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rf output meter in amp

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rev ike
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rf output meter in amp

#103102

Post by rev ike »

does anyone know how to make a meter work in an amplifier the old one burned up before i took owner ship as i have repaired the amp now i want the meter to work i put a meter in the hole now i need to build the circuitry :?
also the new meter reads microamps 0-50 and volts 0-250 on the scale
ps. or any sites with the info! thanks
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Night Crawler
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Re: rf output meter in amp

#103106

Post by Night Crawler »

rev ike wrote:does anyone know how to make a meter work in an amplifier the old one burned up before i took owner ship as i have repaired the amp now i want the meter to work i put a meter in the hole now i need to build the circuitry :?
also the new meter reads microamps 0-50 and volts 0-250 on the scale
ps. or any sites with the info! thanks
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Use 1n914 diodes RS has them you can replace the rf choke
with a diode cathode facing the same way as the other diode
the probe is just a wire hook that to a pot about 25k run that
to 10 pf cap or you can use a gimmick cap to your ant jack.
The 25k resistor is your sensitivity adjustment.
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