UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Suitable panel meters for use as a "VU" style meter on amplifier

Diabolical Artificer · 13th May 2021, 6:23 am

If you have one level your fine, then the meter is only showing peaks but if you take a signal that is amplified from 0v to whatever RMS then fitting this range onto the meter face can be problematic.My amps had a gain of over 26dB when on full whack the meter needles were slap up against the stops. That said how many folk play music at full whack? Most amps run at about 1w for normal listening.

If your intended ampis high gain a series resistor can be put before the meter with a little SW to shunt it out if the amp is ever used in party mode.

Andy.

13th May 2021, 6:23 am	#21
Diabolical Artificer Dekatron Join Date: Jul 2009 Location: Sleaford, Lincs. UK. Posts: 7,667	Re: Suitable panel meters for use as a "VU" style meter on amplifier If you have one level your fine, then the meter is only showing peaks but if you take a signal that is amplified from 0v to whatever RMS then fitting this range onto the meter face can be problematic.My amps had a gain of over 26dB when on full whack the meter needles were slap up against the stops. That said how many folk play music at full whack? Most amps run at about 1w for normal listening. If your intended ampis high gain a series resistor can be put before the meter with a little SW to shunt it out if the amp is ever used in party mode. Andy. __________________ Curiosity hasn't killed this cat...so far.