[Mobile-Portable] 2000 Watt Inverter Modified for 65 volt Mobile RF Transistor Amplifier???

[Ray]

Be aware that typical DC to AC Inverters in that price range usually 
utilize a square wave or stepped (sometimes called modified), square 
wave switching.  It would likely be far to noisy in the RF bands to be 
useful.

Sinewave inverters for that power level are available for commercial 
applications, requiring low RFI emissions.  They usually cost a great 
deal more.
Ray, W4BYG


On 3/6/2013 3:26 PM, David wrote:
> ** On 03/06/13 10:34, David W7DBH wrote:
> **
> **> Use 2000 Watt 12VDC to 120VAC Inverter Modified for 65 volt Mobile RF
> **> Transistor Amplifier???
> **
> **> It has been my thought for a long tome that a 12VDC to 120VAC Inverter
> **> of
> **> a proper capacity could be modified for use as the power supply for RF
> **> Transistor Mobile Amplifiers.
> **
> **> You know, get it to run at ~65-70 Volts AC, ... and rectify & filter it.
> **>
> **> Seems like it might be easy-peasy for a more engineer-type Ham to do.
> **
> **> And, right now Harbor Freight has a coupon for their 2000 Watt
> **> continuous
> **> (4000 watt peak) Inverter ---for only $130!
> **
> **> Perhaps this could be a helpful way to get a KW in my/your car????
> **
> **> What do y'all think?
> **
> **    I think a 120 to 70 Volt transformer with and a rectifier and some
> ** capacitors would be a more foolproof way to do it with little efficiency
> ** loss.
> ** I did not say a regulated power supply.
> **    Unless you are competent at designing and building them you won't be
> ** competent at modify them.
>
>
> Thanks for your reply, Ron.
>
> I did think of using such a transformer. But in the old days I used to
> wind power and modulation xmfrs for myself...the iron core for a KW+
> capacity would be pretty big/heavy. BUT (idea!) maybe someone has
> experience using the new donut cores...and they could possibly be
> smaller/lighter for the same capacity?? I don't know very much about
> them...
>
> Help ! ? !
>
>


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