Re: ECC83 tube



Phil Allison wrote:
"Jim in Jerk"
Phil Allison wrote:
"adam79"

That's why the first sentence of my post reads the way it does..
** Meaningless - just like your dumb question.


Anyways, in response to the other questions, they are the pre-tubes that are in my JMP 2204. The amp was made to sell in the UK, which is why the tubes are ECC83s instead of 12ax7s.
It has the 220V power transformer?

** Don't know much about Marshalls - do you.
Yes, I know a little about them.


** But obviously nothing about the voltage selectors on UK models.

What good is a voltage selector if it doesn't have a 220V primary? Want to play semantics?



And you just posted to the wrong person.
I knew I was posting to two guys in one message.


** A very stupid practice and very bad usenet etiquette.

There's "netiquette" in AGA???




** The JMP 2204 was made up to 1981, according to "dr.tube.com".

So your no brand ECC83s are likely original, pre 1981 make
What makes you think that they haven't been replaced in the last 28 odd years?
** See the word " likely " ??

The original tubes in those amps were as the OP describes.
Not in mine. I bought my JMP new, and it came with marked Tungsram preamp tubes, marked GE 6550A power tubes.


** So what ???

The OP says he bought the **UK** version - same amp sold everywhere except for the US, Canada & Japan.

They used un-branded ECC83s and EL34s, some of which had "Marshall" printed on the glass.

That is the model being discussed.



..... Phil
.



Relevant Pages

  • Re: ping Jim: Marshall advice
    ... the JMP the 50-W, master volume version is the Holy Grail (at least in some ... the JCM 800. ... MORE IMPORTANTLY, it has lower voltages on the plates, both power amp and preamp. ... The GE tubes are GREAT tubes for power, ...
    (alt.guitar)
  • Re: ping Jim: Marshall advice
    ... I'm suffering from a case of amp gas, basically looking to find a nice ... One of the local used music stores has a couple of JCM 800 2204 heads, ... JMP 2204. ... A note about tubes: The amps for export came with GE 6550A. ...
    (alt.guitar)
  • Re: ECC83 tube
    ... The amp was made to sell in the UK, which is why the tubes are ECC83s instead of 12ax7s. ... So your no brand ECC83s are likely original, ... my 1980 production JMP 2204 came with Tungsram preamp tubes. ...
    (alt.guitar.amps)
  • Re: ECC83 tube
    ... The amp was made to sell in the UK, ... So your no brand ECC83s are likely original, ... The original tubes in those amps were as the OP describes. ... I bought my JMP new, and it came with marked Tungsram preamp ...
    (alt.guitar.amps)
  • Re: ECC83 tube
    ... The amp was made to sell in the UK, which is why the tubes are ECC83s instead of 12ax7s. ... I bought my JMP new, and it came with marked Tungsram preamp tubes, marked GE 6550A power tubes. ...
    (alt.guitar.amps)