Lowell:
Can you give me more info on that Jet Stream Supply?
Is it linear, or switching?
What is the model number?
Does it put out 48 amps continuous, or surge?
I had looked at the Astron RS50A, but it is so big and heavy, and costs
approximately $240, which is more than I was planning for a power supply.
Again, whatever info you have on it would be appreciated.
73 from Tom Behler: KB8TYJ
----- Original Message -----
From: "Lowell Miller" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Saturday, June 02, 2012 11:12 AM
Subject: Re: Could it be time to replace My old trusty Astron RS35 Power
Supply?
> Hello Tom,
> Sorry to hear about your trusted power supply!
> I have a Jet Stream supply I bought just last year which puts out 48 AMPS
> and has performed very well running two rigs at one time: my TS590 and the
> TMD710A.
> It is light weight and noise free in the RF department.
> It costs less than $150.00 from R and L Electronics.
> I would give it a hard look if I were you.
> Just a suggestion!
> See you this afternoon on the 40 meter net I hope.
> 73
> Lowell W8QIY
> ----- Original Message -----
> From: "Tom Behler" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Friday, June 01, 2012 9:54 PM
> Subject: Could it be time to replace My old trusty Astron RS35 Power
> Supply?
>
>
>> Hi, folks.
>>
>> I know we have had similar discussions on the list before, but tonight I
>> feel I have discovered something that may be of interest to others.
>>
>> Basically, over the past few days, I have found that even when
>> transmitting
>> on the resonant frequency of an antenna with a 1.0 to 1 SWR, my TS590
>> seems
>> to fold back to an output power of approximately 50 watts. These power
>> readings have been obtained from both the meter on the TS590, and my TW1
>> talking watt meter.
>>
>> I thoroughly checked all coax and DC power connections, but everything
>> seemed ok.
>>
>> I measured the power supply's voltage first with no load, and it was
>> 13.35
>> volts consistently. However, when I transmitted in RTTY mode with 100
>> watts, thereby putting a full load into the circuit, the DC voltage
>> readings
>> started fluctuating all over the place. They ranged from a high of 10
>> volts, to as low as 2 or 3 volts. Then, on a whim, I connected the
>> Kenwood
>> PS53 power supply that I got with the Kenwood 570 I purchased from the
>> estate sale in our area, and the output power readings were a very solid
>> 100
>> watts, even when the rig was keyed down continuously for several minutes.
>>
>> I know there is a way to adjust the voltage in the RS35, but with the
>> foldback of the ts590, and the fluctuations in voltage readings, I'm now
>> getting a bit nervous about using the RS35 as my main supply.
>>
>> Does anyone have any thoughts or similar experiences to report?
>>
>> If I do need to be in the market for a new power supply, I have several
>> requirements:
>>
>> 1. I'd like it to be a linear supply
>>
>> 2. I'd like it to be something that could deliver at least 40 amps
>> continuously through my rigrunner, because I sometimes run the TS590, my
>> TMV71A, and my TMV7A packet set-up simultaneously.
>>
>> If anyone has specific suggestions regarding a supply that I might wish
>> to
>> consider, please let me know.
>>
>> 73 from Tom Behler: KB8TYJ
>>
>>
>> -----
>> No virus found in this message.
>> Checked by AVG - www.avg.com
>> Version: 2012.0.2178 / Virus Database: 2425/5040 - Release Date: 06/02/12
>>
>
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