FERNANDES RV-20 Guitar Amplifier. Thank you for viewing. This is a FERNANDES RV-20 guitar amplifier from the 1980s. It's a product from about 40 years ago, but I think it's in good condition. There are no noticeable rust or tears on the exterior, but there is a stain on the top (see photo 7). Some of the lettering on the control panel is faded or missing. Electrically, there is little scratchiness and I think there are no problems. Since it is an old product, please understand that no returns or refunds are accepted after the transaction. Shipping may be delayed by a few days due to work commitments. Thank you for your understanding. - Brand: FERNANDES - Model: RV-20 - Country of Manufacture: Japan - Input Voltage: 100V - Input Power: 15W