[ARC5] BC-AS-230 Transmitter, part 1 - tube adapters, general clean-up, quest for a dummy load

[Ben Hall]

Hi Mike and all,

Sigh...I looked thru at least four of the ones I've got here and didn't 
see that paragraph...

Back to my Mouser / Digikey searching...  :)

thanks much and 73,
ben, kd5byb

On 12/22/2014 6:52 AM, Mike Hanz wrote:
>
> Most of the SCR-183 manuals contain this excerpt:
>
> (a) Antenna A-55. This is a small phantom
> antenna having a capacity of 100 mmfd. with a
> resistance of 5 ohms. If the unit is not available
> a substitute may be used, for approximate measurements,
> consisting of a small mica condenser
> and a wire resistance, connected in series between
> the Transmitter antenna and ground binding
> posts. The condenser should be of standard
> make, rated capacity 100 mmfd. and the resistor
> should have a d-c resistance of 3.5 to 4 ohms.
> Antenna A-55 is suitable for bench testing
> throughout the range 4000-7700 kc. The capacity
> of 100 mmfd. is too small for use throughout
> the entire range of 2500 to 4000 kc, and if tests
> are desired in these bands a substitute unit
> should be used having a higher capacity: A unit
> having a capacity of 200 mmfd. with a resistance
> of 5 ohms is suitable for testing throughout the
> whole of this lower frequency range.
>
> 73,
> Mike  KC4TOS
>