Steve, thanks much.  According to your description I have a RS-35.  It has 
24 fins and 4 transisters and is just like new.
----- Original Message ----- 
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Tuesday, February 22, 2011 3:02 PM
Subject: Re: Astron power supply


> Fred,
>
> In my last post i referred to the larger supply first as a 35 amp, then
> as a 30 amp.   It is a rs-35, which i think is rated at 30 amps constant
> and 35 surge.   The smaller one is rs-20 which is 17 amps constant and
> 20 amps surge.
>
> They also have larger and smaller supplies, but these are the 2 I have
> here.   Hope you at least got a rs-35 which will give you all the power
> you will likely need.
>
> 73, Steve KW3A
>
> On 2/22/2011 2:53 PM, Steve Forst wrote:
>> Fred,
>>
>> I do have a 20 amp and a 35 amp in the shack.   The 20 amp has 12 fins
>> on the rear heat sink and 2 transistors mounted in the gaps between the
>> fins.
>>
>> The 30 amp has 24 fins and 4 transistors  in the gaps between the fins.
>>
>> There might be a better way to tell, but hope this helps.
>>
>> 73, Steve KW3A
>>
>> On 2/22/2011 2:31 PM, Fred Adams wrote:
>>> I recently picked up a large Astron power supply but the owner had no
>>> paperwork on it.  Do any of you guys know if there is any way to tell 
>>> the
>>> size?  I believe it is a 30 or 35 amp supply but I do not know for sure.
>>> Thanks much,
>>>
>>>
>>>
>>> Best wishes,
>>>
>>>
>>> FRED C. ADAMS W4HC
>>> THE HOUR IS LATE AND
>>> THE NIGHT IS FAR SPENT
>>>
>>