Masco MA25PN Tube Guitar PA Harp Vintage Conversion Amplifier
Thursday, March 31st, 2022
Late 1940s Masco MA-25PN. Originally a Public Address System. Now re-purposed into a fully restored amplifier. All components have been tested/replaced if out of spec, and ran this amp wide open for hours. Tubes have all been tested and ran for audio/instrument clarity. 30 Watts Class A. Original Output, Replaced Power with Transformer from Era. Sounds amazing, tuned, ready to inspire! Original Knobs and Paint. Amp has been altered from it’s original wiring circuit. We jumper all channels as one. This mod allows you complete access to all of the channels if you like, or just one at a time. They all sound slightly different. 6J7 Preamp (4), one for each channel. Russian 6SL7 Phase (1), bass and treble controls. 5U4 Single Rectified (1). New grounded cord and plug. 1/4″ stereo input, 1/4″ mono outputs in 4,8,16, ohm operation. Can only use one output at a time. Thank you for looking! This item is in the category “Consumer Electronics\Vintage Electronics\Vintage Audio & Video\Vintage Amplifiers & Tube Amps”. The seller is “moobfuuter” and is located in this country: US. This item can be shipped to United States.
- Brand: Masco
- Type: Tube Amplifier
- Modification Description: Conversion from Original Circuit to Guitar Amplifier Circuit
- Custom Bundle: No
- Model: Masco MA25PN
- Country/Region of Manufacture: United States
- Modified Item: Yes