8/VT93.
>
>Anyone knows what the level of the BFO is supposed to be? 
>
>Thanks.
>
>-- 
>73 de Fer, LU2DFM
>______________________________________________________________
>ARC5 mailing list
>Home: http://mailman.qth.net/mailman/listinfo/arc5
>Help: http://mailman.qth.net/mmfaq.htm
>Post: mailto:ARC5 at mailman.qth.net
>
>This list hosted by: http://www.qsl.net
>Please help support this email list: http://www.qsl.net/donate.html
>
>
>