{Collins} Re: Heath Power supply



Me too.  I second the motion.  Kershoff's law.  (didn't look up correct 
spelling, but all will recognize it)  If 11 amps on 12 volts, then 5.5 
amps on 24V.    Something wasn't connected if you measured 3 amps.   Bob

Robert & Linda McGraw K4TAX wrote:
> I always thought that if one doubles the voltage the current drops by 1/2. 
> Thus at 12V if the current is 11 amps then at 24V the current is 5.5A. 
> Where does 3A fall in place?
>
> 73
> Bob, K4TAX
> ----- Original Message ----- 
> From: "Charlie" <pincon@xxxxxxxxx>
> To: <collins@xxxxxxxxxxxxx>
> Sent: Tuesday, August 08, 2006 12:36 PM
> Subject: {Collins} Re: Heath Power supply
>
>
>   
>> Wire a 12VAC at 3 amp filament transformer in series with the existing 12 
>> V
>> output from the Heath supply and wire the KWM-2 plug for 24 V filament
>> operation.   I mounted the transformer under the Heath power supply 
>> chassis
>> by moving a couple components to make room.  That way you don't overload 
>> the
>> heath filament output which is rated for around 8 amps.  (The KWM-3 needs 
>> 11
>> amps at 12 V but less than 3 ant 24 V.)
>>
>> 73 Charlie k3ICH
>>
>>
>> ----- Original Message ----- 
>> From: <johnbess@xxxxxxxxxxxx>
>> To: <kc21130@xxxxxxxxxxx>; <collins@xxxxxxxxxxxxx>
>> Sent: Tuesday, August 08, 2006 3:03 AM
>> Subject: {Collins} Re: Heath Power supply
>>
>>
>>     
>>> Carl and all,
>>>
>>> The problem of operating the KWM-2 or A from the Heath supply is not the
>>> B+ but the filament current the Heath supply is designed to supply. The
>>> KWM-2(A) is more than the supply was designed for. (Check it out)
>>>
>>> The Heath supply will work great with any 32S transmitter though.
>>>
>>> I hope this helps,
>>>
>>> John, WA5VVT, CCA Board member and Collins Radio service for over 35
>>> years.
>>>
>>> -----Original Message-----
>>> From: Keith Carlsen <kc21130@xxxxxxxxxxx>
>>> To: collins@xxxxxxxxxxxxx
>>> Sent: Tue, 08 Aug 2006 02:09:35 +0000
>>> Subject: {Collins} Re: Heath Power supply
>>>       
>>>> On the Heath remailer there was some info about using a HP 23 power 
>>>> suppl=
>>>> y
>>>> on a KWM-2 .>Carl W9TAD
>>>>         
>>> I would think the Main B+ of the S-line gear would work fine on either 
>>> 250
>>> or 300 volts but to be perfectly safe I would choose the 250 volt 
>>> setting.
>>> I
>>> can't imagine any harm but performance could be slightly affected
>>> especially
>>> on transmit. If you have a service monitor (you should, or be a member of
>>> a
>>> club that does) you could run a proof of performance test this way.
>>>
>>>
>>> Sponsored by the Collins Collectors Association
>>> http://www.collinsradio.org
>>> Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
>>> Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
>>> 1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
>>> Sun AM Net: 29.050 Mc-1200 Central
>>>
>>>       
>> Sponsored by the Collins Collectors Association 
>> http://www.collinsradio.org
>> Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
>> Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
>> 1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
>> Sun AM Net: 29.050 Mc-1200 Central
>>
>>     
>
>
> Sponsored by the Collins Collectors Association http://www.collinsradio.org
> Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
> Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
> 1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
> Sun AM Net: 29.050 Mc-1200 Central
>
>
>
>   
Sponsored by the Collins Collectors Association http://www.collinsradio.org
Nets: Tues: 3.805 Mc-2000 Central / Thur: 3.875 Mc-2000 Central
Fri: 3.895 Mc-2000 Pacific / Sun: 14.263 Mc-2000 UTC
1st Wed (of the month) AM Net 3.880 Mc-2000 local (ET, CT, MT, PT)
Sun AM Net: 29.050 Mc-1200 Central






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