UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Mullard 5-20 high DC Voltages

Diabolical Artificer · 2nd Aug 2020, 8:36 am

Glad you got there in the end, it's been a bit of a trek, I've been following your journey over on DiyAudio. I think the OPT's you used made this a more challenging build, using a different OPT to that which Mullard used, especially if it has a few quirks, means you probably had to tweak the circuit a bit. A good beefy LTP using a CCS is capable of driving recalcitrant OP stages cleanly, at least that's what I've found.

Anyhoo, glad it all worked out in the end and your enjoying your amp, you'll probably find you might have to go back and tweak the odd issue whilst it's all bedding in, it never ends : )

Andy.

2nd Aug 2020, 8:36 am	#119
Diabolical Artificer Dekatron Join Date: Jul 2009 Location: Sleaford, Lincs. UK. Posts: 7,667	Re: Mullard 5-20 high DC Voltages Glad you got there in the end, it's been a bit of a trek, I've been following your journey over on DiyAudio. I think the OPT's you used made this a more challenging build, using a different OPT to that which Mullard used, especially if it has a few quirks, means you probably had to tweak the circuit a bit. A good beefy LTP using a CCS is capable of driving recalcitrant OP stages cleanly, at least that's what I've found. Anyhoo, glad it all worked out in the end and your enjoying your amp, you'll probably find you might have to go back and tweak the odd issue whilst it's all bedding in, it never ends : ) Andy. __________________ Curiosity hasn't killed this cat...so far.