So, I know this problem has been solved to Fender's - and our - satisfaction by fiddling with dropping resistor values and by going to chassis-mount resistors. That didn't make me super happy, because I'm a feature creep.
I recently got hold of a Blues Deluxe (not a reissue) that has a big burned area around those stupid resistors. I works pretty well - the only operational issue is that the reverb doesn't work because the +16V supply is dead.
I'm going to try a pair of cheesy Zener+Bipolar linear regulators with TIP31 (NPN) and TIP32 (PNP) transistors in TO-220 packages screwed to the chassis with nylon shoulder washers and mica insulators.
The perf board is built and wired, and I'm cleaning up the board to take the new wires.
Will post how well this works.
Hot Rod series +/-16V Supplies
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Hot Rod series +/-16V Supplies
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Stevem
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Re: Hot Rod series +/-16V Supplies
Why make it more than it needs to be, just two 16 volt or so Zener's ?
That circuit has plenty of a Verb even with only 14 volts!
That circuit has plenty of a Verb even with only 14 volts!
When I die, I want to go like my Grandfather did, peacefully in his sleep.
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Not screaming like the passengers in his car!
Cutting out a man's tongue does not mean he’s a liar, but it does show that you fear the truth he might speak about you!
Re: Hot Rod series +/-16V Supplies
I want to move the heat off the board, and I'd prefer not to have those rails draw more current than they're actually using.Stevem wrote:Why make it more than it needs to be, just two 16 volt or so Zener's ?
That circuit has plenty of a Verb even with only 14 volts!