This germanium Pre-Amp boost is a reproduction of a rare 1950's Hofner Preamp unit. It was designed to be used in the auxiliary input of the typical 1950's home's stereo hifi console or tape recorder (all which would be vacuum tube based) and allow a guitar to be plugged in and amplified. Effectively making your home radio into a guitar amplifier. The only modifications to the circuit are a volume control and to remove the shock protection capacitor. That capacitor was in place to eliminate the possibility of being shocked by a "hot chassis" radio. In pedal form it is not needed, so we bypassed that section. the Volume control allows you to dial in the amount of boost this circuit provides.

As a pedal this circuit is a fantastic clean or dirty boost. Into a clean amp and lower volumes, it is a germanium loud button! It just takes your signal and makes it quite a bit louder and sweeter. Into a dirty amp, it pushes the signal into further overdrive. With the volume control ay max into a dirty amp, it sounds like a vintage tweed amp on the verge of imploding into itself.

Each Pre-Amp features

Point-to-point thru-hole construction

Vintage 1960's Philips AC107 transistor

Vintage CTS, Stackpole, Clarostat potentiometer

NOS Philips electrolytic capacitors

1960's Wima TFF capacitor

NOS Allen-Bradley carbon comp resistors

Housed in a hammertone gray 125b enclosure with Fairchild reproduction knob and dial plate

Product specs

FAQs

What kind of power supply does the R2R Electric Pre-Amp require?

The R2R Electric Pre-Amp requires a standard 9V DC power supply, which is typical for many guitar pedals. Ensure your power supply matches these specifications to avoid damage.

How does the R2R Electric Pre-Amp affect my guitar tone?

The R2R Electric Pre-Amp boosts your signal, enhancing clarity and presence without altering the natural tone of your guitar. It's designed to provide a clean, transparent boost suitable for various musical styles.

Is the R2R Electric Pre-Amp suitable for use with both electric and acoustic guitars?

Yes, the R2R Electric Pre-Amp can be used with both electric and acoustic guitars, offering a clean boost that enhances the instrument's natural sound.

Does the R2R Electric Pre-Amp work well with other effects pedals?

The R2R Electric Pre-Amp is designed to integrate seamlessly with other effects pedals, providing a clean boost that can enhance the effectiveness of subsequent effects in your signal chain.