spritzer

That could be done... When I'm "done" with this amp phase I'll build some transducers just for kicks. How about wire stators for an ESP?

That's why I always wanted to see a picture of the Purtscheller phones, to see how he would make a Float in a wooden housing... It would also be cool to transform a set of floats into some desktop speakers.

They really do need a better frame...

Happy birthday Colin!!

You could very well be right if there are indeed only 6 wires on the transformer.

The transformer could have 100v taps as well so the whole thing would be series connected. Best way to check is with an ohm meter but it requires you to open up many insulation that there is on the connected wires. Not a big deal really...

Ok, no markings then. What you can do is to look at the wires which come from the AC input and into the transformer. If the voltage is switchable then you have 4 wires grouped together (could be more) which are then tied to the AC input in some way. For 230v the two center wires are connected together and the other two tied to the AC.

Happy birthday!!!

The Mk1 has never lacked any treble to my ears and is a welcome break from all those transducers out to impress with an exaggerated treble. The is almost identical but the slightly more forward nature makes it better for more upbeat music as the bass has a just a bit more attack after they have been modified. With the followers then the amp could have a chance of driving the 007's but it simply remains to be seen.

O2 killer!!!! ...

It's leather!!!!! The Mk2 is slightly more forward then the Mk1 so the treble is a bit more expressive but it's by no means a big difference.

You are using output caps which will limit the bandwidth of the amp.

I do believe that the transformer is a custom unit as what other design has use for the impedances involved. Do you see many speaker amps with 300ohm output taps, let alone 30 or even 20ohm? The fact that a transformer can be bought now proves nothing as it had to be available before the 307a was designed to be relevant.

With the F5 under way we need to shift the Aleph so pictures when you can.

I use Audiogon quite often and get offers from all around the world. Most components are easy to change to 117 which would open up the buyers pool. Do you have any internal pics of the Aleph or the make/model of the transformer?

Did you ever try to sell the Aleph on Audiogon? There appears to be some market for the DIY Pass stuff. It's much cheaper the ebay too.

SAVING UP!!!!!! You Scot's and your crazy ideas...

It's been confirmed that the pic is free to be posted so here you go:

Ok, but wasn't it behind closed doors? Hey, I'm a Nordic God so I can do what I please. If that's dressing up in drag then thats my business...

I took the picture down since I'm not sure if I could share it in the first place and I can't remember who sent it to me. I have a lot of pictures that can't be shared so better to err on side of caution...

Here is a picture of the insides of the amp. I can't for the life of me remeber where I got it so if it steps on any toes, will the mods please remove it or I can just remove it from the 'shack. If the other stuff in this price range even approached to be half as well designed and executed as this then there could actually be some competition to speak of. I don't think that he uses Tango iron as they usually have a cutout at the bottom with terminals and not lead wires but it could simply be hidden from view by the PCB. The CCS is clearly off board. Btw. I approve of the Metcal soldering iron...

Do you want me to loan you Mj

Hey!! It hasn't even recuperated from the last crash... :'(

Don't forget that you can take the same design priciples and apply them to a 'stat amp too. All triodes with either direct or transformer coupling... yummy.

Congrats!! I plan to spend this Friday night stuffing four Blue Hawaii PCB's with parts. Mmmm PRP and Holco resistors...