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Schematics
and Construction Information
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Universal LED Gain Reduction Meter
- Bare
Board. Shown Assembled with User-Supplied Blue LEDs and Panel
This
is the Gain Reduction Meter circuit board for
the Pico Compressor and GSSL design featured in the Prodigy Pro Forum.
It uses an LM3914 and TL072 support circuitry to provide a ten LED Gain
Reduction display for the companion Pico Compressor or GSSL Clone.
The "GR Meter II" features switchable full scale
indications of 5 dB, 10 dB or 20 dB gain reduction. It can be used with
the -130 mV per 20dB gain reduction scaling of the Pico Compressor or
the -120 mV per 20dB scaling of the GSSL depending on the resistors
used. Other
full scale values are also possible.
This is a bare PC board and does not include any components. Most all of the passive
components can be purchased from Mouser Electronics or your local vendor.
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Bare PC Board
$6.50 US
PayPal accepted.
Does not include shipping or sales tax.
Prices are in US dollars.
To purchase or contact us, e-mail
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