Vintage Tube Amp

Heathkit AA-21D Stereo Germanium Solid-State Amplifier – Fully Restored, Excellent Working Condition. This Heathkit AA-21D stereo germanium solid-state amplifier is an increasingly rare piece of vintage audio history-especially in this condition. A great opportunity to add a properly restored classic to a serious vintage audio collection. The amplifier has been completely restored internally and is in 100% working order. All electrolytic capacitors replaced with modern, high-quality audio-grade units. All carbon composition resistors replaced with modern metal-film resistors. Output power transistors replaced with a matched set of New Old Stock (NOS) germanium devices. Original germanium transistors are now quite rare and often noisy; this matched set performs exceptionally well. Original power cord replaced with a modern 3-prong grounded cord for improved safety. Current limiter installed to reduce wear on the main power switch. Dial and indicator lamps replaced. All controls, switches, and potentiometers cleaned for quiet, noise-free operation. The unit has been thoroughly cleaned but does show honest signs of age. Cabinet is structurally solid. Scratches and visible cosmetic wear are present (please see photos for details). Printed copy of the schematic included. Tested for approximately 2 hours paired with AR-3a speakers. Please feel free to reach out with any questions or to request additional photos.

Filmosound open back 179 vintage style project. Empty unfinished open back pine head. Cabinet is 16” wide x 9” tall x 7-1/8. Chassis is not included. The front control panel is removable. These are sample photos similar to the cabinet you will recieve. Please let me know how you will be finishing this cabinet so I can make the proper space allowances for vynal covering, piping and grill fabric, or a natural finish and so forth. Please note : This cabinet will need further sanding and prep work prior to a natural finish. The vintage tube amp you see in the photos is not included. Is made of 1/2” birch plywood and the control. Opening is 8-1/4″ wide x 1-3/4” and sets back 5/16″. I take a lot of pride in every cabinet I build as you will see when you receive the cabinet. I do not stock any cabinets and I make them as the order comes in. I have fabricated thousands of cabinet and sell them all over the world. I do not have all the big overhead that these big companys have, thus I pass the savings on to you. All the cabinets I build are fabricated in my shop, one at a time, out of 3/4 pine that I select and assembled using strong beautiful halfblind dovetail glued joinery. On this cabinet, the front panel is made of 1/2 baltic birch. I then router the exterior corners so you can easily install standard corner protectors if you so choice. Please note : will need more sanding and prep work prior to a natural finish. Please send me your inquire and I will try to answer it as best I can. Your cabinet will be packaged well and insured for your piece of mind. This item will be insured and packaged very well to make sure it arrives safely. I welcome any questions you may have to assist you on this cabinet. I will be more then glad to assist you in any way I can. It is not necessary to post negative feed back. Your satisfaction is very very important to me. All USA buyers must have a known address, not a PO box in the lower 48 states.