Topband: Nostalgic "openings"

[Charlie Cunningham]

Hi, Mike

Well, I don't remember just where I got the plans for mine, but it worked
great. The T-19 was the 3-4 MHz Navy version, in a black wrinkle finish
enclosure. Those were amazing radios! Amazing both electrically and
mechanically! I guess they were used in the F6F Hellcats or some of the
contemporary Navy aircraft or fighter planes. I saw one that bounced off the
bed of a pickup truck onto a blacktop highway once shattering the tubes.
When the tubes were replaced, it worked fine, and thd dial calibration
hadn't shifted more than a kilocycle or so!! I would have been in junior
high when I built mine. I was first licensed as KN4OTV I February 1957,
about a month after my 13th birthday! Amazing what they were able to get out
of 4 tubes (and one of those was the "magic eye" tube used in the crystal
dial calibrator)! Interesting time for s kids whose dads served in WW II. My
dad was in the Navy in the Pacific on the aircraft carrier Lexington, CV-16.

73,
Charlie, K4OTV

-----Original Message-----
From: Topband [mailto:topband-bounces at contesting.com] On Behalf Of Mike
Waters
Sent: Saturday, January 18, 2014 7:10 PM
To: Charlie Cunningham
Cc: topband
Subject: Re: Topband: Nostalgic "openings"

I built EXACTLY the same thing when I was in high school (or maybe junior
high) !
I think the plans for that DSB arrangement were in an old CQ magazine.

73, Mike
www.w0btu.com

On Sat, Jan 18, 2014 at 2:41 PM, Charlie Cunningham <
charlie-cunningham at nc.rr.com> wrote:

> The first "sideband" rig I ever had -back in the 1950s was a T-19 (3-4 
> Mc)
> ARC-5 in which I converted the 1625 finals to a high-level balanced 
> modulator by connecting the balanced grid tank to apply RF in 
> push-pull to the control grids and applied push-pull audio transformer 
> coupled to the screen grids and left the plates in parallel.
>
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