I enjoy "tube rolling" in guitar amps, and subbing out 12AX7 with 12AT7,
5751, 12AY7 etc.

problem is, I have an amp that uses a 6EU7, and it doesn't appear to have
any pin compatible "rolling" prospects.

what is the trick to tube rolling in this amp (besides just other brands of
6EU7), I want to try a different amplification factor with a minimum of fuss
(guitar players don't like a lot of fuss, it needs to be "plug & play" when
I am done.

I also don't want to convert it to the 12AXX family, as I like the unique
sound of 6EU7 (and family?, is there such a family?)

ideas?

"arizona cowboy" cacheoverflowATyahoo.com wrote in message
...
I enjoy "tube rolling" in guitar amps, and subbing out 12AX7 with 12AT7,
5751, 12AY7 etc.

problem is, I have an amp that uses a 6EU7, and it doesn't appear to have
any pin compatible "rolling" prospects.

what is the trick to tube rolling in this amp (besides just other brands
of
6EU7), I want to try a different amplification factor with a minimum of
fuss
(guitar players don't like a lot of fuss, it needs to be "plug & play"
when
I am done.

I also don't want to convert it to the 12AXX family, as I like the unique
sound of 6EU7 (and family?, is there such a family?)

ideas?


It would appear to be a family of one.

Try to buy a PL802-E (SS replacement for PL802) and use the connector
to make an adaptor-socket .......


"arizona cowboy" cacheoverflowATyahoo.com schreef in bericht
...
I enjoy "tube rolling" in guitar amps, and subbing out 12AX7 with 12AT7,
5751, 12AY7 etc.

problem is, I have an amp that uses a 6EU7, and it doesn't appear to have
any pin compatible "rolling" prospects.

what is the trick to tube rolling in this amp (besides just other brands
of
6EU7), I want to try a different amplification factor with a minimum of
fuss
(guitar players don't like a lot of fuss, it needs to be "plug & play"
when
I am done.

I also don't want to convert it to the 12AXX family, as I like the unique
sound of 6EU7 (and family?, is there such a family?)

ideas?

Cowboy,

The 6EU7 was designed for as a low noise phono preamp tube, thus the
different base pinout configuration. give it a look, and you will see why.

Great tube.
not cheap though

Vin

"arizona cowboy" cacheoverflowATyahoo.com wrote in message
...
I enjoy "tube rolling" in guitar amps, and subbing out 12AX7 with 12AT7,
5751, 12AY7 etc.

problem is, I have an amp that uses a 6EU7, and it doesn't appear to have
any pin compatible "rolling" prospects.

what is the trick to tube rolling in this amp (besides just other brands
of
6EU7), I want to try a different amplification factor with a minimum of
fuss
(guitar players don't like a lot of fuss, it needs to be "plug & play"
when
I am done.

I also don't want to convert it to the 12AXX family, as I like the unique
sound of 6EU7 (and family?, is there such a family?)

ideas?

Hi,
I find that 6550s roll pretty straight, but 300Bs go around in
circles and break when they hit chair legs.

Cheers, Alan

Cowboy,

The only cousin I know of is the 20EZ7. Maybe there is a European
equivalent?

Carroll


"arizona cowboy" cacheoverflowATyahoo.com wrote in message
...
I enjoy "tube rolling" in guitar amps, and subbing out 12AX7 with 12AT7,
5751, 12AY7 etc.

problem is, I have an amp that uses a 6EU7, and it doesn't appear to have
any pin compatible "rolling" prospects.

what is the trick to tube rolling in this amp (besides just other brands
of
6EU7), I want to try a different amplification factor with a minimum of
fuss
(guitar players don't like a lot of fuss, it needs to be "plug & play"
when
I am done.

I also don't want to convert it to the 12AXX family, as I like the unique
sound of 6EU7 (and family?, is there such a family?)

ideas?

On Thu, 23 Oct 2003 17:43:04 +0000, arizona cowboy wrote:


I also don't want to convert it to the 12AXX family, as I like the unique
sound of 6EU7 (and family?, is there such a family?)

Other than the pinout, the 6EU7 has identical characteristics
to the 12AX7, and if you get a 12AX7 and a 6EU7 from the
same manufacturer & vintage, you'll see they're identical
internally.

OTOH, you can probably get good NOS versions (like RCA
& Sylvania) of 6EU7 cheaper than you can get similar
12AX7, just because there's a lot less demand for 6EU7.

--
Ned Carlson Triode Electronics
www.triodeelectronics.com

The Russian 6N2P (often written 6H2n) is a 6EU7 indeed, and should be
reasonably cheap. AFAIK it's a family of one, so You should put some switch
in there to connect 6.3V either to pins 4&5 (as in 6EU7) or (4+5) & 9 in
order to fit the 12XX family.

Watch out....

Ciao

Fabio


"arizona cowboy" cacheoverflowATyahoo.com ha scritto nel messaggio
...
I enjoy "tube rolling" in guitar amps, and subbing out 12AX7 with 12AT7,
5751, 12AY7 etc.

problem is, I have an amp that uses a 6EU7, and it doesn't appear to have
any pin compatible "rolling" prospects.

what is the trick to tube rolling in this amp (besides just other brands
of
6EU7), I want to try a different amplification factor with a minimum of
fuss
(guitar players don't like a lot of fuss, it needs to be "plug & play"
when
I am done.

I also don't want to convert it to the 12AXX family, as I like the unique
sound of 6EU7 (and family?, is there such a family?)

ideas?