Knight Model 514 Mono Vacuum Tube Amplifier With Tubes -




Item History & Price

Information:
Reference Number: Avaluer:7397191Type: Tube Amplifier
Brand: Knight
Original Description:
Here is a really neat Knight vacuum tube power amplifier. It is a single channel mono amplifier that I suspect is of '50's vintage. The circuit design is simple and straightforward but is somewhat unique in that it uses twin parallel 5Y3 rectifier tubes and a quad of push/pull 6V6 output tubes. It is complete with the full complement of vintage vacuum tubes as shown. I also have the technical documentation that shows the tube layout, schematic diagram, and the component parts list.
...
I picked this up several years ago and thought that it would be the perfect platform for a home rolled tube guitar amp. I did some preliminary testing by connecting a speaker load and slowly powering up with a variac. The amplifier was unstable and drove the speaker with a 120 Hz tone. Certainly, new capacitors are needed before exploring further. The tubes themselves have not been tested, but the transformers are all suspected to be good desirable vintage iron. This project got pushed to the back of the bench as other things have taken priority, and today I am simply looking to clean out the shop some. Given the nature of this item it is being made available only as non working as-is with no returns.

I you have an interest in old tube stuff, and are looking for a straightforward little amp project then this could be just the ticket. I am also listing a VOX Tonelab that would make an excellent front end to this amp for you guitar guys out there...

Please don't hesitate to contact me if you have any questions.





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