[Heathkit] SB-200 @ 50 Hz

[Ken]

    The "mass" of the transformer can make a big difference.  Compare a 400 Hz transformer to a
  60 Hz transformer.

Ken


Interesting, on page 4 of the SB-201 manual under Introduction, it says
50/60 Hz, yet on page 44, under Power Source, it just says 60 Hz.

Personally, I don't see where 50 or 60 hertz would make that big of a
difference relative to the power transformer. The fan motors in both
amplifiers also use the same part number AC fan.

Pete, wa2cwa




On 02/28/2016 11:32 PM, Ken wrote:
> Interesting, on page 4 of the SB-201 manual, it specifies "120 VAC or 
> 240 VAC 50/60 Hz lines."  They both use the same 54-151 Power 
> Transformer.
>
> On 02/28/2016 09:14 PM, manualman at juno.com wrote:
>> See page 43 of the SB-200 manual under POWER SOURCE. Clearly says 120
>> volt or 240 volt  AC 60 cps.
>>
>> Pete, wa2cwa
>>
>> On Sun, 28 Feb 2016 19:11:43 -0700 wa7zze at gmail.com writes:
>>> The consensus seems to be that the SB-200 would not do well at 50 Hz.
>>>
>>>
>>> It is odd that all the other SB accessories (610, 620, et al) were
>>> specifically rated for "50/60 Hz" operation. Even the HP-23 power
>>> supplies.
>>>
>>> That the 200 would not run at 50 Hz is incongruous. I heard from
>>> Heinz (in Germany) who said the 200 was sold there and was very
>>> popular, but I'm not sure if it was a special European version or
>>> not.
>>>
>>> I need to dig into this a little more just to satisfy my curiosity.
>>>
>>>
>>> Thanks to all who responded.
>>>
>>> Best,
>>>
>>> Chuck / WA7ZZE
>>>
>>>
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>