Univox U45-B All Tube Combo - Closet Find???

[misterc57]

Thoughts some of you may enjoy seeing this one. Picked it up yesterday. Looks like it has never been used, still has hang tags, footswitch looks never used.

Mullard power tubes, RCA preamp, IEC rectifier, Jensen 12 speaker, 2 prong power cord (will make great speaker cable once removed), schematic folded inside cab...

Have not powered up slow yet. Will be installing a 3 prong AC cord.

Thoughts? To dos?

Thank you

univox-u45b.pdf

[mozz]

Nice find. I don't think that speaker is original but you never know. 6bm8 are a lot cheaper NOS than other power tubes. Only thing is I don't like those Japanese caps, even the ones marked oil seem to test bad.

[g1]

Agree with Mozz, it's likely most of those Panasonic and Atlas caps will be leaky.

[misterc57]

I'm amused that they emphasize no shock hazard, being a step up from low cost non power transformer models.

[trobbins]

Contact cleaner on the valve sockets, and insertion exercise ? Protection diodes on the valve rectifier anodes ?

[mozz]

Agree with Mozz, it's likely most of those Panasonic and Atlas caps will be leaky.

I forget what i was taking apart, a Japanese radio or tape recorder, for parts, probably tube, and wanted some of the old caps and resistors for a SuperFuzz build. I saw those caps, marked "oil capacitor" and figured they must be good. Nope, they were bad with values no where near what was marked.

[The Dude]

That reminds me so much of my first amp. It may have even been one of these. I don't recall for sure. I was cranking it in the basement once and let the smoke out of it. Being a dumb kid and it being about the time transistor amps were becoming the rage, I threw it in the trash bin and bought a newfangled transistor amp. If only I'd known then what I know now.

[Jazz P Bass]

Remove the death cap!