[Amps] : Re: Vendor For Transformer Rewind

[Gary Smith via Amps]

On 1/24/2015 11:14 AM, amps-request at contesting.com wrote:
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> Today's Topics:
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>     1. Re: Vendor For Transformer Rewind (Joe Subich, W4TV)
>     2. Re: Vendor For Transformer Rewind (Vic Rosenthal 4X6GP/K2VCO)
>     3. Re: ceramic vs glass (Carl)
>     4. Re: ceramic vs glass (Carl)
>     5. Re: ceramic vs glass (Col. Paul E. Cater)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Sat, 24 Jan 2015 12:07:16 -0500
> From: "Joe Subich, W4TV" <lists at subich.com>
> To: amps at contesting.com
> Subject: Re: [Amps] Vendor For Transformer Rewind
> Message-ID: <54C3D144.7030509 at subich.com>
> Content-Type: text/plain; charset=utf-8; format=flowed
>
>
>   > Is there anywhere in the US that still  has  120/240 volt power?
>
> Most residential in the US is 120/240 - even 123/246 as utilities
> push the limits to minimize transmission losses.
>
> Just for fun, I just checked my line voltage.  Here in a semi-rural
> area on Saturday morning with no particularly heavy load conditions
> (neither heat nor A/C), I'm seeing 122.5/245 V.  If I were rewinding,
> I would consider 208/220/230/245 and maybe 260 (or 208/220/235/250)
> as I expect the overvoltage to continue to worsen.
>
> The increasing number of devices with switching supplies will not
> be impacted by 20% overvoltage, but tubes, etc. don't like even 10%
> overvoltage if you're looking to get maximum filament life.
>
> 73,
>
>     ... Joe, W4TV
>
>
> On 2015-01-24 11:44 AM, Martin A Flynn wrote:
>> Vic
>> 240 is the original operating voltage.   Considering the cost of the
>> tube, I don't want to starve the filaments by operating at the lower
>> voltage.
>>
>> Is there anywhere in the US that still  has  120/240 volt power?
>>
>> 73,  Martin
>> W2RWJ
>>
>> On 1/24/2015 11:31 AM, Vic Rosenthal wrote:
>>> But he should have them add a tap for 240, too.
>>>
>>> Vic K2VCO /4X6GP
>>>
>>>> On Jan 24, 2015, at 5:56 PM, Jim W7RY <w7ry at centurytel.net> wrote:
>>>>
>>>> Agreed!
>>>> 73
>>>> Jim W7RY
>>>>
>>>>
>>>> -----Original Message----- From: Paul Kraemer Sent: Saturday, January
>>>> 24, 2015 7:06 AM To: maflynn at theflynn.org ; amps at contesting.com
>>>> Subject: Re: [Amps] Vendor For Transformer Rewind
>>>> Martin
>>>> My vote goes hands down to the folks at Heyboer
>>>> Paul K0UYA
Electric motor rewind shops and do this.  Also  Hammond in Canada.

Gary...wa6fgi

>>>>
>>>> -----Original Message----- From: Martin A Flynn Sent: Saturday,
>>>> January 24, 2015 8:51 AM To: amps at contesting.com Subject: [Amps]
>>>> Vendor For Transformer Rewind
>>>> A while back I had picked up a Henry 3002A amplifier with a shorted
>>>> transformer.   I am interested in locating a vendor to re-wind the
>>>> original (or supply a replacement) that will not require butchering
>>>> the chassis, along with adding taps on the primary for 208 and 220
>>>> (club station is 208, house is 220)
>>>>
>>>> 73 W2RWJ
>>>> Martin
>>>>
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>
> ------------------------------
>
> Message: 2
> Date: Sat, 24 Jan 2015 20:26:32 +0200
> From: Vic Rosenthal 4X6GP/K2VCO <k2vco.vic at gmail.com>
> To: maflynn at theflynn.org, Jim W7RY <w7ry at centurytel.net>
> Cc: "<amps at contesting.com>" <amps at contesting.com>
> Subject: Re: [Amps] Vendor For Transformer Rewind
> Message-ID: <54C3E3D8.9090408 at gmail.com>
> Content-Type: text/plain; charset=windows-1252; format=flowed
>
> I see. I didn't understand. I thought you meant ONLY 208 and 220.
> My old QTH in Fresno was usually quite close to 240.
>
> On 24 Jan 2015 18:44, Martin A Flynn wrote:
>> Vic
>> 240 is the original operating voltage.   Considering the cost of the
>> tube, I don't want to starve the filaments by operating at the lower
>> voltage.
>>
>> Is there anywhere in the US that still  has  120/240 volt power?
>>
>> 73,  Martin
>> W2RWJ
>>
>> On 1/24/2015 11:31 AM, Vic Rosenthal wrote:
>>> But he should have them add a tap for 240, too.
>>>
>>> Vic K2VCO /4X6GP
>>>
>>>> On Jan 24, 2015, at 5:56 PM, Jim W7RY <w7ry at centurytel.net> wrote:
>>>>
>>>> Agreed!
>>>> 73
>>>> Jim W7RY
>>>>
>>>>
>>>> -----Original Message----- From: Paul Kraemer Sent: Saturday, January
>>>> 24, 2015 7:06 AM To: maflynn at theflynn.org ; amps at contesting.com
>>>> Subject: Re: [Amps] Vendor For Transformer Rewind
>>>> Martin
>>>> My vote goes hands down to the folks at Heyboer
>>>> Paul K0UYA
>>>>
>>>> -----Original Message----- From: Martin A Flynn Sent: Saturday,
>>>> January 24, 2015 8:51 AM To: amps at contesting.com Subject: [Amps]
>>>> Vendor For Transformer Rewind
>>>> A while back I had picked up a Henry 3002A amplifier with a shorted
>>>> transformer.   I am interested in locating a vendor to re-wind the
>>>> original (or supply a replacement) that will not require butchering
>>>> the chassis, along with adding taps on the primary for 208 and 220
>>>> (club station is 208, house is 220)
>>>>
>>>> 73 W2RWJ
>>>> Martin
>>>>