What amp to build around 2x10 CTS ceramic speakers?

My Marshall jtm30 is a 2x10. I recommend a 2 x 6L6 as it'll push those 10s nicely. I would stick with one channel with master volume and effects loop.
If I could build an amp though, I would include a 9v DC tap to power a pedal board, an XLR out for recording, and a bias compensation doohickey to roll with other octal tubes.
Have you got a circuit in mind?

 

The obvious ones that come to mind are BF/SF Vibrolux, tweed or brown Super, or add a speaker and make a bigger baffle for a 3x10" Bandmaster setup. I kinda favor the latter because there's more low end and apparent volume. A 6L6 5F4 chassis is pretty much the same as a Bandmaster and that would be a pretty cool amp IMHO. I made a 3x10" combo out of a BF Bandmaster head and it was a great amp.

 

A ‘63 Vibroverb would be my choice...

or maybe a half-Super Reverb...A Sup Rev?

 

I've been holding on to a couple of late 60's C10N Jensen's for a 6G16 build.

 

Beside the obvious...

A 5E7 with 5881's (low powered 6L6) as a 2x combo.

The gravity thing is more problematic these days so I might let them live in a 2x10 speaker cabinet. Like this.

 

A V-front Super would be cool.

 

I think they'd sound great in a 6G16. It's already half BF anyway...

 

I've not found the ceramic 70's CTS's to be very good sounding. They sounded kind of loose and grainy, big voice coil gap would be my guess. Albeit they have large magnets. But yours were reconed, who reconed and to what type of speaker were they done? What were they out of?
Mine looked like this:

 

I'm in love with the Hoffman 18W 6V6 powered Plexi

 

Yeah, I like the 6g16 or BF Vibrolux idea!

35-40 watts, 2x10... Bet those CTS would sound just fine!

 

I believe mine were 16 ohm out of a Super Six or something like that. Yours may come out great!

 

+1. Nicer trem, more usable volume than Vibrolux which otherwise would be the pick.

 

Or go crazy and a little rare/oddball and make a replica of the old Brownface/Brown Tolex Super...

Pretty rare—I’ve only seen two in my life...

EDIT:
can y’all tell I’m a Brownface enthusiast?

 

Blackface amps, such as the Vibrolux Reverb, are going to be a bit cleaner and—in your words—“sparklier” than a brownface amp such as a Vibroverb.

There’s plenty of clean tones in the Vibroverb and—with some tweaking of the tone knobs—some sparkle to be found as well...

But it appears the Blackface Vibrolux is your goal, so I would go in that direction...

 

I've had a BF Vibrolux Reverb and a 6G16 Vibroverb (Reissue) at the same time. Also, had a Princeton Reverb Reissue at the same time as well. Oh, and I owned a Deluxe Reverb Ri at the same time I had the Vibrolux.... It's been a convoluted journey. LOL

I do not have any real experience with a tweed Super, I'm afraid.

But, I'll try to give you a brief (LOL) version of my experience.

Started when I got the Deluxe Reverb. Great rock and roll tone, bright, cutting, it's a DR, right? Lance brought over his '69 Vibrolux Reverb and I was hit by it basically being a bigger, punchier version of the DR... But with the glassy 6l6 thing added in. I was in love and knew I'd have to own a VR some day. I began searching, and ended up stumbling into a '63 Vibroverb Ri for a deal.

The Vibroverb was much warmer, a lot more clean headroom than the DRRi and has the bias vary trem. Chewy, juicy, warm. Loved it from the get-go. I sold the DRRi. Never looked back. Eventually, Lance made me a deal on the Vibrolux Reverb, and I had these two great gigging amps. The Vibroverb worked better at lower volumes... The Vibrolux had that kinda thin lower volume tone, but it was still much better than the Deluxe at low volume. It is definitely more scooped than the 6g16. The reverb is more scooped, the general tone is more scooped and the vibrato is much less appealing to me. Somewhere during this period, I landed a '65 Princeton Reverb (with a V30 in it) and had all three... They kinda lined up Vibroverb, Princeton, Vibrolux in the warm to scooped scale.

But, they all sounded like Fenders.

The Princeton went first... The V30 made it almost as heavy as either of the other two amps, so it really wasn't the grab and go amp I had wanted.

The Vibrolux went next. Traded it for a 5e3 and some cash. Still got the 5e3. More grab and go compatible, breaks up sooner for smaller gigs... And, heck, it sounds like a tweed Deluxe!

I still have the '63 Vibroverb. Although, admittedly, I haven't turned it on in a while (I need to figure out some oscillation thing going on with it) and I've been playing mostly tweed amps for a while now. Also, I added a Marshall to the mix, it's been another smaller wattage amp.

For me, the warmer, mid-heavier older Fender amps are more appealing. I don't currently own any blackface derivatives... Although, I've contemplated a Super Reverb recently... Or, maybe another Princeton Reverb, probably a bit more stock, though.