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bellari mp105 mod
Old 2nd February 2007
Gear Maniac

bellari mp105 mod

The Burr Brown OPA627AP Op Amp - Will this op-amp work in/improve my bellari mp105? i've already changed the tube. the black lion modification specifies an op-amp that you can't buy any more. I'm also thinking of upgrading the pots to some that are correctly rated for the circuit - can anyone suggest some that will fit in the case/be compatible with the pcb wiring and are available to the uk?
Old 22nd June 2009
Here for the gear

anyone have the schematic handy , looking for another person
with a tube bias question for lower plate voltages

tia gboboski at
Old 2nd October 2009
Here for the gear

Check out this thread. I have listed all the parts suggested by Black Lion and where to find them. They are all still available.

black lion bellari mp 105 mod
Old 5th October 2009
The AD826 is a very dirty opamp. I stopped using them back in 1995.

Jim Williams
Audio Upgrades
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