[ARC5] Need info on Command Set Receiver B+ current drain

[Phillip Carpenter]

Dennis,

Thanks for the data point.

According to my chart, at 70 volts the receiver would pull 12mA at full gain.

Pretty close to your observation.

Have you ever checked the current drain at full gain?

Phillip, WB4PAC 

Sent from my iPhone

> On Jul 18, 2019, at 1:36 AM, Dennis Monticelli <dennis.monticelli at gmail.com> wrote:
> 
> I can say based upon experience that at 70V with fresh caps the drain is close to 10mA.
> 
> Dennis AE6C
> 
>> On Wed, Jul 17, 2019 at 8:18 PM Kenneth G. Gordon <kgordon2006 at frontier.com> wrote:
>> On 18 Jul 2019 at 2:02, Bob via ARC5 wrote:
>> 
>> >     Can someone provide data on the B+ current drain on a typical Command Set receiver over 
>> > the B+ range of say 150VDC to say 225 VDC
>> 
>> I measured the current draw of at least two of my refurbished (NO leaky caps) "ARC-5" 
>> receivers, a BC-453 and a BC-454.
>> 
>> Plate voltage was 247 VDC, gain control at max, a station tuned in, with a properly 
>> impedance-matched audio load, the total current draw was 50 mA.
>> 
>> That audio level was MUCH too loud, BTW. It was almost rattling the windows.
>> 
>> At normal listening levels, current draw was 17 mA.
>> 
>> As Mac said, 20 to 30 mA is about right.
>> 
>> Ken W7EKB
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