[600MRG] By the way --- your receiving equipment --- BC-453/4 Modifications

[dick.bingham]

Hello Bill -KU8H

Regarding the BC453 receiver, you can knock-out the dynamotor connector and replace it with an 8-pin octal socket to add a 35Z5 rectifier tube to the tube list.

Connect all of the tube filaments in series and wire the 35Z5 as a rectifier to replace the DC output from the dynamotor and you are good to go. USE an isolation transformer to connect the converted BC453's now almost 110-volt worth of filaments and the 35Z5 rectifier to 110VAC.

My "Elmer", W7CVI, modified my 454 receiver (3-6MHz) back in 1954 and it was my Novice/General Class radio for many years.

One more thing you can do with the modified 454 is to drill a small diameter hole in the top of one of the IF-Transformers twist-on access covers. Then insert an insulated wire thru the hole in the cap and tie a single knot in the wire so it can not be inadvertently pulled out once carefully inserted into the IF-transformer. Then tune a BC-Band radio to the 454's IF frequency (1415KHz if I remember correctly) and listen to the signals to which the 454 is tuned to receive.
 
73 de Dick/w7wkr and wd2xsh-26 CN98pi
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