For sale John East U-Retro Preamp

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An awesome preamp with the ultimate in tonal flexibility!

Controls are friendlier to use than the description indicates. Three black stack knobs included.

VOLUME & BLEND (Knob stack nearest the neck pickup)

VOLUME
The upper knob is the Volume which has two sections under the same knob. A high impedance for the passive path and a low impedance section is used for the active circuitry. When used active, this knob has active circuitry after it so that the feed to your amplifier is a low impedance drive.

BLEND & PICKUPS SWITCH
The lower outer knob is the Blend balance for the pickups. Turn it fully clockwise for the neck pickup alone and fully anti-clockwise for the bridge pickup. The midway position, which has an indent, gives an equal mix of both pickups. The balance between the pickups is continuously variable with progressive level compensation towards the single pickup settings. Important:- The Pickups switch (by the blend) must be set pointing towards the jack for the Blend to function.

BASS & TREBLE (The middle knob stack)

TREBLE (+12dB @ 3 kHz, -12dB @ 1kHz)
The upper knob is the Treble control with boost and cut. The central 'flat' position is indented. The cut settings work on lower frequencies compared to boost to give a deeper sound when the top is rolled off.

BRIGHT (+8dB @ 7kHz)
Pull the Treble knob for the Bright setting.

BASS (+15dB @ 50Hz)
The lower outer knob is the boost only Bass control. The frequency band of boost gets progressively lower as the boost is increased. An indent midway is included to aid the setting of this control.

MID LEVEL & FREQUENCY (The knob stack nearest the jack)

BOOST/CUT (+/- 12dB)
The upper knob controls the amount of Mid boost or cut at frequencies according to the setting of the Frequency knob. The midway indent is the 'flat' position.

FREQUENCY (150Hz - 3kHz)
The lower outer knob is continuously variable and sets the Mid frequencies for boost or cut.

ACTIVE PASSIVE SWITCH (By the jack)
Towards the jack for active, the opposite for passive

This one came out of a R Bass 6 that was wired with two extra switches for series/parallel, and another pot for a passive tone, I believe, so appears to have been upgraded to a Deluxe version.
(A friend sold this to me for a project that didn't materialize).

$240, Price includes US Postal shipping in the CONUSA.
These sell for $315 new.

Contact for pix. http://www.east-uk.com/jrhome.htm

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Astroman
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