Vintage Hammond Organ Tube Reverberation Amplifier Chassis. 117 Volts AC, 60 Hz. Up for sale is a genuine vintage. Hammond H-AO-44-1 reverberation amplifier chassis. This unit was carefully removed from a fully functional, working organ. These compact, ruggedly built chassis feature high-quality vintage transformers and are highly sought after by audio enthusiasts as donor platforms for custom “lunchbox” DIY tube guitar amplifiers or standalone mono hi-fi blocks. Designed for a 3-tube configuration: Two ECL86/6GW8 triode-pentode output tubes and one EZ81/6CA4 rectifier tube. Includes the original power transformer, output transformer, input/driver terminal strip, and the multi-section aluminum filter capacitor can (Part 0-23154-0). Removed directly from a fully operational organ. The chassis is in uncleaned, as-found cosmetic condition with normal dust and patina from age.