UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Mullard 5-10 amplifier

Boulevardier · 8th Jul 2019, 5:42 pm

"That bit of the pre-amp's output circuitry isn't the same as the Mullard 2-valve pre-amp circuit."

Sorry, my mistake, it is the same (I hadn't looked further into the output attenuation options given in the Mullard text). Still it might be worth checking the resistors in that pre-amp output attenuator if the OP isn't grounding the PA's input at its co-ax socket.

Mike

8th Jul 2019, 5:42 pm	#98
Boulevardier Octode Join Date: Sep 2017 Location: Bristol, UK. Posts: 1,659	Re: Mullard 5-10 amplifier "That bit of the pre-amp's output circuitry isn't the same as the Mullard 2-valve pre-amp circuit." Sorry, my mistake, it is the same (I hadn't looked further into the output attenuation options given in the Mullard text). Still it might be worth checking the resistors in that pre-amp output attenuator if the OP isn't grounding the PA's input at its co-ax socket. Mike