The Fender Pro Amp, first named Professional from 1946 to 1948, was aimed at performing guitar players and vocalists and put out a whopping 15 watts. From 1946 to mid 1953, it used a tweed-covered ‘TV Front’ cabinet as seen here. The Pro amp was discontinued in 1965 and became the Pro Reverb amp, following the pattern Fender was using with other non-reverb amps.
Here we’re looking at a Fender Pro Amp dating to 1952 with the 5B5 circuit. The 5B5 circuit was used from 1951 to 1954 and the circuit diagram can be viewed here. The amp uses a pair of 6L6 power tubes, 6SC7 pre-amp tubes, and a 5UG4 rectifier tube. At the time this amp was built, power had risen from 15 watts to around 18, ultimately getting to 25 watts before the amp was heavily re-designed for 1960. The 15 inch speaker adds huge presence and bass response – these are fantastic sounding amps.
These amps have four inputs – two marked Instrument and two marked Microphone. Controls are a Tone control and two Volume controls, for the Instrument and Microphone inputs. The control panel also features a pilot light, on/off switch, and fuse holder.
This Fender Pro amp is in good working order, but is not totally original; the cabinet was apparently re-tweeded and the grille cloth replaced many years ago and the 15 inch Jensen P15N speaker, which dates to 1955, has been re-coned. The output transformer dates to the very early 1950’s and extra support brackets have been added. It’s currently loaded with a Groove Tubes tube set.
The item shown here has sold and is no longer available. We are presenting it for historical and reference purposes. To view items currently available for sale, please visit our ecommerce site at https://shop.12fret.com. For permission to re-use any of these materials, please contact us at info@12fret.com
- Model: Pro Amp
- Year: 1952 | This is an approximate year
- Class: Vintage
- Serial Number: 2994, built during 1952 in Fullerton, CA
- Country of Origin: USA
- Condition: Good
- Date Posted: 16/05/2021
- This item has sold
- Weight: 40.392lbs 18.36kgs
