If the LL2758 heater windings were rated for 3A and it was just a matter of adding the right diodes, I'd say it's worth a try. But we're talking about adding an additional transformer to the amplifier to accomplish this, which is the bigger problem. The amp is not laid out to accommodate it...

Keep in mind this is the B+ rectifier, meaning any noise introduced by those diodes is now in the B+ supply. I haven't tested this as there are better solutions, but I wouldn't recommend it for a rectifier filament winding. For a cathode heater, it matters much less and is probably fine.

The value of the resistors in spec'd to reach 5V from the 6V windings of the Lundahl mains transformer with the rectifiers drawing 2A of current. If you use the same value of resistor for a 3A rectifier, you are going to get an addition 50% voltage drop across them due to the additional 1A of...

So sharp in fact, bodily dismemberment is a real risk when transporting it.

Got a four day weekend off, doing some listening with my beloved Atrium Open this morning. With my chassis maker on hiatus and the Aegis project(s) done, first time in a while I'm not actively working on an amplifier (although, I really want to be). Trying to use the time to get back in touch...

Yeah Aegis is technically a SET amp even though it uses a different output stage than most other SET amps. SET is a generic term, but it is generally used to describe single-ended triode amplifiers that are transformer coupled (even though the generic name “single-ended triode” would also...

Despite their small size, they're actually 6L6 types, so they can take a lot of bias.

I can add a field to say which rectifiers are good to use for the lower powered stuff too. Also gives me an excuse to buy more tubes for research purposes 😎

Yeah it probably would, I'll look at putting it together, good idea.

Not really, no, I'd just use whatever you think sounds good for each one individually.

Stock is a Sovtek GZ34 / 5AR4. I'll make a little info guide in my reserved post on the first page and link it tomorrow with rectifier info. Most rectifiers other than GZ34 / 5AR4 should be okay with low power tubes. GZ32 / 5V4 is also lowish voltage drop so the tubes could still be biased on...

I believe plate dissipation is 23W, so you don't have to limit to 5R4, can use any rectifier. Anything less than 13-14W have to consider what rectifier you're going to use.

I have those! Haven't listened to them in a long, long time though.

Those Mullards look awesome, I'm a little jealous lol.

TRS has the lowest output impedance on Aegis so that's the one you'd want to use with DCA headphones. Could try XLR low setting with 11ohms output impedance, might be okay but damping ratio is 2:1.