How much current for small linear
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How much current for small linear
Hello all,
Just wondered what sort of current a small 25/30 watt amp will draw ? I have a 5/7 amp power supply and wondered if it would power both radio and amp.
Thanks all
Just wondered what sort of current a small 25/30 watt amp will draw ? I have a 5/7 amp power supply and wondered if it would power both radio and amp.
Thanks all
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Re: How much current for small linear
3 watts is around 1 amp so 30 will be around 10 amps (roughly speaking).
- Mudslinger
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Re: How much current for small linear
I am going to say about 5 Amps, as my KL-203p which was 100 watts would pull 16A at full tilt.
That was a Mosfet too so probably not quite as efficient as a regular power transistor type.
That was a Mosfet too so probably not quite as efficient as a regular power transistor type.
Mudslinger - Simon
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Re: How much current for small linear
5/7 amps is cutting it fine, 10/12 Would be better.
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Re: How much current for small linear
Use the 5-7 for the amp and another say 3-5amp for the radio separately if you don't want to buy a big power supply, but have 2 smaller ones
- Transwarp
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Re: How much current for small linear
Rough guide is 2 times for what's needed, example being: 25watts is around 6amps. I'll assume the little amp will get 4 watts from a radio shoved into it so another couple of amps, in tx mode mode then looking around 8amps total at the top end - a 10/12amp psu for it and the radio therefore should be ok but these days 25/30amp psu's are a better investment or a good one can be made from a computer psu, however if prefer 'old school' transformer type then best to buy one imo. Get a good psu and keep it, folk change their radios but should always hang on to a good psu investment.
Or as another member has said have two smaller psu's.
Or as another member has said have two smaller psu's.
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Re: How much current for small linear
Thanks everyone, I have a KL203 which I used to use mobile and for a time with a PC power supply, I live out in the sticks and cannot put anything major up as an antenna so will need a little help, I'm setting the radio up today to se if I hear anyone about.
- Mudslinger
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Re: How much current for small linear
Making a stealth antenna can add to the fun, a good option is a T2LT coaxial dipole which can easily be hidden in a tree.
here is how to make one, also whilst you are there check out some of Gary's other videos.
https://www.youtube.com/watch?v=Gf8xeq77kkI&t=373s
here is how to make one, also whilst you are there check out some of Gary's other videos.
https://www.youtube.com/watch?v=Gf8xeq77kkI&t=373s
Mudslinger - Simon
26TM274
26CT612
There is no such thing as a Fidelity 1000 which is too good to scrap.
26TM274
26CT612
There is no such thing as a Fidelity 1000 which is too good to scrap.
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- Regular
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- Joined: 27 Jan 2016, 20:15
Re: How much current for small linear
The radio has been on continuous now on 19 and as yet I haven't heard anything at all ! I'm in South Shropshire.
I've been using a coaxial Dipole for 2 and 6 meters for a number of years it does work well and can be made very covert.
I've been using a coaxial Dipole for 2 and 6 meters for a number of years it does work well and can be made very covert.