Mod Kits for your Blues Junior
All the parts you need for a great-sounding Blues Junior, selected for quality and performance.
Prices and photos coming soon. Email me in the meantime.
Not technically inclined? I can modify your Blues Junior for you. Email me for prices.
Green Board Blues Junior
Simple Adjustable Bias
I also have a new adjustable bias that adjusts both tubes; it doesn’t allow individual balancing. $7 and only two holes to drill. Since you buy matched tubes anyway, this is probably your best choice. This is what I do to all BJrs that I mod unless the customer wants balanceable bias.
Metal Input Jack
You can replace the plastic input jack with an all-metal Switchcraft jack (the industry standard). It comes prewired with Mogami low-noise coaxial cable and includes two Switchcraft isolation washers (one flat, one shoulder washer) to eliminate the possibility of ground loop hum. Requires removing the circuit board and desoldering the old jack with desoldering braid or a solder sucker pump. $10.
Power Supply Stiffening
An additional 47uF 450V capacitor doubles the capacitance in the first filter stage, which halves the ripple going to the power tubes, which reduces hum. It increases reserve power for solid bass and incisive picking, and helps to compensate for the undersized output transformer. $6
Clean Boost Module
This is a one-inch square board that connects to your circuit board (held by one of the mounting screws) and connects to the circuit board in three places. All connections are from the top of the board; no need to remove it. It gives approximately the same increase in volume as the Fat switch, but without the increase in bass. It makes clean or distorted tones louder, and when used in conjunction with the Fat switch is about twice as loud. It does not increase distortion. It can be wired to go on with the Fat switch, on a pull-up with the presence control, or, if you wish, on its own footswitch: $40. See http://machrone.home.comcast.net/bjr/cleanboost.htm.
Too easy to be a kit! The TwinStack mod greatly improves tone stack flexibility. http://machrone.home.comcast.net/bjr/twinstack.htm. This has been getting rave reviews on the Fender Discussion Pages.
Preamp Boost Mod
Coming soon. Brighter brights, cleaner cleans, more headroom. Inexpensive, Inquire.
Priority mail shipping is $4.05. Email me to place an order or for further inquiries. See the Tone Summary page for more information on what does what and mods that go beyond these kits.
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Questions? Comments? Email me.