[Boatanchors] Milliamp meter conversion

[WA5CAB at cs.com]

Since Bill will probably buy one and try it, I thought I'd better mention 
that in the RE-2/ARC-5 there is a 1:1 (single turn in primary and secondary) 
transformer.  The thermocouple is connected to the secondary, with it's output 
connected to the meter.  The transformer primary is connected between the 
transmitter and antenna (through the T/R relay in the box).

Probably John's suggestion of a diode bridge would work with this transformer 
as well.

In a message dated 11/7/2005 5:14:02 PM Central Standard Time, 
r390a.urr at gmail.com writes: 
> Just noticed that Fair Radio carries the  RE-2/BC442 antenna relay
> thermocouple ... NOS $5 ... search for ARC-7499
> 
> On 11/5/05, J. Forster <jfor at quik.com> wrote:
> >If you can find a thermal converter, as used in the BC-442 for example, 
> yes. You
> >will have to recalibrate it.
> >
> >Another way is to use a RF Current Transformer and a bridge of low forward 
> drop
> >(Schottkty or Ge) diodes.
> >
> >Depending on the frequency and current range you need, I'd look for a
> >cosmetically challenged BC-442 or the ARC-5 equivalent.
> >
> >FWIW,
> >-John
> >
> >
> >William L Howard wrote:
> >
> >>Is there any way to convert a milli amp meter to an RF Milliamp meter?
> >>
> >>Thanks,
> >>
> >>Bill Howard

Robert Downs - Houston
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