waldo041 wrote:there is a 220k resistor(r105) to ground hanging off the wiper of the BASS pot in the tone stack, REMOVE it!
waldo041 wrote:i actually did this "waldo mod" in my HRdx long ago, and it gets rid of all that unwanted bass! allowed me to actually use the bass control of that amp.
removing it means , eliminate it, snip the ends of the resistor or desolder it. NO jumper needed.
marcuskeyser wrote:do I need to discharge the caps for this or is it safe to just snip ????
marcuskeyser wrote:also ...
Strummin ... do you like the JJ's ??? The speakers are 8ohm (4-10" Special Design Eminence® 8 ohm, 30 watt Speakers)
Waldo ... thanx for the tip !! btw ... kenny's tribute 2.0 is just about done!!! We'll need a WALDO BUFFER sponsorship banner
From our (http://thetubestore.com/jan6l.html) review of the JAN-Philips 6L6-WGB tube: "These puppies rock and would sound great in any setup where you want punch, clear highs and a tight bottom. [...] Very nice harmonic content, rich and deep. These bottles rock and would sound great in any setup where you want punch, clear highs and a tight bottom."
Here's an interesting side note: the JAN-Philips 6L6WGB tube has the identical internal construction as the Philips 7581A tube (the industrial version of the 6L6GC tube). The difference between these two tubes is only the size of the glass bottle. Although you may not get a 7581A's 35 watts out of the 6L6WGB, you can certainly get 30 watts without any problems. These are super durable tubes made for the US military in the mid '80's. Their specs are not the same as earlier 5881 and 6L6WGB specs from the 1960's. So to get to the point, the JAN-Philips 6L6WGB tube will work perfectly in any amp requiring a 6L6GC tube. Do not worry about plate voltages over 400V with this puppy.
DeadAheadNH wrote:unless I get critical feedback from anyone on the above outlined plan I'll report the results on these mods when I'm done.
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