[ARC5] Resistance BC-453, BC-454

[David Stinson]

Does the resistance table specify the test instrument?
A 1000-Ohms-per-Volt meter from 1943 may give very
different readings from a modern Hi-Z FET multimeter.
I suggest you power the filaments and, if all looks well,
monitor the B+ current and apply 25-90 VDC and see
what happens.  If the current looks reasonable- no shorts
or open, the set should play at 90V almost as well as
at full B+.   If it plays well at that level for some time,
go ahead and run it up to your chosen B+.

73 DE Dave AB5S

On 12/5/2021 5:42 PM, Chris Hu wrote:
> Hello,
> I'm about to power up my two receivers BC-453-454 for bring them to life.
> But, when I checked the Resistance Table, neither of them have the 
> resistance close, or according to the Table.
> I checked the wires as the circuit and they are exactly as it should 
> be.(original)
> I checked the tubes, all are quite new-
> I checked all resistors, and they are more or less as the should be.
> I checked the Capacitors.All news, I replaced them in one case, not 
> short-circuits.
> The point is, I don't know what else can I do, to bring the resistance 
> to values as in the table.
> Do you suggest me  to power it up?
> Please give me ideas what to do before making a mess.
> Regards and thank you
> Chris
>
>
> ______________________________________________________________
> 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: https://www.qsl.net/donate.html

-- 
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus