OLD Rca/Victor Tubes: 5U4G, 6F6G. Anyone know what they're worth?

[Low_fidelity2100]

I Picked up an old RCA/Victor Radio/Phonograph awhile back at Salvation army. Inside I found a bunch of old RCA/Victor labeled tubes. Mostly stuff that has no use in a guitar amp. But theres a 5U4G rectifier tube, and two 6F6G power tubes. An I was wondering if anyone knows if they're worth anything.

They look like this...

With the big "Coke bottle" look an all. Same logo etc...

I know for sure that the 6F6G's both work, as does the 5U4G. No idea how fresh(?) they are though.
From what I've been able to find some people like to put 6F6G's in Deluxe Reverbs. To lower the power (or so they say). Apparently they'll generally work in 6V6 amps, just put out less watts, sound different, and have a higher filament current (which suppousedly isn't a problem in most amps).

So anyone have any Idea if either the 5U4G, or 6F6G's are worth anything? I personally have no use for them. Other than setting in the back of a broken radio an lookin all old an stuff. Haha.

 

[glassman]

Re: OLD Rca/Victor Tubes: 5U4G, 6F6G. Anyone know what they're worth?

I have no idea what they are worth...I suppose it would be whatever someone was willing to fork out for them. The 6F6's may be of interest to someone that has a very old Fender Reverb unit. That was the tube Fender used before going to a 6V6.

Jerry

 

[glassman]

Re: OLD Rca/Victor Tubes: 5U4G, 6F6G. Anyone know what they're worth?

...I may be wrong about that...now I'm thinking it was a 6K6 that came in the ealy Reverb units. My schematics are 15 mile away and my memory isn't what it used to be.

Jerry

 

[ES350]

Re: OLD Rca/Victor Tubes: 5U4G, 6F6G. Anyone know what they're worth?

Glassman; Right you are---6K6 was the power tube in the original Fender tanks.
The 5U4G is a nice tube if it works (it either does or it doesn't), but it goes for maybe 15-20 bucks...
The 6F6 was used as an output tube in some RCA, Hallicrafter, and other 30-40's radios and some places list it as a preamp tube (!)...I wouldn't use them in place of 6V6's. Pretty common tube, price runs from 10-25 bucks...

 

[Low_fidelity2100]

Re: OLD Rca/Victor Tubes: 5U4G, 6F6G. Anyone know what they're worth?

Glassman; Right you are---6K6 was the power tube in the original Fender tanks.
The 5U4G is a nice tube if it works (it either does or it doesn't), but it goes for maybe 15-20 bucks...
The 6F6 was used as an output tube in some RCA, Hallicrafter, and other 30-40's radios and some places list it as a preamp tube (!)...I wouldn't use them in place of 6V6's. Pretty common tube, price runs from 10-25 bucks...

Ahh kool, thanks man!

So they're not worth enough to bother trying to sell, so there for...My Broken radio gets to be Broken, with the original tubes still in it.

I wasn't planning on useing the 6F6's in place of 6V6's myself. Just in reading up on them this morning, I read that some people use em like that.

 

[ES350]

Re: OLD Rca/Victor Tubes: 5U4G, 6F6G. Anyone know what they're worth?

The 5U4G may come in handy to loosen up an amp with a 5AR4 rectifier...just watch the current draw.

 

[Myles]

Re: OLD Rca/Victor Tubes: 5U4G, 6F6G. Anyone know what they're worth?

...I may be wrong about that...now I'm thinking it was a 6K6 that came in the ealy Reverb units. My schematics are 15 mile away and my memory isn't what it used to be.

Jerry

6K6 is correct