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

vampyretim · 10th Jun 2019, 9:10 pm

Hi all,

I'm restoring a Mullard 5-10 amp one with a lovely Partridge output transformer.
I've re-capped it and all voltages are what they should be. She sounds amazing the D.C coupling is producing lovely rich bass but she's humming quite a bit.
I was wondering if a filter choke might improve things? If I could get the hum down I would go as far to say that this is the best amplifier that I've ever heard.
I have a couple of old radios with a filter choke, do you guys think that I could repurpose one perhaps?

If not does anyone recommend anywhere that I could get one?

I've really fallen in love with this gorgeous little amp!

Thanks.

10th Jun 2019, 9:10 pm	#1
vampyretim Heptode Join Date: Aug 2011 Location: Bristol, UK. Posts: 538	Mullard 5-10 amplifier Hi all, I'm restoring a Mullard 5-10 amp one with a lovely Partridge output transformer. I've re-capped it and all voltages are what they should be. She sounds amazing the D.C coupling is producing lovely rich bass but she's humming quite a bit. I was wondering if a filter choke might improve things? If I could get the hum down I would go as far to say that this is the best amplifier that I've ever heard. I have a couple of old radios with a filter choke, do you guys think that I could repurpose one perhaps? If not does anyone recommend anywhere that I could get one? I've really fallen in love with this gorgeous little amp! Thanks. Attached Thumbnails