[TenTec] TenTec Digest, Vol 168, Issue 1

Edward McCann edwmccann at yahoo.com
Thu Dec 1 12:03:54 EST 2016


Concur fully with your observation that Voltage Balun does not CMC suppression.

My question trying to ask if the early TenTec tuners used a Voltage Balun (as did most the early Heathkit, Dentron, etc. tuners of the day) to provide balanced output, OR did TenTec supply in its 229A series a Current Balun, with its better CMC suppression characteristics.

The question could have been phrased using more concise use of the English language.

Rick DJ0IP,  advises re the 229A that:

" In this case the 4:1 [in the 229A tuner] may be a voltage balun.  Its only job is the impedance transformation."

When the thing gets here (just purchased on 2nd hand market, and not yet arrived at this QTH) I guess I'll just open it up an look. 

Rick's comments are spot on with regard to the world of Baluns in general. 

But thank you both.

Ed McCann

Sent from my iPhone

Sent from my iPhone
> On Dec 1, 2016, at 12:05 AM, tentec-request at contesting.com wrote:
> Was it a Voltage Balun as was the early craze, or current and suitable for decent CMC suppression?

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