I did some measurements: - Supply voltage 5.5 V - setting '40' connected - Max Uout = 4 Vtt (not bad at all) - frequency range about 50 Hz .. 20 kHz For simplicity I connected the IN- and OUT- to GND, and used IN+ as (unbalanced) input and OUT+ as output. Note: amplification can be pre-set to 10x, 20x, 30x 40x. The 'dB' in 'GAIN (dB)' as shown on the board should be just 'X'.

I did some measurements: - Supply voltage 5.5 V - setting '40' connected - Max Uout = 4 Vtt (not bad at all) - frequency range about 50 Hz .. 20 kHz For simplicity I connected the IN- and OUT- to GND, and used IN+ as (unbalanced) input and OUT+ as output. Note: amplification can be pre-set to 10x, 20x, 30x 40x. The 'dB' in 'GAIN (dB)' as shown on the board should be just 'X'.

I did some measurements: - Supply voltage 5.5 V - setting '40' connected - Max Uout = 4 Vtt (not bad at all) - frequency range about 50 Hz .. 20 kHz For simplicity I connected the IN- and OUT- to GND, and used IN+ as (unbalanced) input and OUT+ as output. Note: amplification can be pre-set to 10x, 20x, 30x 40x. The 'dB' in 'GAIN (dB)' as shown on the board should be just 'X'.

Petit preampli avec gain ajustable et mode standby.

Petit preampli avec gain ajustable et mode standby.

Petit preampli avec gain ajustable et mode standby.

segnale in uscita abbastanza pulito

segnale in uscita abbastanza pulito

segnale in uscita abbastanza pulito

Very good for guitar pre amp.

Very good for guitar pre amp.

Very good for guitar pre amp.

OK good reception

ok bonne réception

OK good reception

Works as advertised.

Works as advertised.

Works as advertised.

Very good.

Very good.

Very good.

OK

OK

OK

Рекомендую)

Рекомендую)

Рекомендую)

Pour l'instant, pas réussi à trouver les 2 v d'alimentation micro...

Pour l'instant, pas réussi à trouver les 2 v d'alimentation micro...

Pour l'instant, pas réussi à trouver les 2 v d'alimentation micro...