The current revision of the Quadra Power supply manual says:
AC 200 to 240v.
Anything approved by UL is subjected to testing at +/- 10% of nominal line
voltage (for 240, that calculates to 216v to 264v), and the device should
be able to operate over that range.
Some examples: amplifiers like the Acom 2000A are rated exactly this way
(Nominal +/- 10%) or greater. The Acom 1000 is rated at +10%/-15% of
nominal line voltage. The new Acom 600S solid state amplifier is rated at
170v-265v.
Bob W5OV
On Wed, June 25, 2014 3:00 pm, Joe Subich, W4TV wrote:
>
> The issue is that the Quadra was designed for the Japanese market in
> an era where the common input power level was 100/200 V and typical maximum
> voltages were 220V. As such a 240 V maximum input voltage is entirely
> acceptable ... particularly considering that the 240 V spec even covers
> 110/220V that was common in North America at the time.
>
>
> The VP-1000 (Power Supply) manual specifies 14A at 200/220/234V input.
> I would be looking for a 250 to 220 V boost/buck transformer rated for
> 15A to be safe. Solid state amplifiers of this generation tend to
> have somewhat lower efficiencies than modern tube amplifiers - around 40 to
> 50%. At 1000W output the amplifier is specified for 48 A at 48V
> (2300 W) input - consistent with the rated 14A input.
>
>
> 73,
>
>
> ... Joe, W4TV
>
>
>
> On 2014-06-25 3:25 PM, Bill Turner wrote:
>
>> ORIGINAL MESSAGE: (may be snipped)
>>
>>
>> On 6/25/2014 12:18 PM, Adrian Flynn wrote:
>>
>>> If you monitor the line voltage closely you will find that the "Power
>>> Companies" are slowly raising the *Normal Line Voltage* to /*125
>>> volts per leg and 250 volts* *for both legs!*/
>>
>> REPLY:
>>
>>
>> Nevertheless, I would ask the power company to fix it. If they refuse,
>> then go from there.
>>
>> 73, Bill W6WRT
>> dezrat@outlook.com _______________________________________________
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>>
>>
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