BC-348 Modifications

Four easy modifications that can be added to a BC-348Q to make it a more practical for Ham radio or SWL use, Please note I started with a 348 that was allready modified, if you have a clean unmodified 348 dont change it. Find one that has been hacked! origional examples are hard to come by and shoud be preserved.
Ray Fantini KA3EKH

Category:

Science & Technology

Tags:

• Ham radio
• military receiver
• BC-348

[rafantini8]

There is a drawing of the S meter circuit on my web site on the BC-348 modifications page. The new s meter circuit goes between the feed to the screen grid of the 2nd IF amplifier and the screen supply, the screen grid on the amplifier is pin 6. Be careful because high voltage will be on that point.

Ray Fantini

[guimbadriver]

i have a complete BC-348 Receiver, including the Dynamotor is still used as the internal hi voltage power supply,this part of circuit i have preserved i upgraded only the carbon resistor and capacitors,with the change of time this components present several leakage and resistance alterations.

©2011 Guimbadriver Broadcast Corporation,All rights reserved.

[svenska1946]

Hi Ray,..I just acquired a BC 348-B..and after doing some "Cleaning" of the exterior ( it came from a Smokers home) and cleaning up the incoming AC line ( I added a Computer type Cord/plug) the radio works fine with a small "Long wire antenna"..can ypou tell me exactly where you tapped the line into the radio for the "input" for the "S" meter ( Tube, and tube socket number)..Thank you!!.......Richard KC6VKV Reno, Nevada

[foxrivermotorman]

I pick up one to way back in 1994-95 for $50 with a little mods with a AC power supply and I love it and had an ART-13 working with it but the ART-13 bit the dust and have to try to rewire it. Looks like it will be fun to do.

[chrisw71]

Nice radio. I've got one that's been modified in similar ways for s-meter, speaker level audio and standard ac power. It works well. I bought it at a local hamfest. I'll try to do a video in the future.