[Milsurplus] or BC 610

[C.Whitaker]

de WB2CPN in South Central Pennsylvania.

The coupler that came with the BC-610 in the mobile arrangement was big 
and heavy.
Had two bands, High and Low, both HF, naturally.
The BC-610 is link coupled from the final stage to the Antenna Tuner.  
Impedance is
approximately 50 to 100 Ohms.  Antenna tuning was fixed vacuum 
capacitors, and
rotary inductors.   I have a lot of time on these radios.  Going way back.

I have fed 600 Ohm open wire line and 300 Ohm Twin Lead by using two 
high-voltge
mica capacitors tapped on to the final coil, but I DO NOT recommend 
anyone to do that.
I was young and more stupid then, (1946 in USAF.)

Any good wide-range 50 or 70 OHM tuner should work IF you consider the 
BC-610
output power.  An old B&W,  or a contemporary MFJ that can handle the power.

Stupider, but I have doubled in the final to get on 10 Meters.  No 
efficiency, and the
tube runs hot.   Ah, youth......
73  Clete


On 8/20/2014 12:10 AM, Raymond Cote wrote:
>
> Does anyone on these lists have a BC-610?  What kind of antenna coupler is being used?  I saw a reference to a TMC designed coupler that referenced it as being designed specifically for the BC-610 but it was larger than the R-390A and weighed more. Is this what owners are using?
>
> The 610 is  huge as it is!
>
> Inquiring minds want to know.
>
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