Intact Audio

Sounds good - I'm glad you found the issue quickly!

I'll post when I've made progress too, I'm tied up with other jobs at the moment

Thank you! Some on its way now. I've also ordered some RCA sockets with external securing nuts and a ground post, so should be ready to start installation very soon. I'm planning to make a couple of hoop clamps like the one posted above, with the intention of mounting both them and some feet through...

Where did you get the copper tape from? I'm waiting for my case to arrive, but may as well get the other components on order too...

Thanks, Nick

The BUD case looks like a good find - right size and 16ga steel!

I've ordered one too

Looking at the datasheet for the 1458C4, the top and bottom covers are steel, but the front and back plates are aluminium. I'm guessing that is not appropriate if we are looking for all around magnetic screening, so I'm now searching again. I may go back to the 1441-20 as it's all steel, albeit 20 g...

The Hammond case I was talking about is actually PN 1441-20 - dunno where that choke PN came from ...

The 1458C4 looks like a good fit with no modification, so that is probably the better choice anyway.

The best one I've found so far is another Hammond that I found on Parts Connexion. I can't post the url, but its code is HAMMOND-55477 it's too long (17"), but the format is good and I'm happy that I could do a neat job of shortening it to say 8", giving final external dims of 8 x 4 x 3 St...

Having checked with other users of IOs, they do apparently like to be loaded close to or within the recommended range, so ideally I'd like to go with 1:100. That way, I can try the original 47k input with the cap removed to apply a nominal 4.7 ohm load without too much capacitance effect and without...

Hi Dave, The phono preamp is an older Audio Innovations P2, which has loading in the form of a 47 kohm resistor and a 51 pF cap in parallel on the input to the first tube (ECC83 half), so I guess it's likely to be fairly close to your estimate of the 1:100 case. The cart is recommended to be given a...

Thanks for your original write-up, Dave - very informative and helpful! I'm looking for a SUT (pair) to match a low-impedance and very low o/p cartridge (Audio Note IO) to a MM phono stage. Specs are: Cart internal impedance 1 ohm, matching impedance 3-4 ohms, output 0.04 mV; Phono amp input impedan...