I thought he said the problem was a bad voltmeter. If not, your advice
about the resistor is perfect. :-)
73, Mike
www.w0btu.com
On Sat, Dec 10, 2016 at 2:01 PM, Steve Wright <stevewrightnz@gmail.com>
wrote:
> On 11/12/16 06:00, "Ken Durand" <N4zed@comcast.net> wrote:
>
>> Hi group, I checked the filament voltage on my FL2100b and it is at 7.2
>> volts or there about. So I then checked the line voltage going to the amp
>> and it is 257 vac, the amp was built for 220v. The HV is at 2500v. What
>> would be the best way of reducing the filament voltage down to 6.3 volts?
>> The HV is still within the tube voltage ratings. I don't have a 240 v
>> variac.
>>
>
> I'd be temped to use some sort of resistor. The load doesn't vary at all.
>
> Even just a piece of smaller diameter wire coiled up and tucked in there
> should do it.
>
>
> Steve
>
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