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RE: HF Ham Radio recommendation
To: CRTech <crtech@crtech.org>
Subject: RE: HF Ham Radio recommendation
From: Mike Shane <mshane@salemomaha.com>
Date: Mon, 31 Jul 2017 04:31:28 +0000
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Thread-topic: [CRTech] HF Ham Radio recommendation
Wow. Somebody else used a TBS-50 (right?).  My high school radio club had one of those.  There were 4 versions: TBS-50A, -50B, -50C, and -50D.  The D used a dynamic mic and had a speech preamp.  I think an external modulator section was required which we had in the form of a heap big home brew job with merc-vapor rectifier tubes.  

The A and B were, I think, CW only - don't remember the difference between them.

The C, at least, operated on ALL the then-popular ham bands including 160, 6 and 2 meters.  Actually, the C was was what my high school club had.  Nobody had a carbon mic so I brought one of my brother's from home.  It had a PTT switch on it, which while not connected to anything externally, required you push and hold it to connect the mic.  Never saw any hand-held mic do that.  Of course, this particular PTT switch button was chrome, rounded, really hard to keep depressed and real easy to slip off.  Plus it sounded awful!  I think it was made by Calrad.  Not one of their best efforts.  They had a crystal mic I had and used well into the 80's and 90's.  That one was a winner.  My brother had bought it in 1959 new for $2 and change.  But I digress.

I don't think a rig was ever designed before that one with that many bands capability and none came out that I knew of after it until the IC-706 finally included all those bands.  For two-meter operation, a separate output jack was provided recessed into the cabinet and accessible through a hole in the top.  The idea was to take a stiff piece of 19" long wire with an RCA plug on the end and put that in the provided jack making a quarter-wave whip.  The reason for that extra jack: The Pi Network output wasn't used on 2, and using the extra jack took one of the tuning caps out of the circuit, IIRC.  This was even before my broadcasting career started so I may not recall correctly! 

Pretty sure it had an 807 final (top freq for ICAS service was 125 MHz so operating on 2 meters was pushing it) and you were somehow limited by the rig to 30 watts on 2.  Slug tuning on all early stages with individual slugs for each band, except where using the same fundamental or multiplier output for 2 or more bands.

I first thought it was a POG, until I looked inside and read the manual and schematic.  It was a classic design.

Mike Shane  W7MSL
Salem Media Omaha
From: John Stortz [ka4flx@gmail.com]
Sent: Sunday, July 30, 2017 7:28 PM
To: CRTech
Subject: Re: [CRTech] HF Ham Radio recommendation

Yikes! With prices like that, it's no wonder there are fewer & fewer young hams...

A guy gave me my first rig as incentive to get the license. That was in 1980, but the 50W Harvey Wells Transmitter was made in 1948, I think. VFO was very sensitive to vibration & my ham stuff was on the opposite side of our son's bedroom. As a baby, he would rock himself to sleep. As he grew a bit, he would rock the entire crib, which would hit the wall. When that happened, my CW sounded like "DA-DI-BOING-DIT  DA-BOING-DI-DAH...."

Memories to chuckle about, now, but frustrating at the time. I think it's in my attic, but no plans of ever lighting up those tubes again.

John S.

*Politics is the gentle art of getting votes from the poor and campaign funds from the rich, by promising to protect each from the other.
*~Oscar Ameringer~

On Sat, Jul 29, 2017 at 4:59 PM, Dave Land <dave@klvv.com<mailto:dave@klvv.com>> wrote:
What's your budget for one? If it's a limited budget I'd look at one of these:
These are going for $1250 now.
They also have a new model coming out soon which is a little nicer, the 7610.
No price yet that I've heard about.

If you have a higher budget then one of these is the way to go:

I have a Flex 6300 if you'd like to discuss those. It's been replaced by the new 6400 that costs $500 less! and has better specs. You can find a used 6300 for well under $2000 right now which is a super bargain! A new 6400 is $2000.
73, Dave KD5FX

On Fri, Jul 28, 2017 at 3:15 PM, Terry Cowan <tcowan@knlr.com<mailto:tcowan@knlr.com>> wrote:
Hams on the list that operate HF....

What is your recommendation for a new "rig"?


Terry Cowan


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Follow-Ups: RE: HF Ham Radio recommendation
(Mike Shane <mshane@salemomaha.com>, 31 Jul 2017 04:42:38 -0000)
References: HF Ham Radio recommendation
(Terry Cowan <tcowan@knlr.com>, 28 Jul 2017 20:15:54 -0000)
Re: HF Ham Radio recommendation
(Dave Land <dave@klvv.com>, 29 Jul 2017 20:59:15 -0000)
Re: HF Ham Radio recommendation
(John Stortz <ka4flx@gmail.com>, 31 Jul 2017 00:28:25 -0000)
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