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Go away Brent!!!

I was going to suggest exactly that. Do it on a Saturday morning when theres lots of people through the shop.

Had some last night as well - very very nice. The bottle is now open so I need to finish it  ;D

:ROFLMAO: :ROFLMAO: :ROFLMAO:

Excellent, excellent guide!

^^^ That looks like Harties.

For a while now Ive also been wondering

Oh boy, what did I do?

Hmmm. Neat! I'm itching to clone a set of Cremona's. I've even got all the drivers here (or at least as close as I'm likely to get).

I'm not seeing the arty part?

^^^ There's no place on the Viv to plug it in.

:facepalm:

DC offset is the offset away from 0V. This will change as the amplifier reaches it's DC operating point at temperature. DC Operating point is what you figured out a while back using LT Spice - it's the DC state the amplifier sits at when there's no signal fed to it and at thermal equilibrium...

^^^ I was referring to the DC operating point of the amplifier

^^^ Correct, mismatch on an LTP creates DC offset, provided you take the feedback from the output transistors. You compensate for this by using the pot in the circuit above. When using a DC servo the above method is not possible, so you have to inject a DC voltage (of opposite polarity) into the...

Maybe a picture will help: You may already have emitter degeneration resistors there, just scale these for the effect that the pot will introduce. You need emitter degeneration resistors to tame the open loop gain of your LTP and they are highly recommended.

You using an LTP? Easiest for setting DC offset is to add a low resistance pot at the junction of the emitter resistors. By setting this pot, you balance the dc level in you ltp.

Thanks guys, I managed to find someone who can assist because of a kind soul on the forum. I'm told I have what they call 'spaghetti' pipes for my system. The leak is rather involved because of the design and the amount of 'spaghetti' pipes that is leaking.

Thanks guys! Yebo, it seemed to work pretty well together when I was messing around.

I would love to get my hands on some of that kit. Getting surplus in from the US is possible, but the shipping kills it.