I have not tested this unit other than to turn it on and my observations include that it has a powerful hum and all the vacuum tubes appear to light up. Please see photographs as they are part of the description.

Precision Electronics S35 vintage tube amp. Good cosmetic condition and working properly. The unit has a quarter inch jack on the front which is not original. Someone else added this and it works. All tubes appear to be in good condition and light up when powered up. The item “Precision Electronics S35 vintage tube amp” is in sale since Thursday, November 26, 2020. This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “cornfieldjohnny” and is located in De Land, Illinois. This item can be shipped to United States.

• Brand: precision electronics
• Type: Tube Amplifier