Click to enlargeDOWNLOAD How to convert the 70W and 135W Fenders to adjustable bias

DOWNLOAD The 70 Watt and 135 Watt Fender Combo amps from the late 70's, early 80's are actually some of the best amplifiers ever made.

Their ultra-linear output transformers are a mystery to many people, but once the amp is biased correctly it really shines with huge tone, lots of frequency response and fantastic performance.

this is a pictorial layout of how to convert the bias balance pot to an adjustable bias. It will work on all the amps including the Bassman 70 and Bassman 135

Pretty easy, just takes a few minutes and really amazing results.

Note: these amps do not have rectifier tubes (can't with the duplex power supply) and are rated for either 70 watts or 135 watts. Non-Channel switching combos and heads.

Your download will appear as a DOWNLOAD button on the order confirmation page. You can also get to it, even from another computer from the ORDER STATUS PAGE. if you have trouble, please contact us with your order # and we will send you a copy



DO7605 DOWNLOAD$2.95
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