Vintage Tube Amp

Up for sale is an incredibly rare early tube cinema amplifier from Klangfilm, made between 1937 and 1941 in Germany. This piece of film and sound history is in quite good condition for the age. Though the original tubes are not present, the unit is otherwise all original.

VINTAGE CHALLENGER AUDIO TUBE AMPLIFIER CHA20 very rare amp. This came from a local estate and I do not know anything about it. It appears in good condition, I would assume it may need some tubes or a possible rebuild. Feel free to ask any questions you may have.

Circlotron Schematic similar to OTL.

V 6.7 tube / valve klangfilm mono amplifiers. Both amplifiers are tested and in working condition. These amplifiers are tested and in good working condition. They are old and are not (fully) serviced.

Are: 2X EL84 ; 1X 12AX7 ; 1X 12AU7 ; 1X EF86 ; 1X GZ34. Two Mono Power amplifier. Output Power: 18 Watt for each amplifier. Ultra Rare in pair!

Pair of Vintage DuKane 3A55 Step-Up Mic Transformers, Tube Pre-Amp. Condition is as pictured.

This vintage Heathkit W5M amplifier tube cover cage. The cage is made specifically for the W5M model and comes with the Heathkit name badge, The cage is in nice shape for its age and all 4 mounting pins are present. I’ve included photos to show the condition and details of the cage.

Both are military-grade surplus and bear the DOD Acceptance Stamp. The outer 4 corner mounting holes are on 2.375″ x 1.5″ centers. See all photos for Specs / Physical Condition.