Valve advice needed

[Subthumper]

Hi I've been asked to repair and amp and one of the valves is a 7025. I've told that this is the same as a 12AT7 or a ECC82. Can any of you valve anoracks clarify this or point me in the direction of someone who can? Its actually a guitar amp (Fender Quad reverb..a 4x12 100w combo...bloody hooooge) but does sound rather nice.
Cheers Just

[obbm]

[quote name='Subthumper' post='126519' date='Jan 23 2008, 11:01 PM']Hi I've been asked to repair and amp and one of the valves is a 7025. I've told that this is the same as a 12AT7 or a ECC82. Can any of you valve anoracks clarify this or point me in the direction of someone who can? Its actually a guitar amp (Fender Quad reverb..a 4x12 100w combo...bloody hooooge) but does sound rather nice.
Cheers Just[/quote]

I think you'll find that it's the same as a 12AX7/ECC83. have a look at [url="http://thetubestore.com/gainfactor.html"]this[/url]or Google 7025.

[Dood]

[quote name='obbm' post='126524' date='Jan 23 2008, 11:07 PM']I think you'll find that it's the same as a 12AX7/ECC83. have a look at [url="http://thetubestore.com/gainfactor.html"]this[/url]or Google 7025.[/quote]


^^^ What Dave says ;o)

[Subthumper]

Cheers folks,a very usefull link that one.
Cheers Just

[andy67]

as above - but if you do not know what you are doing with valves - dont touch it!

these things are lethal in the hands of amatures!

[Subthumper]

[quote name='andy67' post='128147' date='Jan 26 2008, 09:31 AM']as above - but if you do not know what you are doing with valves - dont touch it!

these things are lethal in the hands of amatures![/quote]


Indeed, I used to work on studio photo flash systems, so I know about lots of voltage and and learned very quickly too after a couple of mishaps. Defo not a job to do after a lunchtime drink.