Mono (a single unit) Fairchild Model 275 Vacuum Tube Amplifier. Early Serial #152. This listing is for a Mono/Single Fairchild Model 275 Tube Amplifier ONLY. Dimensions 12 1/4 x 8 x 7 1/4. Net Weight 32.6 lbs/14.8kg. Tubes compliment in the amp are 1 x 6AB4, 1 x 12AV7, 2 x 6550/KT88 and 2 x 5V4. Unfortunately the amplifier does not come with any tubes. Bought it the way it is. Transformers are guarantee good. I borrowed some tubes and just used a variac to power it up until 90VAC. Passes signal and sound does come out of the amplifier. That is the extent of my testing of this amp. It will need more capacitors and resistors upgrade and replacements before it can be a fully function amp. Cosmetically the amp is in above average condition with paint flaking on the chassis which is typical. Underneath the chassis is painted green. Thank You and Good luck : ) : )