Total posts : 45366
You have given me some VERY valuable info!
Right before the RC-6A went off to New Jersey,
I ran some tests into a dummy load at 860 kHz.
(860 is the only rock I have, and it’s not a good
Test number one showed some power out but with
almost no audio. That’s when I decided to switch
the tubes – the 3 6AL11s – around. I finally got to
a combination where I was getting 6 watts out –
maybe a little more – with about 70 percent modulation.
I was pretty happy with that, because it meant things
weren’t as bad as I thought.
That’s when my friend came through Connecticut on
business, and picked up the RC-6A on his way home
to New Jersey.
I was under the impression that the neon bulb went
out when the final amp was tuned properly. (Somebody
gave me bad info, I guess.) This contradicted the fact
that when I was getting the 6 plus watts out on 860 –
the neon bulb WAS at full brilliance.
Thanks for the info on the coupler and the tuning
procedure. I may be able to get a coupler back
from a different friend when the RC-6A comes back.
Meanwhile, I can tell my friend in New Jersey about
the neon bulb resonance indicator, and how it
I have one other question that I’m sure you can confirm.
I believe some RC-6As were able to be operated
throughout the entire AM broadcast band –
540 to 1600 – and that some only covered the
Do you have any comments on that frequency
Thank you very very much!
Bruce, Dog Radio Studio 2