HiFi Subjectivist ¦ Audio Forum ¦ NVA User Group

Mains transformer now has a cover:

That is lush, sit back be proud of you're work and pour yourself a large one.

Its pink

Dr Bunsen Honeydew wrote: ↑Tue Mar 26, 2019 8:25 pm Its pink

Rose Gold, the 'in' colour.

that colour works great with the speaker baffles, the whole thing looks great!

Wow

And here is the circuit:


Dead simple. The absolute antithesis of the complicated stuff I was doing last year and all the better sounding for it.

I think the boxed up OTL been running long enough now not to be about to blow up, so earlier this afternoon, I did the final construction job of bypassing the output capacitors. It says 6.8uF on the schematic, but I'm buggered if I can find any of the four I allegedly have.
So improvising a bit, I used the best alternatives I had, as the bypasses. These are a pair of big, 600V, 0.47uF, Jupiter, Red Astron "molded" guitar amp capacitors across the cheapo nonedescript 6800uF 63V main output caps. I'd used the Jupiters previously in the pink 2A3 SET to give the a nice fat vintage tone I like for my '60s music.

Fookin 'ell them Jupiters are great on bypass duty. Nice vocal tone, good treble speed and midrange clarity, all mixed up together in just the right proportions for my aging lugholes. No nasties IOW.......Niiice....

And a couple hours down the line and the OTL is putting out some fab tone. These Jupiter Astron caps have not been used for a couple of years, so I suspect, they needed a thorough warming through in order to show once again, their true colours. Well they certainly get warmed through in this amp .
The sound has really fleshed out now. I'm getting a lovely, full fat, saturated sound. It's doing the "King Tone" thing like a champ. Music all the way!