[MRCA] [MMRCG] BC-474 Video

[Ray Fantini]

Cool, ten watts! What kind of plate voltage were you running on the transmitter? I have only been using around 275 volts and that is giving around three to four watts into fifty Ohms. Suspect that the transmitter may be safe above the rated 300 volts rated but would not to go much over 350 or 400 because think the 6V6 is only rated up to 325 or so, although have seen people run 6V6 tubes at much higher plate voltage.
All of the replacement capacitors that I put in the transmitter are rated for 600 volts but have to wonder about the insulation value for things like the modulation transformer.

Ray F/KA3EKH


From: MMRCG at groups.io <MMRCG at groups.io> On Behalf Of David Stinson via groups.io
Sent: Thursday, August 7, 2025 10:01 AM
To: MMRCG at groups.io; mrca at mailman.qth.net; milsurplus at mailman.qth.net
Subject: Re: [MMRCG] BC-474 Video



Thanks for the video, Ray.
My vary favorite WWII "ground pounder" radio, mostly
because of its simplicity.
73 DE Dave AB5S
Old QSL from about 2004 or 5:

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