plugging in the right 1/4” input jack powers up the pedal and begins to drain the battery whether or not the LED
is on. So make sure the right input jack is disconnected when not in use to preserve battery life. If this is done
you will get many hours of use out of a single battery.
Any standard 9 volt negative center pedal power supply will also work with this pedal. However this is a
positive ground effect and must have its own dedicated power supply. It cannot use a supply that also powers
other pedals. Also when using an external power supply put a piece of tape around the battery clip terminals to
avoid the rare possibility of internal shorting. An external power supply may also make the pedal slightly
noisier due to power supply noise.
About transistors:
The 3 Germanium transistors in this pedal have been carefully chosen and auditioned for correct gain and low
noise. They are socketed which allows me to be remove them so I can to tune the pedal. USER REMOVAL OF
THESE TRANSISTORS VOIDS THE WARRANTY. The order and selection of these transistors is essential to
proper operation so I cannot honor the warranty for those who wish to experiment with different transistors.
Germanium transistors are temperature sensitive. Do not place the pedal on top of a hot amp like an AC-30 it
may throw the bias setting off temporarily.
5 year limited warranty terms:
Throbak Electronics will repair or replace any Throbak effect that fails to operate due to defect in
manufacturing within 5 years of original purchase date. Damage due to battery leakage, neglect, abuse, normal
wear or cosmetic damage is not covered under the terms of the warranty. User replacement of transistors or
replacement of other internal components voids the warranty. Because of factors beyond Throbak Electronics
control we cannot be responsible for any alleged or actual damage caused by Throbak Electronics products to
buyers equipment.
Warranty applies only to products owned by the original purchaser.
Purchaser is responsible for paying shipping charges on warranty claims.
Thanks again and check out the full line of ThroBak effects and guitar pickups.
Jon Gundry
Throbak Electronics is a division of Gundry Media Inc. Grand Rapids, MI 49503
