Unfinished WAD 300b PP kit

[cc454]

I am waiting on delivery of my ebay find of an unfinished W.A.D. kit. It appears to have all the iron install, tag boards and a few components installed.

In the mean time I have been researching the amp and its schematic and have been enjoying the results.

I am not sure if the mains transformer has export type primary taps.

Does anybody know what to look for?

Will post pics as soon as it arrives.

[John Caswell]

There were 2 types of 300B pp amplifier - one a mono block and the other a stereo version, any idea which?

John

[Pingushome]

Hi CC454,
if this is the amp with the wood surround on EBay it’s a strereo power amp, but I’m not sure it’s a world audio designs amp it may be an American clone. No doubt the circuit will be near enough identical tho. Be careful of the mains voltage if it’s the US one as you have already mentioned
No doubt someone on here will know when it arrives and you post some pix
Good luck
Martin

[cc454]

Yep, that's the very one.

I was unfamiliar with the WAD brand until I started on the research. It does have "Panacea Engineering Company" right there in the artwork. Could not find anything on them.

I have been looking to build something a little more exotic for home use.

[A Stuart]

This may be relevant. Have not read the whole thing.
See post #42, where the author heli001 appears to be, or to work for, Panacea Engineering.
https://www.audio-talk.co.uk/phpBB3/...=3542&start=30

[Pingushome]

Originally Posted by A Stuart

This may be relevant. Have not read the whole thing.
See post #42, where the author heli001 appears to be, or to work for, Panacea Engineering.
https://www.audio-talk.co.uk/phpBB3/...=3542&start=30

Oh very well detected indeed Stuart, we will have to start to call you Sherlock! 👍🤭
Yes that is what CC 454 has bought
Martin

[cc454]

Originally Posted by A Stuart

This may be relevant. Have not read the whole thing.
See post #42, where the author heli001 appears to be, or to work for, Panacea Engineering.
https://www.audio-talk.co.uk/phpBB3/...=3542&start=30

Oddly enough I think this is that very same amp he started.

[cc454]

I'm doing a little more late night surfing/research and was wondering how are prices of Ukrainian/Russian tubes there in the UK?

I see new importers popping up in the surrounding countries but I am wary to risk too much on them.

[cc454]

The unit arrived and looks none the worse from the original ad. It looks like the original builder got as far as mounting all the iron and assembled the components to the driver tag boards. What appears to be missing is the filter caps and the filament stuffing.

Tomorrow I will verify the mains winding and start putting together a plan and a parts list!

[Greg.]

Hope it goes well